AD5245集成电路（IC）的数字电位计规格书PDF中文资料

AD5245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AD5245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 AD5245 provides a compact 2.9 mm × 3 mm packaged solution for 256-position adjustment applications. These devices perform the same electronic adjustment function as mechanical potentiometers or variable resistors, with enhanced resolution, solid-state reliability, and superior low temperature coefficient performance.

FEATURES

256-position

End-to-end resistance 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ

Compact SOT-23-8 (2.9 mm × 3 mm) package

Fast settling time: tS = 5 µs typ on power-up

Full read/write of wiper register

Power-on preset to midscale

Extra package address decode pin AD0

Computer software replaces µC in factory programming applications

Single supply: 2.7 V to 5.5 V

Low temperature coefficient 45 ppm/°C

Low power: IDD = 8 µA

Wide operating temperature: –40°C to +125°C

Evaluation board available

APPLICATIONS

Mechanical potentiometer replacement in new designs

LCD panel VCOM adjustment

LCD panel brightness and contrast control

Transducer adjustment of pressure, temperature, position,

chemical, and optical sensors

RF amplifier biasing

Automotive electronics adjustment

Gain control and offset adjustment