MCP3002-I/SN Microchip Technology, MCP3002-I/SN Datasheet

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MCP3002-I/SN

Manufacturer Part Number
MCP3002-I/SN
Description
IC ADC 10BIT 2.7V 2CH SPI 8-SOIC
Manufacturer
Microchip Technology
Datasheets

Specifications of MCP3002-I/SN

Package / Case
8-SOIC (0.154", 3.90mm Width)
Number Of Bits
10
Sampling Rate (per Second)
200k
Data Interface
Serial, SPI™
Number Of Converters
1
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Architecture
SAR
Conversion Rate
200 KSPs
Input Type
Voltage
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MCP3002-I/SN
Manufacturer:
MITSUBISHI
Quantity:
101
Part Number:
MCP3002-I/SN
Manufacturer:
MICROCHI
Quantity:
20 000
Features
• 10-bit resolution
• ±1 LSB maximum DNL
• ±1 LSB maximum INL
• Analog inputs programmable as single-ended or
• On-chip sample and hold
• SPI serial interface (modes 0,0 and 1,1)
• Single supply operation: 2.7V - 5.5V
• 200 ksps max sampling rate at V
• 75 ksps max sampling rate at V
• Low power CMOS technology:
• Industrial temp range: -40°C to +85°C
• 8-pin MSOP, PDIP, SOIC and TSSOP packages
Applications
• Sensor Interface
• Process Control
• Data Acquisition
• Battery Operated Systems
Functional Block Diagram
© 2008 Microchip Technology Inc.
pseudo-differential pairs
- 5 nA typical standby current, 2 µA maximum
- 550 µA maximum active current at 5V
CH0
CH1
Channel
Input
Mux
Sample
and
Hold
2.7V Dual Channel 10-Bit A/D Converter
CS/SHDN
Control Logic
DAC
Comparator
D
IN
CLK
DD
with SPI Serial Interface
DD
= 2.7V
= 5V
10-Bit SAR
Register
V
Shift
D
DD
OUT
V
SS
Description
The Microchip Technology Inc. MCP3002 is a
successive approximation 10-bit Analog-to-Digital
(A/D) Converter with on-board sample and hold
circuitry. The MCP3002 is programmable to provide a
single pseudo-differential input pair or dual single-
ended inputs. Differential Nonlinearity (DNL) and
Integral Nonlinearity (INL) are both specified at ±1 LSB.
Communication with the device is done using a simple
serial interface compatible with the SPI protocol. The
device is capable of conversion rates of up to 200 ksps
at 5V and 75 ksps at 2.7V. The MCP3002 device
operates over a broad voltage range (2.7V - 5.5V).
Low-current design permits operation with a typical
standby current of 5 nA and a typical active current of
375 µA.
The MCP3002 is offered in 8-pin MSOP, PDIP, TSSOP
and 150 mil SOIC packages.
Package Types
MSOP, PDIP, SOIC, TSSOP
CS/SHDN
MCP3002
CH0
CH1
V
SS
1
2
3
4
8
7
6
5
V
CLK
D
D
DS21294D-page 1
DD
OUT
IN
/V
REF

Related parts for MCP3002-I/SN

MCP3002-I/SN Summary of contents

Page 1

... Communication with the device is done using a simple serial interface compatible with the SPI protocol. The device is capable of conversion rates 200 ksps = and 75 ksps at 2.7V. The MCP3002 device operates over a broad voltage range (2.7V - 5.5V). Low-current design permits operation with a typical standby current and a typical active current of 375 µ ...

Page 2

... MCP3002 NOTES: DS21294D-page 2 © 2008 Microchip Technology Inc. ...

Page 3

... SS DD IN+ IN- — V +IN- DD IN- V -100 — V +100 SS SS — 0.001 ±1 R — 1K — SS — 20 — MCP3002 = 16*f , unless otherwise noted. SAMPLE UNITS CONDITIONS clock cycles clock cycles ksps ksps V = 2.7V DD bits LSB LSB No missing codes over temperature LSB LSB 0.1V to 4.9V@1 kHz ...

Page 4

... MCP3002 ELECTRICAL CHARACTERISTICS (CONTINUED) All parameters apply 5V -40°C to +85° Typical values apply for +25°C, unless otherwise noted PARAMETER SYM Digital Input/Output: Data Coding Format High Level Input Voltage Low Level Input Voltage High Level Output Voltage Low Level Output Voltage ...

