AD5291集成电路（IC）的数字电位计规格书PDF中文资料

AD5291属于集成电路（IC）的数字电位计。由亚德诺半导体技术有限公司制造生产的AD5291数字电位计数字电位器是一系列集成电路器件，可提供类似于传统机械电位器或变阻器的可调节电阻，但通过电子信号而非机械输入来进行控制。虽然这些器件的电阻可耗散的电能相对有限，但其电子控制能力有助于小型化、自动化和远程控制信号级模拟电路，而这些电路本来可能会使用机械电位器。

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 kΩ, 50 kΩ, and 100 kΩ 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