AD5667 Analog Devices, AD5667 Datasheet

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AD5667

Manufacturer Part Number
AD5667
Description
Manufacturer
Analog Devices
Datasheet

Specifications of AD5667

Resolution (bits)
16bit
Dac Update Rate
250kSPS
Dac Settling Time
4µs
Max Pos Supply (v)
+5.5V
Single-supply
Yes
Dac Type
Voltage Out
Dac Input Format
I2C/Ser 2-wire,Ser

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AD5667RBCPZ
Manufacturer:
Analog Devices Inc
Quantity:
135
Part Number:
AD5667RBCPZ-R2
Manufacturer:
ADI
Quantity:
461
Part Number:
AD5667RBCPZ-REEL7
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
AD5667RBRMZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
AD5667RBRMZ-1REEL
Manufacturer:
TI
Quantity:
3 000
FEATURES
Low power, smallest pin-compatible, dual nanoDACs
AD5627R/AD5647R/AD5667R
AD5627/AD5667
3 mm x 3 mm LFCSP and 10-lead MSOP
2.7 V to 5.5 V power supply
Guaranteed monotonic by design
Power-on reset to zero scale
Per channel power-down
Hardware LDAC and CLR functions
I
APPLICATIONS
Process control
Data acquisition systems
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
Programmable attenuators
GENERAL DESCRIPTION
The AD5627R/AD5647R/AD5667R, AD5627/AD5667
members of the nanoDAC family are low power, dual, 12-, 14-,
16-bit buffered voltage-out DACs with/without on-chip
reference. All devices operate from a single 2.7 V to 5.5 V
supply, are guaranteed monotonic by design, and have an I
compatible serial interface.
The AD5627R/AD5647R/AD5667R have an on-chip reference.
The AD56x7RBCPZ have a 1.25 V, 5 ppm/°C reference, giving a
full-scale output range of 2.5 V; the AD56x7RBRMZ have a
2.5 V, 5 ppm/°C reference, giving a full-scale output range of 5
V. The on-chip reference is off at power-up, allowing the use of
an external reference. The internal reference is enabled via a
software write. The AD5667 and AD5627 require an external
reference voltage to set the output range of the DAC.
The AD56x7R/AD56x7 incorporate a power-on reset circuit
that ensures the DAC output powers up to 0 V, and remains
there until a valid write takes place. The part contains a per-
channel power-down feature that reduces the current
consumption of the device to 480 nA at 5 V and provides
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
2
C-compatible serial interface supports standard (100 kHz),
fast (400 kHz), and high speed (3.4 MHz) modes
12-/14-/16-bit
On-chip 1.25 V/2.5 V, 5 ppm/°C reference
12-/16-bit
External reference only
AD5627R/AD5647R/AD5667R, AD5627/AD5667
5 ppm/°C On-Chip Reference, I
2
C-
Dual, 12-/14-/16-Bit nanoDACs
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
ADDR
ADDR
software-selectable output loads while in power-down mode.
The low power consumption of this part in normal operation
makes it ideally suited to portable battery-operated equipment.
The on-chip precision output amplifier enables rail-to-rail
output swing.
The AD56x7R/AD56x7 use a 2-wire I
interface that operates in standard (100 kHz), fast (400 kHz),
and high speed (3.4 MHz) modes.
Table 1. Related Devices
Part No.
AD5663
AD5623R/AD5643R/AD5663R
AD5625R/AD5645R/AD5665R,
AD5625/AD5665
SDA
SDA
SCL
SCL
AD5627/AD5667
AD5627R/AD5647R/AD5667R
LDAC CLR
LDAC CLR
FUNCTIONAL BLOCK DIAGRAMS
Figure 1. AD5627R/AD5647R/AD5667R
V
V
DD
DD
REGISTER
REGISTER
POWER-ON
REGISTER
REGISTER
POWER-ON
INPUT
INPUT
RESET
INPUT
INPUT
RESET
Figure 2. AD5627/AD5667
©2007 Analog Devices, Inc. All rights reserved.
REGISTER
REGISTER
REGISTER
REGISTER
GND
GND
DAC
DAC
DAC
DAC
Description
2.7 V to 5.5 V, dual 16-bit DAC,
external reference, SPI® interface
2.7 V to 5.5 V, dual 12-, 14-, 16-bit
DACs, internal reference,
SPI interface
2.7 V to 5.5 V, quad 12-, 14-, 16-bit
DACs, with/without internal
reference, I
V
2
2
REFIN
C-compatible serial
C
STRING
STRING
POWER-DOWN
STRING
STRING
POWER-DOWN
DAC A
DAC B
V
DAC A
DAC B
REFIN
/V
®
2
LOGIC
LOGIC
REFOUT
C interface
1.25V/2.5V REF
Interface
BUFFER
BUFFER
BUFFER
BUFFER
www.analog.com
®
with
V
V
V
V
OUT
OUT
OUT
OUT
A
B
A
B

