MCP4706A3T-E/CH Microchip Technology, MCP4706A3T-E/CH Datasheet

Single, 8-bit NV DAC With Ext Vref And I2C Interface 6 SOT-23 T/R

MCP4706A3T-E/CH

Manufacturer Part Number
MCP4706A3T-E/CH
Description
Single, 8-bit NV DAC With Ext Vref And I2C Interface 6 SOT-23 T/R
Manufacturer
Microchip Technology
Series
-r
Datasheet

Specifications of MCP4706A3T-E/CH

Number Of Converters
1
Conversion Rate
1
Resolution
8 bit
Interface Type
I2C
Settling Time
6 us
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Package / Case
SOT-23-6
Maximum Power Dissipation
452 mW
Minimum Operating Temperature
- 40 C
Supply Current
210 uA
Number Of Bits
8
Data Interface
EEPROM, I²C, Serial
Voltage Supply Source
Single Supply
Power Dissipation (max)
452mW
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Number Of Outputs And Type
*
Lead Free Status / Rohs Status
 Details
Features
• Output Voltage Resolutions
• Rail-to-Rail Output
• Fast Settling Time of 6 µs (typical)
• DAC Voltage Reference Options
• Output Gain Options
• Nonvolatile Memory (EEPROM)
• Power-Down Modes
• Low Power Consumption
• Single-Supply Operation: 2.7V to 5.5V
• I
• Small 6-lead SOT-23 and DFN (2x2) Packages
• Extended Temperature Range: -40°C to +125°C
Applications
• Set Point or Offset Trimming
• Sensor Calibration
• Low Power Portable Instrumentation
• PC Peripherals
• Data AcquisitionSystems
• Motor Control
© 2011 Microchip Technology Inc.
- 12-bit: MCP4726
- 10-bit: MCP4716
- 8-bit: MCP4706
- V
- V
- Unity (1x)
- 2x, only when V
- Auto Recall of Saved DAC register setting
- Auto Recall of Saved Device Configuration
- Disconnects output buffer
- Selection of V
- Normal Operation: 210 µA typ.
- Power Down Operation: 60 nA typ.
- Eight Available Addresses
- Standard (100 kbps), Fast (400 kbps), and
2
C™ Interface:
source
(Voltage Reference, Gain, Power Down)
(640 kΩ, 125 kΩ, or 1 kΩ)
(PD1:PD0 = “11”)
High-Speed (3.4 Mbps) Modes
DD
REF
8-/10-/12-Bit Voltage Output Digital-to-Analog Converter
Pin
OUT
REF
pull-down resistors
pin is used as voltage
with EEPROM and I
MCP4706/4716/4726
Package Types
Description
The MCP4706/4716/4726 are single channel 8-bit,
10-bit, and 12-bit buffered voltage output Digital-to-
Analog Converters (DAC) with nonvolatile memory and
an I
to as MCP47X6.
The V
DAC’s reference voltage. When V
connected internally to the DAC reference circuit.
When the V
output buffer’s gain to 1 or 2. When the gain is 2, the
V
V
The DAC Register value and configuration bits can be
programmed to nonvolatile memory (EEPROM). The
nonvolatile memory holds the DAC Register and
configuration bit values when the device is powered off.
A device reset (such as a Power On Reset) latches
these stored values into the volatile memory.
Power-down modes enable system current reduction
when the DAC output voltage is not required. The V
pin can be configured to present a low, medium, or high
resistance load.
These devices have a two-wire I
interface for standard (100 kHz), fast (400 kHz), or high
speed (3.4 MHz) mode.
These devices are available in small 6-pin SOT-23 and
DFN 2x2 mm packages.
V
V
V
REF
DD
OUT
SS
DD
2
2
/2.
C Interface
C Serial Interface. This family will also be referred
* Includes Exposed Thermal Pad (EP); see
2
REF
1
3
pin voltage should be limited to a maximum of
pin or the device V
SOT-23-6
REF
MCP4706 / 16 / 26
pin is used, the user can select the
6
5
4
SCL
SDA
V
REF
DD
V
SDA
SCL
REF
can be selected as the
2
C™ compatible serial
DD
1
2
3
is selected, V
DS22272A-page 1
2x2 DFN-6*
EP
7
Table
6
5
4
3-1.
V
DD
V
V
OUT
OUT
DD
SS
is

Related parts for MCP4706A3T-E/CH

MCP4706A3T-E/CH Summary of contents

Page 1

... Small 6-lead SOT-23 and DFN (2x2) Packages • Extended Temperature Range: -40°C to +125°C Applications • Set Point or Offset Trimming • Sensor Calibration • Low Power Portable Instrumentation • PC Peripherals • Data AcquisitionSystems • Motor Control © 2011 Microchip Technology Inc Interface Package Types MCP4706 / ...

