GENERAL DESCRIPTION

The AD5291 and AD5292 are single-channel, 256-/1024-position 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 ±10.5 V to ±16.5 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.

FEATURES

Single-channel, 256-/1024-position resolution

20 k?, 50 k?, and 100 k? 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 ±16.5 V dual-supply operation

SPI-compatible serial interface

Wiper setting readback

Power-on refreshed from 20-TP memory

APPLICATIONS

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

AD5291BRUZ-20-RL7屬于集成電路（IC） > 數(shù)字電位計。亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD5291BRUZ-20-RL7數(shù)字電位計數(shù)字電位器是一系列集成電路器件，可提供類似于傳統(tǒng)機(jī)械電位器或變阻器的可調(diào)節(jié)電阻，但通過電子信號而非機(jī)械輸入來進(jìn)行控制。雖然這些器件的電阻可耗散的電能相對有限，但其電子控制能力有助于小型化、自動化和遠(yuǎn)程控制信號級模擬電路，而這些電路本來可能會使用機(jī)械電位器。