CAT5126集成電路（IC）的數(shù)字電位計規(guī)格書PDF中文資料

CAT5126屬于集成電路（IC）的數(shù)字電位計。由安森美半導體公司制造生產的CAT5126數(shù)字電位計數(shù)字電位器是一系列集成電路器件，可提供類似于傳統(tǒng)機械電位器或變阻器的可調節(jié)電阻，但通過電子信號而非機械輸入來進行控制。雖然這些器件的電阻可耗散的電能相對有限，但其電子控制能力有助于小型化、自動化和遠程控制信號級模擬電路，而這些電路本來可能會使用機械電位器。

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 k?, 50 k?, and 100 k? 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