AD5247集成电路（IC）的数字电位计规格书PDF中文资料

AD5247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AD5247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 AD5247 provides a compact, 2 mm × 2.1 mm, packaged solution for 128-position adjustment applications. This device performs the same electronic adjustment function as a mechanical potentiometer or a variable resistor. Available in four different end-to-end resistance values (5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ), these low temperature coefficient devices are ideal for high accuracy and stability variable resistance adjustments.

FEATURES

128 positions

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

Ultracompact, SC70-6 (2 mm × 2.1 mm) package

I2C-compatible interface

Full read/write of wiper register

Power-on preset to midscale

Single-supply 2.7 V to 5.5 V

Rheostat mode temperature coefficient: 45 ppm/°C

Low power, IDD = 0.9 µA at 3.3 V typical

Wide operating temperature range: −40°C to +125°C

APPLICATIONS

Mechanical potentiometer replacement in new designs

Transducer adjustment of pressure, temperature, position, chemical, and optical sensors

RF amplifier-biasing

LCD brightness and contrast adjustment

Automotive electronics adjustment

Gain control and offset adjustment