AD5291BRUZ-50-RL7

AD5291BRUZ-50-RL7 Datasheet

AD5291/AD5292

Part	Datasheet
AD5291BRUZ-50-RL7	AD5291BRUZ-50-RL7 (pdf)

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Data Sheet 256-/1024-Position, Digital Potentiometers with Maximum ±1% R-Tolerance Error and 20-TP Memory AD5291/AD5292 Single-channel, 256-/1024-position resolution 20 50 and 100 nominal resistance Maximum ±1% nominal resistor tolerance error resistor performance mode 20-times programmable wiper memory Rheostat mode temperature coefficient 35 ppm/°C Voltage divider temperature coefficient 5 ppm/°C +9 V to +33 V single-supply operation ±9 V to V dual-supply operation SPI-compatible serial interface Wiper setting readback Power-on refreshed from 20-TP memory Mechanical potentiometer replacement Instrumentation gain and offset adjustment Programmable voltage-to-current conversion Programmable filters, delays, and time constants Programmable power supply Low resolution DAC replacement Sensor calibration VLOGIC SCLK SYNC DIN SDO RDY FUNCTIONAL BLOCK DIAGRAM RESET POWER-ON RESET AD5291/ AD5292 RDAC REGISTER SERIAL DATA INTERFACE MEMORY BLOCK EXT_CAP GND Figure 07674-001 The AD5291 and AD5292 are single-channel, 256-/1024position digital potentiometers1 that combine industry leading variable resistor performance with nonvolatile memory NVM in a compact package. These devices are capable of operating across a wide voltage range, supporting both dual supply operation at V to V and single supply operation at +21 V to +33 V, while ensuring less than 1% end-to-end resistor tolerance error and offering 20-time programmable 20-TP memory. The guaranteed industry leading low resistor tolerance error feature simplifies open-loop applications as well as precision calibration and tolerance matching applications. The AD5291 and AD5292 device wiper settings are controllable through the SPI digital interface. Unlimited adjustments are allowed before programming the resistance value into the 20-TP memory. The AD5291 and AD5292 do not require any external voltage supply to facilitate fuse blow, and there are 20 opportunities for permanent programming. During 20-TP activation, a permanent blow fuse command freezes the wiper position analogous to placing epoxy on a mechanical trimmer . The AD5291 and AD5292 are available in a compact 14-lead TSSOP package. The part is guaranteed to operate over the extended industrial temperature range of −40°C to +105°C. 1 The terms digital potentiometer and RDAC are used interchangeably. Document Feedback 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. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel Analog Devices, Inc. All rights reserved. Technical Support AD5291/AD5292 TABLE OF CONTENTS Electrical 3 Resistor Performance Mode Code Range 4 Electrical 6 Resistor Performance Mode Code Range 7 Interface Timing Specifications 8 Absolute Maximum 10 Thermal Resistance 10 ESD 10 Pin Configuration and Function Descriptions........................... 11 Typical Performance Characteristics 12 Test 21 Theory of Operation 22 Serial Data 22 Shift Register 22 RDAC 22 Data Sheet 20-TP Memory 23 Write Protection 23 Basic Operation 24 20-TP Readback and Spare Memory Status............................ 24 Shutdown Mode 24 Resistor Performance 25 Reset 25 SDO Pin and Daisy-Chain Operation 25 RDAC 25 Programming the Variable 26 Programming the Potentiometer Divider 26 EXT_CAP 27 Terminal Voltage Operating Range 27 Applications Information 28 High Voltage 28 Programmable Voltage Source with Boosted Output 28 High Accuracy DAC 28 Variable Gain Instrumentation Amplifier 28 Audio Volume Control 29 Outline Dimensions 30 Ordering Guide 30 0 Initial Version Data Sheet AD5291/AD5292 SPECIFICATIONS ELECTRICAL VDD = 21 V to 33 V, VSS = 0 V VDD = V to V, VSS = V to V VLOGIC = V to V, VA = VDD, VB = VSS, −40°C < TA < +105°C, unless otherwise noted. Table Parameter DC MODE Resolution Resistor Differential Nonlinearity2 Resistor Integral Nonlinearity2 Nominal Resistor Tolerance R-Perf Mode 3 Nominal Resistor Tolerance Normal Mode Resistance Temperature Coefficient4 Wiper Resistance DC DIVIDER MODE Resolution Differential Nonlinearity5 Integral Nonlinearity5 Voltage Divider Temperature Coefficient4 Full-Scale Error Zero-Scale Error RESISTOR TERMINALS Terminal Voltage Range6 Capacitance A, Capacitance B4 N R-DNL R-INL x 106 RW N DNL INL x 106 VWFSE VWZSE VA, VB, VW CA, CB Capacitance W4 Common-Mode Leakage Current4 DIGITAL INPUTS Input Logic High4 Input Logic Low4 Input Current Input Capacitance4 DIGITAL OUTPUTS SDO and RDY Output High Voltage4 Output Low Voltage4 Three-State Leakage Current Output Capacitance4 POWER SUPPLIES Single-Supply Power Range Dual-Supply Power Range Positive Supply Current Negative Supply Current Logic Supply Range Logic Supply Current OTP Store Current4, 7 OTP Read Current4, 8 Power Dissipation9 Power Supply Rejection Ratio VIH VIL IIL CIL VOH VOL VDD/VSS IDD ISS VLOGIC ILOGIC ILOGIC_PROG ILOGIC_FUSE_READ PDISS PSRR Conditions RWB, VA = NC See Table 2, Table 3 Code = full-scale See Figure 38 Code= zero scale Code = half-scale See Figure 41 Code = full scale Code = zero scale f = 1 MHz, measured to GND, code = half-scale f = 1 MHz, measured to GND, code = half-scale VA = VB = VW JEDEC compliant VLOGIC = V to V VLOGIC = V to V VIN = 0 V or VLOGIC RPULL_UP = kΩ to VLOGIC RPULL_UP = kΩ to VLOGIC VSS = 0 V VDD/VSS = V VDD/VSS = V VLOGIC = 5 V VIH = 5 V or VIL = GND VIH = 5 V or VIL = GND VIH = 5 V or VIL = GND VIH = 5 V or VIL = GND = ±15 V ± 10% RAB = 20 RAB = 50 RAB = 100 Typ1 Max −1 −1 −1 Unit Bits LSB % % ppm/°C Bits ppm/°C −2 VLOGIC − ORDERING GUIDE Model1 AD5291BRUZ-20 AD5291BRUZ-20-RL7 AD5291BRUZ-50 AD5291BRUZ-50-RL7 AD5291BRUZ-100 AD5291BRUZ-100-RL7 AD5292BRUZ-20 AD5292BRUZ-20-RL7 AD5292BRUZ-50 AD5292BRUZ-50-RL7 AD5292BRUZ-100 AD5292BRUZ-100-RL7 EVAL-AD5292EBZ 1 Z = RoHS Compliant Part. RAB 20 50 100 20 50 100 Resolution 256 1,024 1,024 1,024 1,024 1,024 1,024 Memory 20-TP 20-TP 20-TP 20-TP 20-TP 20-TP 20-TP 20-TP 20-TP 20-TP 20-TP 20-TP Temperature Range −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C Package Description 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP Evaluation Board Package Option RU-14 RU-14 RU-14 RU-14 RU-14 RU-14 RU-14 RU-14 RU-14 RU-14 RU-14 RU-14 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D07674-0-12/14 E

