DESCRIPTION

The CAT5126 is a digital programmable potentiometer. The wiper position is controlled with a simple 2-wire digital interface. This digital potentiometer is unique in that it has an optional onetime programmable feature that either sets the wiper’s position upon power-on to a user-defined value, or the wiper can be set and the interface also disabled to prevent further adjustment.

FEATURES

■ Wiper position stored after one-time nonvolatile programming

■ User-defined Power-On wiper position

■ 32-tap positions

■ Wiper position programmed through simple 2-wire serial interface

■ Low 0.35 µA (typ) static supply current

■ 2.5 V to 5.5 V single-supply operation

■ 10 kΩ, 50 kΩ, and 100 kΩ end-to-end resistances

■ 50 ppm/°C end-to-end temperature coefficient and 5 ppm/°C ratiometric temperature coefficient

■ TDFN 8-pad (2 x 3 mm) and MSOP 8-lead packages

APPLICATIONS

■ Mechanical potentiometer replacement

■ Products using one-time factory calibration

■ Contrast, brightness, volume controls

■ Programmable analog functions

CAT5126ZI-10-GT3属于集成电路（IC） > 数字电位计。安森美半导体公司制造生产的CAT5126ZI-10-GT3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。