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AD5231 Datasheet

Part Number AD5231
Manufacturers Analog Devices
Logo Analog Devices
Description 1024-Position Digital Potentiometer
Datasheet AD5231 DatasheetAD5231 Datasheet (PDF)

Data Sheet Nonvolatile Memory, 1024-Position Digital Potentiometer AD5231 02739-001 FEATURES 1024-position resolution Nonvolatile memory maintains wiper setting Power-on refresh with EEMEM setting EEMEM restore time: 140 µs typ Full monotonic operation 10 kΩ, 50 kΩ, and 100 kΩ terminal resistance Permanent memory write protection Wiper setting readback Predefined linear increment/decrement instructions Predefined ±6 dB/step log taper increment/decrement instructions SPI®-compatible serial int.

  AD5231   AD5231






Part Number AD5235
Manufacturers Analog Devices
Logo Analog Devices
Description Dual 1024-Position Digital Potentiometer
Datasheet AD5231 DatasheetAD5235 Datasheet (PDF)

Data Sheet Nonvolatile Memory, Dual 1024-Position Digital Potentiometer AD5235 FEATURES Dual-channel, 1024-position resolution 25 kΩ, 250 kΩ nominal resistance Maximum ±8% nominal resistor tolerance error Low temperature coefficient: 35 ppm/°C 2.7 V to 5 V single supply or ±2.5 V dual supply SPI-compatible serial interface Nonvolatile memory stores wiper settings Power-on refreshed with EEMEM settings Permanent memory write protection Resistance tolerance stored in EEMEM 26 bytes extra nonvola.

  AD5231   AD5231







Part Number AD5233
Manufacturers Analog Devices
Logo Analog Devices
Description Quad 64-Position Digital Potentiometer
Datasheet AD5231 DatasheetAD5233 Datasheet (PDF)

Nonvolatile Memory, Quad 64-Position Digital Potentiometer AD5233 FEATURES Nonvolatile memory stores wiper setting 4-channel independent programmable 64-position resolution Power-on refreshed with EEMEM settings EEMEM restore time: 140 μs typical Full monotonic operation 10 kΩ, 50 kΩ, and 100 kΩ terminal resistance Permanent memory write protection Wiper setting readback Predefined linear increment/decrement instructions Predefined ±6 dB/step log taper increment/decrement instructions SPI-compa.

  AD5231   AD5231







Part Number AD5232
Manufacturers Analog Devices
Logo Analog Devices
Description Dual 256-Position Digital Potentiometer
Datasheet AD5231 DatasheetAD5232 Datasheet (PDF)

Data Sheet Nonvolatile Memory, Dual 256-Position Digital Potentiometer AD5232 FEATURES Dual-channel, 256-position resolution 10 kΩ, 50 kΩ, and 100 kΩ nominal terminal resistance Nonvolatile memory maintenance of wiper settings Predefined linear increment/decrement instructions Predefined ±6 dB step log taper increment/decrement instructions SPI-compatible serial interface Wiper settings and EEMEM readback 3 V to 5 V single-supply operation ±2.5 V dual-supply operation 14 bytes of general-purpo.

  AD5231   AD5231







1024-Position Digital Potentiometer

Data Sheet Nonvolatile Memory, 1024-Position Digital Potentiometer AD5231 02739-001 FEATURES 1024-position resolution Nonvolatile memory maintains wiper setting Power-on refresh with EEMEM setting EEMEM restore time: 140 µs typ Full monotonic operation 10 kΩ, 50 kΩ, and 100 kΩ terminal resistance Permanent memory write protection Wiper setting readback Predefined linear increment/decrement instructions Predefined ±6 dB/step log taper increment/decrement instructions SPI®-compatible serial interface 3 V to 5 V single-supply or ±2.5 V dual-supply operation 28 bytes extra nonvolatile memory for user-defined data 100-year typical data retention, TA = 55°C APPLICATIONS Mechanical potentiometer replacement Instrumentation: gain, offset adjustment Programmable voltage to current conversion Programmable filters, delays, time constants Programmable power supply Low resolution DAC replacement Sensor calibration FUNCTIONAL BLOCK DIAGRAM CS CLK SDI ADDR DECODE SDI RDAC REGISTER AD5231 RDAC GND SERIAL INTERFACE EEMEM(0) VDD A W B SDO WP RDY PR SDO EEMEM CONTROL 28 BYTES USER EEMEM DIGITAL REGISTER EEMEM(1) Figure 1. 100 RWA 2 DIGITAL OUTOUT BUFFER RWB O1 O2 VSS 75 50 25 RWA (D), RWB (D); (% of Nominal RAB) GENERAL DESCRIPTION The AD5231 is a nonvolatile memory1, digitally controlled potentiometer2 with 1024-step resolution. The device performs the same electronic adjustment function as a mechanical potentiometer with enhanced resolution, solid state reliability, a.


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