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Data Sheet
256-/1024-Position, Digital Potentiometers with Maximum ±1% R-Tolerance Error and 20-TP Memory

AD5291/AD5292

Single-channel, 256-/1024-position resolution 20 50 and 100 nominal resistance Maximum ±1% nominal resistor tolerance error resistor
performance mode 20-times programmable wiper memory Rheostat mode temperature coefficient 35 ppm/°C Voltage divider temperature coefficient 5 ppm/°C +9 V to +33 V single-supply operation ±9 V to V dual-supply operation SPI-compatible serial interface Wiper setting readback Power-on refreshed from 20-TP memory

Mechanical potentiometer replacement Instrumentation gain and offset adjustment Programmable voltage-to-current conversion Programmable filters, delays, and time constants Programmable power supply Low resolution DAC replacement Sensor calibration

VLOGIC SCLK SYNC DIN SDO RDY

FUNCTIONAL BLOCK DIAGRAM

RESET

POWER-ON RESET

AD5291/ AD5292

RDAC

REGISTER

SERIAL DATA

INTERFACE

MEMORY

BLOCK

EXT_CAP GND

Figure
07674-001

The AD5291 and AD5292 are single-channel, 256-/1024position digital potentiometers1 that combine industry leading variable resistor performance with nonvolatile memory NVM in a compact package. These devices are capable of operating across a wide voltage range, supporting both dual supply operation at V to V and single supply operation at +21 V to +33 V, while ensuring less than 1% end-to-end resistor tolerance error and offering 20-time programmable 20-TP memory.

The guaranteed industry leading low resistor tolerance error feature simplifies open-loop applications as well as precision calibration and tolerance matching applications.

The AD5291 and AD5292 device wiper settings are controllable through the SPI digital interface. Unlimited adjustments are allowed before programming the resistance value into the 20-TP memory. The AD5291 and AD5292 do not require any external voltage supply to facilitate fuse blow, and there are 20 opportunities for permanent programming. During 20-TP activation, a permanent blow fuse command freezes the wiper position analogous to placing epoxy on a mechanical trimmer .

The AD5291 and AD5292 are available in a compact 14-lead TSSOP package. The part is guaranteed to operate over the extended industrial temperature range of −40°C to +105°C.
1 The terms digital potentiometer and RDAC are used interchangeably.

Document Feedback

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.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel Analog Devices, Inc. All rights reserved.

