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

EVAL-AD5247DBZ属于开发板，套件，编程器 > 评估和演示板及套件。亚德诺半导体技术有限公司制造生产的EVAL-AD5247DBZ评估和演示板及套件该系列产品提供了一种方便的方法，在经过验证的实施环境中评估某些重点器件的性能或特性。评估方法通常有完善的文档说明，并且视乎具体情况由评估软件提供支持。产品通常由印刷电路板组成，板上已装有重点器件以及必要或有用的支持元器件，另外也可能包括其他组件，例如电缆或电源。对于数量特别多或类别独特的器件类别(如 ADC、DAC 和开关模式电源)，评估平台可组合为一个单独的产品系列。