Page 2

... MCP4706/4716/4726 Block Diagram V REF Buffer DAC Register SDA EEPROM SCL Control Logic DS22272A-page 2 :V REF1 REF0 Gain ( PD1:PD0 Op Amp PD1:PD0 OUT © 2011 Microchip Technology Inc. ...

Page 3

... ESD protection on all pins .................................... ≥ (HBM) .................................................................................... ≥ 400V (MM) Maximum Junction Temperature (T ) ......................... +150°C J © 2011 Microchip Technology Inc. MCP4706/4716/4726 † Notice: Stresses above those listed under “Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied ...

Page 4

... V/S (Note = 5 kΩ from V to GND 100 pF, T OUT A Conditions :V = ‘00’, REF1 REF0 , V is unloaded, SS OUT :V = ‘11’ REF1 REF0 REF unloaded, SS OUT (Note 6), not connected OUT ) < V RAM POR 1, Note 4) DD © 2011 Microchip Technology Inc. ...

Page 5

... The power-up ramp rate affects on uploading the EEPROM contents to the DAC register. It measures the rise of V over time. 5: This parameter is ensured by characterization, and not 100% tested. 6: The PD1:PD0 = ‘10’, and ‘11’ configurations should have the same current 5.5V. DD © 2011 Microchip Technology Inc. MCP4706/4716/4726 = 2.7V to 5.5V 0V Min Typical Max Units ± ...

Page 6

... V not connected. OUT OUT = 2.048V ± 0.1V, REF :V = ‘10’ ‘0’ REF1 REF0 = 2.048V ± 0.1V, REF :V = ‘10’ ‘1’ REF1 REF0 = 2.048V ± 0.1V, REF :V = ‘10’ ‘0’, REF1 REF0 DD © 2011 Microchip Technology Inc. ...

Page 7

... The power-up ramp rate affects on uploading the EEPROM contents to the DAC register. It measures the rise of V over time. 5: This parameter is ensured by characterization, and not 100% tested. 6: The PD1:PD0 = ‘10’, and ‘11’ configurations should have the same current 5.5V. DD © 2011 Microchip Technology Inc. MCP4706/4716/4726 = 2.7V to 5.5V 0V Min Typical Max Units — ...

Page 8

... SCL at end of ACK bit POR BOR t BORD pulled down by internal OUT 500 kΩ (typical) resistor ACK t PDD ≤ +125°C (extended 5.5V +25° Conditions → > V transitions from V DD(MIN) POR driven to V disabled OUT = © 2011 Microchip Technology Inc. ...

Page 9

... HD STO Hold time 94 T HVC to SCL Setup time HVCSU 95 T SCL to HVC Hold time HVCHD © 2011 Microchip Technology Inc. MCP4706/4716/4726 Standard Operating Conditions (unless otherwise specified) –40°C ≤ T Operating Temperature Operating Voltage V range is described in DD Min Max Units Standard Mode ...

Page 10

... A Electrical characteristics Units Conditions ns 2.7V-5.5V ns 2.7V-5.5V ns 4.5V-5.5V ns 4.5V-5.5V ns 2.7V-5.5V ns 2.7V-5.5V ns 4.5V-5.5V ns 4.5V-5.5V 2 C-bus system, but the 2 C bus specification) before and specification, but must be tested ) or Clock Low time (T ) can be LOW parameter ( FSDA RSDA © 2011 Microchip Technology Inc. ...