Related parts for AD5667

AD5667 Summary of contents

Page 1

... V, 5 ppm/°C reference, giving a full-scale output range The on-chip reference is off at power-up, allowing the use of an external reference. The internal reference is enabled via a software write. The AD5667 and AD5627 require an external reference voltage to set the output range of the DAC. The AD56x7R/AD56x7 incorporate a power-on reset circuit that ensures the DAC output powers and remains there until a valid write takes place ...

Page 2

... AD5627R/AD5647R/AD5667R, AD5627/AD5667 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagrams............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 AC Characteristics........................................................................ Timing Specifications............................................................ 6 Absolute Maximum Ratings............................................................ 8 ESD Caution.................................................................................. 8 Pin Configuration and Function Descriptions............................. 9 Typical Performance Characteristics ........................................... 10 Terminology .................................................................................... 18 Theory of Operation ...................................................................... 20 D/A Section................................................................................. 20 Resistor String ............................................................................. 20 Output Amplifier........................................................................ 20 Internal reference ...

Page 3

... Reference Current Reference Input Range Reference Input Impedance REFERENCE OUTPUT (LFCSP_WD PACKAGE) Output Voltage 3 Reference TC Output Impedance REFERENCE OUTPUT (MSOP PACKAGE) Output Voltage 3 Reference TC Output Impedance AD5627R/AD5647R/AD5667R, AD5627/AD5667 = 200 pF to GND all specifications T L REFIN DD Min Typ Max Unit 16 Bits ±8 ± ...

Page 4

... Power-Down Modes Temperature range: B grade: −40°C to +105°C. 2 Linearity calculated using a reduced code range: AD5567R/AD5667 (Code 512 to Code 65,024); AD5647R (Code 128 to Code 16,256); AD5627R/AD5627 (Code 32 to Code 4064). Output unloaded. 3 Guaranteed by design and characterization, not production tested. 4 Interface inactive ...

Page 5

... Total Harmonic Distortion Output Noise Spectral Density Output Noise 1 Guaranteed by design and characterization, not production tested. 2 See the Terminology section. 3 Temperature range is −40°C to +105°C, typical @ 25°C. AD5627R/AD5647R/AD5667R, AD5627/AD5667 = 200 pF to GND all specifications T L REFIN DD Min Typ Max ...

Page 6

... AD5627R/AD5647R/AD5667R, AD5627/AD5667 TIMING SPECIFICATIONS 5.5 V; all specifications T DD Table 4. 2 Parameter Conditions 3 f Standard mode SCL Fast mode High speed mode 100 pF B High speed mode 400 Standard mode 1 Fast mode High speed mode 100 pF B High speed mode, C ...

Page 7

... Fast mode SP High speed mode 1 See Figure 3. High speed mode timing specification applies only to the AD5627RBRMZ-2/AD5627BRMZ-2REEL7 and AD5667RBRMZ-2/AD5667BRMZ-2REEL7 refers to the capacitance on the bus line. 3 The SDA and SCL timing is measured with the input filters enabled. Switching off the input filters improves the transfer rate but has a negative effect on EMC behavior of the part ...

Page 8

... AD5627R/AD5647R/AD5667R, AD5627/AD5667 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 5. Parameter V to GND GND OUT GND REFIN REFOUT Digital Input Voltage to GND Operating Temperature Range, Industrial Storage Temperature Range Junction Temperature (T maximum) J Power Dissipation θ Thermal Impedance JA LFCSP_WD Package (4-Layer Board) ...

Page 9

... GND 3 8 LDAC 4 7 TOP VIEW (Not to Scale) CLR 5 6 EXPOSED PAD TIED TO GND ON LFCSP PACKAGE. Figure 4. AD5627/AD5667 Pin Configuration Table 6. Pin Function Descriptions Pin No. Mnemonic Description Analog Output Voltage from DAC A. The output amplifier has rail-to-rail operation. OUT Analog Output Voltage from DAC B ...