Technical Support

AD5291/AD5292

TABLE OF CONTENTS

Electrical 3 Resistor Performance Mode Code Range 4 Electrical 6 Resistor Performance Mode Code Range 7 Interface Timing Specifications 8 Absolute Maximum 10 Thermal Resistance 10 ESD 10 Pin Configuration and Function Descriptions........................... 11 Typical Performance Characteristics 12 Test 21 Theory of Operation 22 Serial Data 22 Shift Register 22 RDAC 22

Data Sheet
20-TP Memory 23 Write Protection 23 Basic Operation 24 20-TP Readback and Spare Memory Status............................ 24 Shutdown Mode 24 Resistor Performance 25 Reset 25 SDO Pin and Daisy-Chain Operation 25 RDAC 25 Programming the Variable 26 Programming the Potentiometer Divider 26 EXT_CAP 27 Terminal Voltage Operating Range 27 Applications Information 28 High Voltage 28 Programmable Voltage Source with Boosted Output 28 High Accuracy DAC 28 Variable Gain Instrumentation Amplifier 28 Audio Volume Control 29 Outline Dimensions 30 Ordering Guide 30
0 Initial Version

Data Sheet

AD5291/AD5292

SPECIFICATIONS

ELECTRICAL

VDD = 21 V to 33 V, VSS = 0 V VDD = V to V, VSS = V to V VLOGIC = V to V, VA = VDD, VB = VSS, −40°C < TA < +105°C, unless otherwise noted.

Table

Parameter

DC MODE Resolution Resistor Differential Nonlinearity2 Resistor Integral Nonlinearity2 Nominal Resistor Tolerance R-Perf Mode 3 Nominal Resistor Tolerance Normal Mode Resistance Temperature Coefficient4 Wiper Resistance

DC DIVIDER MODE Resolution Differential Nonlinearity5 Integral Nonlinearity5 Voltage Divider Temperature Coefficient4 Full-Scale Error Zero-Scale Error

RESISTOR TERMINALS Terminal Voltage Range6 Capacitance A, Capacitance B4

N R-DNL R-INL x 106 RW

N DNL INL x 106 VWFSE VWZSE

VA, VB, VW CA, CB

Capacitance W4

Common-Mode Leakage Current4 DIGITAL INPUTS

Input Logic High4 Input Logic Low4 Input Current Input Capacitance4 DIGITAL OUTPUTS SDO and RDY Output High Voltage4 Output Low Voltage4 Three-State Leakage Current Output Capacitance4 POWER SUPPLIES Single-Supply Power Range Dual-Supply Power Range Positive Supply Current Negative Supply Current Logic Supply Range Logic Supply Current OTP Store Current4, 7 OTP Read Current4, 8 Power Dissipation9 Power Supply Rejection Ratio

VIH VIL IIL CIL

VOH VOL

VDD/VSS IDD ISS VLOGIC ILOGIC ILOGIC_PROG ILOGIC_FUSE_READ PDISS PSRR

Conditions

RWB, VA = NC

See Table 2, Table 3

Code = full-scale See Figure 38 Code= zero scale

Code = half-scale See Figure 41 Code = full scale Code = zero scale
f = 1 MHz, measured to GND, code = half-scale f = 1 MHz, measured to GND, code = half-scale VA = VB = VW JEDEC compliant VLOGIC = V to V VLOGIC = V to V VIN = 0 V or VLOGIC

RPULL_UP = kΩ to VLOGIC RPULL_UP = kΩ to VLOGIC

VSS = 0 V

VDD/VSS = V VDD/VSS = V

VLOGIC = 5 V VIH = 5 V or VIL = GND VIH = 5 V or VIL = GND VIH = 5 V or VIL = GND VIH = 5 V or VIL = GND = ±15 V ± 10%

RAB = 20 RAB = 50 RAB = 100

Typ1 Max
−1
−1
−1

Unit

Bits LSB % % ppm/°C

Bits
ppm/°C
−2

VLOGIC −
ORDERING GUIDE

Model1 AD5291BRUZ-20 AD5291BRUZ-20-RL7 AD5291BRUZ-50 AD5291BRUZ-50-RL7 AD5291BRUZ-100 AD5291BRUZ-100-RL7 AD5292BRUZ-20 AD5292BRUZ-20-RL7 AD5292BRUZ-50 AD5292BRUZ-50-RL7 AD5292BRUZ-100 AD5292BRUZ-100-RL7 EVAL-AD5292EBZ
1 Z = RoHS Compliant Part.

RAB 20 50 100 20 50 100

Resolution 256 1,024 1,024 1,024 1,024 1,024 1,024

Memory 20-TP 20-TP 20-TP 20-TP 20-TP 20-TP 20-TP 20-TP 20-TP 20-TP 20-TP 20-TP

Temperature Range −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C −40°C to +105°C

Package Description 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP 14-Lead TSSOP Evaluation Board

Package Option RU-14 RU-14 RU-14 RU-14 RU-14 RU-14 RU-14 RU-14 RU-14 RU-14 RU-14 RU-14

Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.

D07674-0-12/14 E

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Datasheet ID: AD5291BRUZ-50-RL7 517702