Page 11

... Data Output: This parameter is characterized, and tested indirectly by testing T 7: Ensured by the T 3.4 MHz specification test. AA The specification is not part of the specification © 2011 Microchip Technology Inc. MCP4706/4716/4726 Standard Operating Conditions (unless otherwise specified) –40°C ≤ T Operating Temperature Operating Voltage V range is described in ...

Page 12

... Note 100 pF, Note 1, Note 8 ns Time the bus must be free before a new transmission ns can start C-bus system, but the 2 C bus specification) before and specification, but must be tested ) or Clock Low time (T ) can be LOW parameter ( FSDA RSDA © 2011 Microchip Technology Inc. ...

Page 13

... Data Output: This parameter is characterized, and tested indirectly by testing T 7: Ensured by the T 3.4 MHz specification test. AA The specification is not part of the specification © 2011 Microchip Technology Inc. MCP4706/4716/4726 Standard Operating Conditions (unless otherwise specified) –40°C ≤ T Operating Temperature Operating Voltage V range is described in ...

Page 14

... Symbol Min Typical Max T -40 — +125 A T -40 — +125 A T -65 — +150 A θ — 190 — JA θ — 91 — exceed the Maximum Junction Temperature of +150° GND. SS Units Conditions °C °C Note 1 °C °C/W °C/W © 2011 Microchip Technology Inc. ...

Page 15

... Volatile DAC Register Code FIGURE 2-3: INL vs. Code (code = 6 to 250) and Temperature (MCP4706 5V ‘00’. DD REF1 REF0 © 2011 Microchip Technology Inc. MCP4706/4716/4726 12 -40C +25C +85C 8 +125C -12 3072 4096 0 FIGURE 2-4: 4000) and Temperature (MCP4726 2.7V, V ...

Page 16

... REF0 256 384 512 640 768 896 1024 Volatile DAC Register Code DNL vs. Code (code = ‘00’. REF1 REF0 64 96 128 160 192 224 256 Volatile DAC Register Code DNL vs. Code (code = ‘00’. REF1 REF0 © 2011 Microchip Technology Inc. ...

Page 17

... Temperature (°C) FIGURE 2-15: Zero Scale Error (ZSE) vs. Temperature (MCP4706 5V ‘00’. DD REF1 REF0 © 2011 Microchip Technology Inc. MCP4706/4716/4726 = 5V 0V Internal, Gain = x1 -18.0 -20.0 -22.0 -24.0 -26.0 -28.0 2.7V -30.0 5.0V 5.5V -32.0 80 100 120 ...

Page 18

... Volatile DAC Register Code INL vs. Code (code = ‘10’ ‘0’, REF1 REF0 . 64 96 128 160 192 224 256 Volatile DAC Register Code INL vs. Code (code = ‘10’ ‘0’, REF1 REF0 . © 2011 Microchip Technology Inc. ...

Page 19

... Volatile DAC Register Code FIGURE 2-27: DNL vs. Code (code = 6 to 250) and Temperature (MCP4706 5V ‘10’ ‘0’, DD REF1 REF0 REF DD © 2011 Microchip Technology Inc. MCP4706/4716/4726 = 5V 0V Internal, Gain = x1 0.4 0.3 0.2 0.1 0.0 -0.1 -0.2 -40C +25C -0.3 ...

Page 20

... Full Scale Error (FSE) vs ‘10’ ‘0’, REF1 REF0 . 100 120 Temperature (°C) Full Scale Error (FSE) vs ‘10’ ‘0’, REF1 REF0 . 100 120 Temperature (°C) Full Scale Error (FSE) vs ‘10’ ‘0’, REF1 REF0 . © 2011 Microchip Technology Inc. ...

Page 21

... Volatile DAC Register Code FIGURE 2-39: INL vs. Code (code = 6 to 250) and Temperature (MCP4706 5V ‘11’ ‘0’, DD REF1 REF0 REF DD © 2011 Microchip Technology Inc. MCP4706/4716/4726 = 5V 0V Internal, Gain = x1 -40C +25C +85C 8 +125C -12 3072 4096 0 FIGURE 2-40: 4000) and Temperature (MCP4726). ...

Page 22

... Volatile DAC Register Code DNL vs. Code (code = ‘11’ ‘0’, REF1 REF0 . 64 96 128 160 192 224 256 Volatile DAC Register Code DNL vs. Code (code = ‘11’ ‘0’, REF1 REF0 . © 2011 Microchip Technology Inc. ...