Page 10

... Rev Page REF T = 25° 10k 20k 30k 40k 50k CODE Figure 9. AD5667 DNL, External Reference REF T = 25° 2500 5000 7500 10000 12500 CODE Figure 10. DNL AD5647R, External Reference ...

Page 11

... 2.5V REFOUT T = 25° –2 –4 –6 –8 –10 CODE Figure 12. AD5667R INL, 2.5 V Internal Reference 2.5V REFOUT 25° –1 –2 –3 –4 CODE Figure 13. AD5647R INL, 2.5 V Internal Reference 1 2.5V 0.8 REFOUT T = 25° ...

Page 12

... Rev Page 1.25V REFOUT T = 25°C A CODE Figure 21. AD5667R DNL,1.25 V Internal Reference 1.25V REFOUT T = 25°C A CODE Figure 22. AD5647R DNL,1.25 V Internal Reference 1.25V REFOUT T = 25° 500 ...

Page 13

... MAX DNL 0 –2 –4 –6 –8 2.7 3.2 3.7 4.2 4.7 V (V) DD Figure 26. INL and DNL Error vs. Supply AD5627R/AD5647R/AD5667R, AD5627/AD5667 0 –0.02 MAX INL –0.04 –0.06 –0.08 –0.10 MIN DNL –0.12 –0.14 –0.16 MIN INL –0.18 –0. –40 Figure 27. Gain Error and Full-Scale Error vs. Temperature 1 ...

Page 14

... AD5627R/AD5647R/AD5667R, AD5627/AD5667 1 25°C A 0.5 ZERO-SCALE ERROR 0 –0.5 –1.0 –1.5 –2.0 –2.5 2.7 3.2 3.7 4.2 V (V) DD Figure 30. Zero-Scale Error and Offset Error vs. Supply 0.30 0.32 0.34 0.36 0.38 I (mA) DD Figure 31. I Histogram with External Reference 1.25V REFOUT V I (mA) DD Figure 32. I Histogram with Internal Reference DD OFFSET ERROR 4 5.5V DD ...

Page 15

... 0.40 DD REFIN 0. REFIN 0.30 0.25 0.20 0.15 0.10 0.05 0 –40 – TEMPERATURE (°C) Figure 38. Supply Current vs. Temperature AD5627R/AD5647R/AD5667R, AD5627/AD5667 1 60512 CH1 2.0V 5 CH1 5.0V 80 100 CH3 5.0V Figure 41. Exiting Power-Down to Midscale Rev Page REF T = 25°C A FULL-SCALE CODE CHANGE 0x0000 TO 0xFFFF OUTPUT LOADED WITH 2kΩ ...

Page 16

... AD5627R/AD5647R/AD5667R, AD5627/AD5667 2.538 2.537 DD REF T = 25°C A 2.536 5ns/SAMPLE NUMBER 2.535 GLITCH IMPULSE = 9.494nV 2.534 1LSB CHANGE AROUND MIDSCALE (0x8000 TO 0x7FFF) 2.533 2.532 2.531 2.530 2.529 2.528 2.527 2.526 2.525 2.524 2.523 2.522 2.521 0 50 100 150 200 250 300 SAMPLE NUMBER Figure 42 ...

Page 17

... 25°C A –30 DAC LOADED WITH FULL SCALE ± 0.3V p-p REF –40 –50 –60 –70 –80 –90 –100 FREQUENCY (Hz) Figure 49. Total Harmonic Distortion AD5627R/AD5647R/AD5667R, AD5627/AD5667 –5 –10 –15 –20 –25 –30 –35 –40 ...

Page 18

... DAC register. Ideally, the output should The zero-code error is always positive in the AD5667R because the output of the DAC cannot go below 0 V due to a combination of the offset errors in the DAC and the output amplifier. Zero-code error is expressed in mV. ...

Page 19

... LDAC low while monitoring the output of the victim channel that is at midscale. The energy of the glitch is expressed in nV-s. AD5627R/AD5647R/AD5667R, AD5627/AD5667 Multiplying Bandwidth The multiplying bandwidth is a measure of the finite bandwidth of the amplifiers within the DAC. A sine wave on the reference (with full-scale code loaded to the DAC) appears on the output ...

Page 20

... When using the internal reference recommended that a 100 nF capacitor be placed between the reference output and GND for reference stability. EXTERNAL REFERENCE The AD5627/AD5667 require an external reference, which is applied at the V the use of an external reference if the application requires it. The default condition of the on-chip reference is off at power- up ...