Page 5

... Max Units T -40 — + -40 — + -65 — +150 A θ — 211 — JA θ — 89.5 — JA θ — 149.5 — JA θ — 139 — MSB OUT NULL BIT MCP3002 = GND. SS Conditions °C °C °C °C/W °C/W °C/W °C/W t CSH DIS LSB DS21294D-page 5 ...

Page 6

... MCP3002 Load circuit for 1.4V 3 kΩ Test Point D OUT Voltage Waveforms for OUT t R Voltage Waveforms for t CLK OUT FIGURE 1-2: Test Circuits. DS21294D-page 6 Load circuit for t Test Point D OUT , t Voltage Waveforms for CLK D OUT Voltage Waveforms for OUT Waveform 1* ...

Page 7

... DD 0 2.7V 0 SAMPLE 0.3 0.2 0.1 0.0 -0.1 -0.2 -0.3 -0.4 -0.5 75 100 -50 FIGURE 2-6: vs. Temperature (V MCP3002 , T = +25° 2.7V Positive INL Negative INL 100 Sample Rate (ksps) Integral Nonlinearity (INL) = 2.7V ksps 256 384 512 640 768 896 1024 Digital Code Integral Nonlinearity (INL ...

Page 8

... MCP3002 Note: Unless otherwise indicated 1.0 0.8 0.6 Positive INL 0.4 0.2 0.0 -0.2 -0.4 Negative INL -0.6 All points taken 200 ksps except SAMPLE -0 2.7V ksps DD SAMPLE -1.0 2.5 3.0 3.5 4.0 4.5 V (V) DD FIGURE 2-7: Integral Nonlinearity (INL) vs. V DD. ...

Page 9

... FIGURE 2-17: DD 0.8 0 ksps 0 SAMPLE 0.4 0.3 0.2 0.1 0.0 75 100 -50 FIGURE 2-18: Temperature. MCP3002 , T = +25° ksps Positive DNL Negative DNL - 100 Temperature (°C) Differential Nonlinearity = 2.7V 200 ksps except SAMPLE = 75 ksps SAMPLE 3.0 3.5 4.0 4.5 5 ...

Page 10

... MCP3002 Note: Unless otherwise indicated 2. ksps SAMPLE 200 ksps SAMPLE Input Frequency (kHz) FIGURE 2-19: Signal-to-Noise Ratio (SNR) vs. Input Frequency. 0 -10 - ksps -40 SAMPLE -50 -60 -70 - -90 SAMPLE -100 1 10 Input Frequency (kHz) FIGURE 2-20: Total Harmonic Distortion (THD) vs. Input Frequency. 10.0 9 ...

Page 11

... FIGURE 2-29: 600 = 75 ksps 500 V DD 400 f CLK 300 V 200 DD f CLK 100 0 -50 FIGURE 2-30: = 2.7V). DD MCP3002 , T = +25°C. SAMPLE A = 3.2 MHz CLK = 2.5V 1.2 MHz DD CLK 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6 ...

Page 12

... MCP3002 Note: Unless otherwise indicated 2.5 3.0 3.5 4.0 4.5 5 FIGURE 2-31: I vs. V DDS DD 100. 10.00 1.00 0.10 0.01 -50 - Temperature (°C) FIGURE 2-32: I vs. Temperature. DDS DS21294D-page 200 ksps 16* f SAMPLE CLK SAMPLE 2 1.8 DD 1.6 1.4 1.2 1.0 0.8 ...

Page 13

... The SPI port serial data input pin is used to clock in input channel configuration data. 3.5 Serial Data Output (D The SPI serial data output pin is used to shift out the results of the A/D conversion. Data will always change on the falling edge of each clock as the conversion takes place. MCP3002 Description ) IN ) OUT DS21294D-page 13 ...

Page 14

... MCP3002 NOTES: DS21294D-page 14 © 2008 Microchip Technology Inc. ...

Page 15

... Conversion rates of 200 ksps are possible on the MCP3002. See Section 6.2 “Maintaining Minimum Clock Speed” for information on minimum clock rates. Communication with the device is done using a 3-wire SPI compatible interface ...

Page 16

... MCP3002 V CHx PIN 7 pF Legend VA = signal source R = source impedance SS CHx = input channel pad C = input pin capacitance PIN V = threshold voltage leakage current at the pin LEAKAGE due to various junctions SS = sampling switch R = sampling switch resistor sample/hold capacitance SAMPLE FIGURE 4-1: Analog Input Model. 4.0 ...