Page 23

... Temperature (°C) FIGURE 2-51: Zero Scale Error (ZSE) vs. Temperature (MCP4706 5V ‘11’ ‘0’, DD REF1 REF0 REF DD © 2011 Microchip Technology Inc. MCP4706/4716/4726 = 5V 0V Internal, Gain = x1 -18.0 -20.0 -22.0 -24.0 -26.0 -28.0 2.7V -30.0 5.0V 5.5V -32.0 80 100 120 -40 -20 FIGURE 2-52: Temperature (MCP4726) ...

Page 24

... Volatile DAC Register Code DNL vs. Code (code = 25 to (2.7V, 5V, 5.5V) (MCP4716 ‘10’ ‘1’ /2, REF 128 160 192 224 256 Volatile DAC Register Code DNL vs. Code (code = 6 to (2.7V, 5V, 5.5V) (MCP4706). = ‘10’ ‘1’ /2, REF DD © 2011 Microchip Technology Inc. ...

Page 25

... Volatile DAC Register Code FIGURE 2-63: INL vs. Code (code = 6 to 250) and V (2.7V, 5V, 5.5V) (MCP4706 ‘11’ ‘1’ REF1 REF0 REF Temp = +25°C. © 2011 Microchip Technology Inc. MCP4706/4716/4726 = 5V 0V Internal, Gain = x1 0.5 0.4 0.3 0.2 0.1 0.0 -0.1 -0 ...

Page 26

... Volatile DAC Register Code DNL vs. Code (code = 25 to (MCP4716). REF :V = ‘10’ ‘0’, REF1 REF0 128 160 192 224 256 Volatile DAC Register Code DNL vs. Code (code = 6 to (MCP4706 ‘10’ ‘0’, REF1 REF0 © 2011 Microchip Technology Inc. ...

Page 27

... Volatile DAC Register Code FIGURE 2-75: INL vs. Code (code = 6 to 250) and V (MCP4706). REF ‘11’ ‘0’, DD REF1 REF0 V = 1V, 2V, 3V, 4V, and 5V, Temp = +25°C. REF © 2011 Microchip Technology Inc. MCP4706/4716/4726 = 5V 0V Internal, Gain = x1 1 0.5 0.0 -0.5 -1.0 3072 ...

Page 28

... Temperature (°C) Output Error vs. = 2.7V and 5V ‘10’ ‘0’ REF 100 120 Temperature (°C) Output Error vs. = 2.7V and 5V ‘10’ ‘0’ REF 100 120 Temperature (°C) Output Error vs. = 2.7V and 5V ‘10’ ‘0’ REF DD © 2011 Microchip Technology Inc. ...

Page 29

... Temperature (°C) FIGURE 2-87: Output Error vs. Temperature (MCP4706 2.7V and 5V ‘11’ ‘0’ REF1 REF0 REF Code = 250. © 2011 Microchip Technology Inc. MCP4706/4716/4726 = 5V 0V Internal, Gain = x1 100 120 , DD 80 100 120 , DD 80 100 120 , kΩ 100 pF ...

Page 30

... FIGURE 2-91: Temperature 2.7V, 3.3V, 4.5V, 5.0V and 5.5V, DD PD1:PD0 = ‘11’. 80 100 120 80 100 120 = 5 kΩ 100 pF 100 120 Temperature (°C) Powerdown Current vs. © 2011 Microchip Technology Inc. ...

Page 31

... Temperature (°C) FIGURE 2-92: V Threshold of SDA/SCL IH Inputs vs. Temperature and 2.7V 5.0V 5. -40 - Temperature (°C) FIGURE 2-93: V Threshold of SDA/SCL IL Inputs vs. Temperature and © 2011 Microchip Technology Inc. MCP4706/4716/4726 = 5V 0V Internal, Gain = x1 100 120 FIGURE 2-94 5.0V 100 120 FIGURE 2-95: Current kΩ ...

