CAT5259集成電路（IC）的數(shù)字電位計規(guī)格書PDF中文資料

CAT5259屬于集成電路（IC）的數(shù)字電位計。由安森美半導(dǎo)體公司制造生產(chǎn)的CAT5259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(jī)械電位器或變阻器的可調(diào)節(jié)電阻，但通過電子信號而非機(jī)械輸入來進(jìn)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(yuǎn)程控制信號級模擬電路，而這些電路本來可能會使用機(jī)械電位器。

DESCRIPTION

The CAT5259 is four digitally programmable poten– tiometers (DPPs?) integrated with control logic and 16 bytes of NVRAM memory. Each DPP consists of a series of resistive elements connected between two externally accessible end points. The tap points between each resistive element are connected to the wiper outputs with CMOS switches.

FEATURES

■ Four linear taper digitally programmable potentiometers

■ 256 resistor taps per potentiometer

■ End to end resistance 50 k? or 100 k?

■ Potentiometer control and memory access via I2C interface

■ Low wiper resistance, typically 100 ?

■ Nonvolatile memory storage for up to four wiper settings for each potentiometer

■ Automatic recall of saved wiper settings at power up

■ 2.5 to 6.0 volt operation

■ Standby current less than 1 μA

■ 1,000,000 nonvolatile WRITE cycles

■ 100 year nonvolatile memory data retention

■ 24-lead SOIC and 24-lead TSSOP packages

■ Industrial temperature range