Page 17

... LSB first after the word has been transmitted in the MSB first format. shows the configuration bits for the MCP3002. The device will begin to sample the analog input on the second rising edge of the clock, after the start bit has been received ...

Page 18

... After completing the data transfer, if further clocks are applied with CS low, the A/D Converter will output zeros indefinitely. See Figure 5 during this time, the bias current and the comparator powers down while the reference input DATA becomes a high-impedance node. FIGURE 5-1: Communication with the MCP3002 using MSB first format only SUCS CLK D IN HI-Z ...

Page 19

... Data stored into MCU receive register after transmission of first 8 bits X = Don’t Care Bits FIGURE 6-1: SPI Communication with the MCP3002 using 8-bit segments (Mode 0,0: SCLK idles low). © 2008 Microchip Technology Inc. As shown in Figure A/D Converter contains one leading zero before the start bit ...

Page 20

... Data stored into MCU receive register after transmission of first 8 bits X = Don’t Care Bits FIGURE 6-2: SPI Communication with the MCP3002 using 8-bit segments (Mode 1,1: SCLK idles high). 6.2 Maintaining Minimum Clock Speed When the MCP3002 initiates the sample period, charge is stored on the sample capacitor ...

Page 21

... A/D converters, refer to AN-688 “Layout Tips for 12-Bit A/D Converter Applications” Connection Device 4 Device 1 Device 3 Device 2 FIGURE 6-4: V traces arranged ‘Star’ configuration in order to reduce errors caused by current return paths. © 2008 Microchip Technology Inc. connections to MCP3002 DS21294D-page 21 ...

Page 22

... MCP3002 NOTES: DS21294D-page 22 © 2008 Microchip Technology Inc. ...

Page 23

... Microchip Technology Inc. MCP3002 Example: 3002I 819256 Example: MCP3002 I/P ^^256 e 3 0819 Example: MCP3002I ISN ^^0819 e 3 256 Example: 3002 I819 256 ) e 3 DS21294D-page 23 ...

Page 24

... MCP3002 /HDG 3ODVWLF 0LFUR 6PDOO 2XWOLQH 3DFNDJH 06 >0623@ 1RWH 1RWHV DS21294D-page 24 I © 2008 Microchip Technology Inc. φ ...

Page 25

... Microchip Technology Inc. PLO %RG\ >3',3@ MCP3002 DS21294D-page 25 ...

Page 26

... MCP3002 /HDG 3ODVWLF 6PDOO 2XWOLQH 61 ± 1DUURZ 1RWH 1RWHV DS21294D-page 26 PP %RG\ >62,&@ α φ β © 2008 Microchip Technology Inc. ...

Page 27

... Microchip Technology Inc. MCP3002 PP %RG\ >62,&@ DS21294D-page 27 ...

Page 28

... MCP3002 /HDG 3ODVWLF 7KLQ 6KULQN 6PDOO 2XWOLQH 67 ± 1RWH 1RWHV DS21294D-page 28 PP %RG\ >76623@ I © 2008 Microchip Technology Inc. φ ...

Page 29

... Updates to packaging outline drawings. Revision C (January 2007) The following is the list of modifications: 1. Updates to packaging outline drawings. Revision B (August 2001) The following is the list of modifications: 1. Undocumented changes. Revision A (February 2000) • Initial release of this document. © 2008 Microchip Technology Inc. MCP3002 DS21294D-page 29 ...

Page 30

... MCP3002 NOTES: DS21294D-page 30 © 2008 Microchip Technology Inc. ...

Page 31

... Plastic DIP (300 mil Body), 8-lead SN = Plastic SOIC (150 mil Body), 8-lead ST = Plastic TSSOP (4.4 mm), 8-lead © 2008 Microchip Technology Inc. /XX Examples: Package a) MCP3002-I/P: b) MCP3002-I/SN: c) MCP3002-I/ST: d) MCP3002-I/MS: (Industrial) MCP3002 . Industrial Temperature, 8LD PDIP package. Industrial Temperature, 8LD SOIC package. Industrial Temperature, 8LD TSSOP package ...

Page 32

... MCP3002 NOTES: DS21294D-page 32 © 2008 Microchip Technology Inc. ...

Page 33

... PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, 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 34

... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2008 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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