Page 32

... DS22272A-page Internal, Gain = x1 REF FIGURE 2-98: Half-Scale Settling Time (400h to C00h) (MCP4726). FIGURE 2-99: Half-Scale Settling Time (C00h to 400h) (MCP4726). FIGURE 2-100: Exiting Power Down Mode (MCP4726, Volatile DAC Register = FFFh kΩ 100 pF © 2011 Microchip Technology Inc. ...

Page 33

... Note 1: The DFN package has a contact on the bottom of the package. This contact is conductively connected to the die substrate, and therefore should be unconnected or connected to the same ground as the device’s V pin. SS © 2011 Microchip Technology Inc. MCP4706/4716/4726 Standard Function Buffer Type Analog Buffered analog voltage output pin ...

Page 34

... Section 5.0 “I C Serial Interface” for 2 C Serial Interface communication. ) REF voltage or the V pin DD REF pin signal is selected, there is an option is selected as reference voltage, this pin “DAC’s (Resistor Ladder) and Table 4-4 for more details on © 2011 Microchip Technology Inc. C ...

Page 35

... Device in Device in unknown POR state state POR reset forced active FIGURE 4-1: Power-On-Reset Operation. © 2011 Microchip Technology Inc. MCP4706/4716/4726 4.1 Power-On-Reset / Brown Out Reset (POR/BOR) The internal Power-On-Reset (POR) / Brown-Out Reset (BOR) circuit monitors the power supply voltage (V ) during operation. This circuit ensures correct ...

Page 36

... Resistors in Resistor Ladder = 256 (MCP4706) FIGURE 4- proportional the ladder (256, 1024 voltage This means that S voltage has a typical impedance pin is used as the V voltage REF RL V DAC RL Register DAC Register Value * V RL 1024 (MCP4716) 4096 (MCP4726) Resistor Ladder. © 2011 Microchip Technology Inc. ) ...

Page 37

... POR event • BOR event 2 • write commands 2 • General Call Reset command © 2011 Microchip Technology Inc. MCP4706/4716/4726 4.4.2 OUTPUT VOLTAGE The volatile DAC Register’s value controls the analog V voltage, along with the device’s five configuration shows OUT bits. The volatile DAC Register’ ...

Page 38

... REF0 pin and REF © 2011 Microchip Technology Inc. ...

Page 39

... Function Normal operation kΩ resistor to ground 0 1 125 kΩ resistor to ground 1 0 640 kΩ resistor to ground 1 1 © 2011 Microchip Technology Inc. MCP4706/4716/4726 Gain (1x or 2x) ( Amp V W PD1:PD0 FIGURE 4-5: Diagram. 4.5.1 EXITING POWER-DOWN When the device exits the power down mode the following occurs: • ...

Page 40

... Status Bits RDY/BSY POR D MAX MAX . 11 Figure 4-6 shows the 2 Section 5.0 “I C Serial Interface” for 2 operation of the device Table 4-5 shows the factory is above N.V. Memory 1 0 POR Event D D Vol. Memory MCP4716 MAX 9 © 2011 Microchip Technology Inc. C ...

Page 41

... Note 1: Default configuration when the device is shipped to customer. The POR/BOR value may be modified by writing the corresponding nonvolatile configuration bit. 2: This device does not implement this bit, so there is no corresponding POR/BOR value. © 2011 Microchip Technology Inc. MCP4706/4716/4726 > POR is above V to ensure proper operation. ...

Page 42

... MCP4706/4716/4726 NOTES: DS22272A-page 42 © 2011 Microchip Technology Inc. ...

Page 43

... For details on the frame content (commands/data) refer to Section 6.0. 2 Refer to the NXP I C document for more details on the specifications. © 2011 Microchip Technology Inc. MCP4706/4716/4726 5.2 Signal Descriptions 2 The I C interface uses up to two pins (signals). These are: • ...

Page 44

... Acknowledge Waveform. Table 5-1 shows Bit Comment Response After device has received address and command, and valid conditions for EEPROM write 2 N. Module Resets “Don’t Care” if the collision occurs on the Master’s “Start bit” © 2011 Microchip Technology Inc. ...

Page 45

... SCL Data allowed START to change Condition 2 FIGURE 5- Data States and Bit Sequence. © 2011 Microchip Technology Inc. MCP4706/4716/4726 5.3.1.5 The Stop bit (see 2 to continue I C Data Transfer Sequence. The Stop bit is defined as the SDA signal rising when the SCL signal is “High”. ...