Page 21

... DAC, which are acknowledged by the master, as shown in Figure 55. A stop condition follows. HIGH SPEED MODE The AD5627RBRMZ and the AD5667RBRMZ offer high speed 1 0 serial communication with a clock frequency of 3.4 MHz. See 1 1 the Ordering Guide for details. ...

Page 22

... SDA DB15 DB14 DB13 DB12 (CONTINUED) FAST MODE 1 SCL SDA START BY MASTER HS-MODE MASTER CODE Figure 56. Placing the AD5627RBRMZ-2/AD5667RBRMZ-2 in High Speed Mode R/W DB23 DB22 DB21 DB20 DB19 DB18 DB17 ACK. BY AD56x7 9 1 DB9 DB8 DB7 DB6 ACK ...

Page 23

... Power up/power down Reset LDAC register setup Internal reference setup (on/off ) AD5627R/AD5647R/AD5667R, AD5627/AD5667 Table 9. DAC Address Command LDAC FUNCTION The AD56x7R/AD56x7 DACs have double-buffered interfaces consisting of two banks of registers, input registers and DAC registers ...

Page 24

... BYTE DATA BYTE DATA BYTE A0 D15 D14 D13 D12 D11 D10 DAC DATA DATA HIGH BYTE Figure 59. AD5667R/AD5667 Input Shift Register (16-Bit DAC) A0 D13 D12 D11 D10 D9 D8 DAC DATA DATA HIGH BYTE Figure 60. AD5647R Input Shift Register (14-Bit DAC) A0 D11 ...

Page 25

... A1 DAC ADDRESS COMMAND (DON’T CARE) AD5627R/AD5647R/AD5667R, AD5627/AD5667 amplifier, as shown in Table 11. Bit DB1and Bit DB0 determine to which DAC or DACs the power-up/down command is applied. Setting one of these bits to 1 applies the power-up/down state defined by DB5 and DB4 to the corresponding DAC bit is 0, the state of the DAC is unchanged ...

Page 26

... AD5627R/AD5647R/AD5667R, AD5627/AD5667 POWER-ON RESET AND SOFTWARE RESET The AD56x7R/AD56x7 contain a power-on reset circuit that controls the output voltage during power-up. The device powers and the output remains powered up at this level until a valid write sequence is made to the DAC. This is useful in applications where it is important to know the state of the output of the DAC while the process of powering up ...

Page 27

... This is an output voltage range of ±5 V, with 0x0000 corre- sponding to a −5 V output, and 0xFFFF corresponding output. AD5627R/AD5647R/AD5667R, AD5627/AD5667 +5V 10µF REF195 is POWER SUPPLY BYPASSING AND GROUNDING When accuracy is important in a circuit helpful to carefully consider the power supply and ground return layout on the board ...

Page 28

... OUTLINE DIMENSIONS AD5627R/AD5647R/AD5667R, AD5627/AD5667 INDEX AREA 3.00 BSC SQ 1.50 BCS SQ 0.50 BSC TOP VIEW 0.50 0.40 0.80 MAX 0.30 0.80 0.55 TYP 0.75 0.05 MAX SIDE VIEW 0.70 0.02 NOM SEATING 0.30 0.20 REF PLANE 0.23 0.18 Figure 69. 10-Lead Lead Frame Chip Scale Package [LFCSP_WD Body, Very Very Thin, Dual Lead (CP-10-9) Dimensions shown in millimeters 3.10 3.00 2. 5.15 3.10 4.90 3.00 4.65 2. PIN 1 ...

Page 29

... AD5667RBRMZ-1REEL7 −40°C to +105°C 1 AD5667RBRMZ-2 −40°C to +105°C 1 AD5667RBRMZ-2REEL7 −40°C to +105°C 1 EVAL-AD5667REBZ Pb-free part. AD5627R/AD5647R/AD5667R, AD5627/AD5667 2 On-Chip Max I C Accuracy Reference Speed ±1 LSB INL None 400 kHz ±1 LSB INL None 400 kHz ± ...

Page 30

... AD5627R/AD5647R/AD5667R, AD5627/AD5667 NOTES Rev Page ...

Page 31

... NOTES AD5627R/AD5647R/AD5667R, AD5627/AD5667 Rev Page ...

Page 32

... AD5627R/AD5647R/AD5667R, AD5627/AD5667 NOTES 2 Purchase of licensed I C components of Analog Devices or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I 2 Rights to use these components system, provided that the system conforms to the I ©2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners ...

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