Page 46

... SOT-23 and MA for DFN ADDRESS / ORDER CODE Comment Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel 2 C © 2011 Microchip Technology Inc. ...

Page 47

... A = Not Acknowledge bit R/W = Read/Write bit P = Stop bit (Stop condition terminates HS Mode) FIGURE 5-10: HS Mode Sequence. © 2011 Microchip Technology Inc. MCP4706/4716/4726 After switching to the High-Speed mode, the next transferred byte is the I the device to communicate with, and any number of data bytes plus acknowledgements. The Master ...

Page 48

... General Call control byte. Any additional General Call commands are ignored and Not Acknowledged. Second Byte “7-bit Command” Specification - NXP specification # UM10204, Rev June 2007) n occurrences of (Data + A) Second Byte “Master Address” This indicates a “Hardware General Call” © 2011 Microchip Technology Inc. ...

Page 49

... General Call Reset N.A. General Call Wake-up Note 1: These bits are the MSb of the 2nd byte in the Don’t Care bit. This command format does not use C0 bit. 3: Device operation is not specified. © 2011 Microchip Technology Inc. MCP4706/4716/4726 2 TABLE 6- CLOCKS Command 2 C ...

Page 50

... D07 D06 D05 D04 D03 D02 D01 D00 2 C Master should generate Master can repeat the 2nd (2 at the falling edge of the OUT (3) (3) ACK bit Stop bit b07 b06 b05 b04 b03 b02 b01 b00 Data bits (8 bits) Note 1 Note © 2011 Microchip Technology Inc. ...

Page 51

... D11:D00 = 12-bit data for MCP4726 device D09:D00 = 10-bit data for MCP4716 device D07:D00 = 8-bit data for MCP4706 device FIGURE 6-2: Write Volatile Memory Command. © 2011 Microchip Technology Inc. MCP4706/4716/4726 After this ACK bit, the I Stop bit or the I command bits + 5 configuration bits), and the 3rd byte (8 data bits (b15:b08)), and the 4th byte (8 data bits (b07:b00)) ...

Page 52

... ACK bit A 0 b15 b14 b13 b12 b11 b10 b09 b08 Data bits (8 bits) (3rd byte) (3) Stop bit ACK bit b07 b06 b05 b04 b03 b02 b01 b00 Data bits (8 bits) (4th byte) Note 1 Note © 2011 Microchip Technology Inc. ...

Page 53

... SCL at the end of this ACK pulse. OUT 2: The 2nd byte can be repeated after the 2nd by continued clocking before issuing Stop bit. 3: ACK bit generated by MCP47X6. FIGURE 6-4: Write Volatile Configuration Bits Command. © 2011 Microchip Technology Inc. MCP4706/4716/4726 Read/Write bit (Write) (3) (3) ACK bit ACK bit A ...

Page 54

... ACK bit A 0 b07 b06 b05 b04 b03 b02 b01 b00 Vol. Data bits (8 bits) (4th byte) (5) Stop bit ACK/NACK bit A/N P 0/1 b07 b06 b05 b04 b03 b02 b01 b00 NV Data bits (8 bits) (7th byte) Note © 2011 Microchip Technology Inc. ...

Page 55

... The 2nd - 5th bytes can be repeated after the 5th byte by continued clocking before issuing Stop bit. 3: ACK bit generated by MCP47X6. Legend: D07:D00 = 8-bit data for MCP4706 device FIGURE 6-6: Read Command Format for 8-bit DAC (MCP4706). © 2011 Microchip Technology Inc. MCP4706/4716/4726 Read/Write bit (Read) (3) ACK bit ACK bit A ...

Page 56

... Acknowledgement pulse. The V value is determined by the EEPROM OUT contents. This command allows multiple MCP47X6 devices to be reset synchronously. Read/Write bit (Write) (3) (3) ACK bit ACK bit General Call Reset Command will OUT Stop bit P Note 1 Note 2 © 2011 Microchip Technology Inc. ...

Page 57

... The 2nd byte can be repeated after the 2nd by continued clocking before issuing Stop bit. 3: ACK bit generated by MCP47X6. FIGURE 6-8: General Call Wake-Up Command. © 2011 Microchip Technology Inc. MCP4706/4716/4726 Note: This command does not adhere to the I specification where if the LSb of the 2nd byte is a ‘ ...

Page 58

... MCP4706/4716/4726 NOTES: DS22272A-page 58 © 2011 Microchip Technology Inc. ...

Page 59

... IDEAL(@FS) DAC register code is at Full-scale the delta voltage of one DAC register code LSb step (such as code 000h to code 001h). © 2011 Microchip Technology Inc. MCP4706/4716/4726 7.5 Zero-Scale Error (ZSE) The Zero-Scale Error (see between the ideal and measured V volatile DAC Register equal to 000h. The Zero-Scale Error is the same as the Offset Error for this case (volatile DAC Register = 000h) ...

Page 60

... LSb The measured DAC output voltage difference between two adjacent input codes. DNL = 0.5 LSb DNL = 2 LSb 001 011 010 100 101 110 111 DAC Input Code Ideal Transfer Function Actual Transfer Function DNL Accuracy Example. © 2011 Microchip Technology Inc. ...

Page 61

... Error 0 DAC Input Code FIGURE 7-4: Gain Error and Full-Scale Error Example. © 2011 Microchip Technology Inc. MCP4706/4716/4726 7.10 Gain Error Drift The Gain error drift is the variation in gain error due to a change in ambient temperature. The gain error drift is typically expressed in ppm/ 7 ...

Page 62

... MCP4706/4716/4726 NOTES: DS22272A-page 62 © 2011 Microchip Technology Inc. ...

Page 63

... RC time constant. The pull-up resistor is typically chosen between 1 kΩ and 10 kΩ ranges for standard and fast modes, and less than 1 kΩ for high speed mode. © 2011 Microchip Technology Inc. MCP4706/4716/4726 8.1.1 DEVICE CONNECTION TEST The user can test the presence of the device on the I ...

Page 64

... Optional Optional V REF Analog C3 Output REF SDA To MCU 4 3 SCL 2 C pull-up resistors: = 100 kHz to 400 kHz SCL = 3.4 MHz SCL Ceramic Tantalum Optional to reduce noise in V pin. OUT Ceramic Tantalum Example MCP47X6 Circuit © 2011 Microchip Technology Inc. ...

Page 65

... Selectable Gain and Offset Bipolar Voltage Output • Designing a Double-Precision DAC • Building Programmable Current Source • Serial Interface Communication Times • Software I2C Interface Reset Sequence • Power Supply Considerations • Layout Considerations © 2011 Microchip Technology Inc. MCP4706/4716/4726 8.3.1 DC SET POINT OR CALIBRATION A common application digitally-controlled set point and/or calibration of variable parameters, such as sensor offset or slope ...

Page 66

... TRIP R 23 and R allow the gain to be selected shift the DAC's output to a selected 4 , instead OA OUT – Digitally-Controlled Bipolar AND V OUT OA+ O CALCULATIONS DAC Register Value • G • REF • R OUT • • OA © 2011 Microchip Technology Inc ...

Page 67

... R 2.05V + 0.5 4.096V 4 ----------------------- - = ------------------------------------------------------- ⋅ 1.5 4.096V kΩ, then kΩ Figure 8-6 (C1 = 0.1uF) © 2011 Microchip Technology Inc. MCP4706/4716/4726 Optional illustrates how V V REF DD MCP4726 2 I C™ 2-wire FIGURE 8-6: Selectable Gain and Offset. EQUATION 8- OUT REF OA+ value REF V ...

Page 68

... ---- β OUT I = -------------- - L R sense β = where FIGURE 8-8: Source OUT V – CC shows an example of building is, the less power dissipated SENSE REF V DD Load OUT – SENSE β × ------------ - β Common-Emitter Current Gain. Digitally-Controlled Current © 2011 Microchip Technology Inc. ...

Page 69

... Configuration Bits N.A. Read N.A. N.A. Note 1: Only the volatile PD1:PD0 bits of the Configuration bits are written. 2: Includes the Start or Stop bits. © 2011 Microchip Technology Inc. MCP4706/4716/4726 # of Writes EEPROM Serial Memory? Command Time (uS) Interface (2) bits 100kHz400kHz3.4MHz100kHz 400kHz 3.4MHz No No ...

Page 70

... The Stop bit terminates the current I MCP47X6 waits to detect the next Start condition. This sequence does not effect any other I which may be on the bus, as they should disregard this as an invalid command bus activity. The 2 C devices © 2011 Microchip Technology Inc. ...

Page 71

... SCL V SDA REF V OUT V SS FIGURE 8-10: Typical Microcontroller Connections. © 2011 Microchip Technology Inc. MCP4706/4716/4726 8.10.2 LAYOUT CONSIDERATIONS Several layout considerations may be applicable to your application. These may include: • Noise • PCB Area Requirements 8.10.2.1 Noise Inductively-coupled AC transients and digital switching noise can degrade the input and output signal integrity, potentially masking the MCP47X6’ ...

Page 72

... MCP4706/4716/4726 NOTES: DS22272A-page 72 © 2011 Microchip Technology Inc. ...

Page 73

... Note 1: Requires a PICDEM Demo board. See the User’s Guide for additional information and requirements. 2: Requires a PICkit Serial Analyzer. See the User’s Guide for additional information and requirements. 3: This board is currently in the manufacturing cycle, and should be available by end of March 2011. © 2011 Microchip Technology Inc. MCP4706/4716/4726 Table 9-1 ...

Page 74

... TABLE 9-2: TECHNICAL DOCUMENTATION Application Title Note Number AN1326 Using DAC for LDMOS Amplifier Bias Control Applications — Signal Chain Design Guide — Analog Solutions for Automotive Applications Design Guide DS22272A-page 74 Notes, shows Literature # DS01326 DS21825 DS01005 © 2011 Microchip Technology Inc. ...

Page 75

... Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. © 2011 Microchip Technology Inc. MCP4706/4716/4726 Example DC25 Code ...

Page 76

... MCP4706/4716/4726 /HDG 3ODVWLF 6PDOO 2XWOLQH 7UDQVLVWRU &+ >627@ 1RWH N PIN LASER MARK 1RWHV DS22272A-page φ © 2011 Microchip Technology Inc. ...

Page 77

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging © 2011 Microchip Technology Inc. MCP4706/4716/4726 DS22272A-page 77 ...

Page 78

... MCP4706/4716/4726 Note: DS22272A-page 78 © 2011 Microchip Technology Inc. ...

Page 79

... Note: © 2011 Microchip Technology Inc. MCP4706/4716/4726 DS22272A-page 79 ...

Page 80

... MCP4706/4716/4726 Note: DS22272A-page 80 © 2011 Microchip Technology Inc. ...

Page 81

... APPENDIX A: REVISION HISTORY Revision A (February 2011) • Original Release of this Document. © 2011 Microchip Technology Inc. MCP4706/4716/4726 DS22272A-page 81 ...

Page 82

... MCP4706/4716/4726 NOTES: DS22272A-page 82 © 2011 Microchip Technology Inc. ...

Page 83

... Tape and Reel Temperature Range -40°C to +125°C Package Plastic Small Outline Transistor (SOT-23-6), 6-lead MA = Plastic Dual Flat, No Lead Package (2x2 DFN), 6-lead © 2011 Microchip Technology Inc. MCP4706/4716/4726 Examples: X /XX a) MCP4706A0T-E/CH: 8-bit V Temperature Package Range b) MCP4706A6T-E/CH: 8-bit V c) MCP4706A0T-E/MA: 8-bit V ...

Page 84

... MCP4706/4716/4726 NOTES: DS22272A-page 84 © 2011 Microchip Technology Inc. ...

Page 85

... PICtail, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, UniWinDriver, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

Page 86

... Philippines - Manila Tel: 63-2-634-9065 Fax: 63-2-634-9069 Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan - Hsin Chu Tel: 886-3-6578-300 Fax: 886-3-6578-370 Taiwan - Kaohsiung Tel: 886-7-213-7830 Fax: 886-7-330-9305 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2011 Microchip Technology Inc. 08/04/10 ...

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