AD5170BRM50屬于集成電路（IC）的數(shù)字電位計(jì)。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD5170BRM50數(shù)字電位計(jì)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(dòng)化和遠(yuǎn)程控制信號級模擬電路，而這些電路本來可能會(huì)使用機(jī)械電位器。

GENERAL DESCRIPTION

The AD5170 is a 256-position, two-time programmable, digital potentiometer1 that employs fuse link technology, giving users two opportunities to permanently program the resistance setting. For users who do not need to program the digital potentiometer setting in memory more than once, the OTP feature is a costeffective alternative to EEMEM.

FEATURES

256-position digital potentiometer

Two-time programmable (TTP) set-and-forget resistance

setting allows second-chance permanent programming

Unlimited adjustments prior to one-time programming

(OTP) activation

OTP overwrite allows dynamic adjustments with userdefined preset

End-to-end resistance: 2.5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ

Compact 10-lead MSOP: 3 mm × 4.9 mm package

Fast settling time: tS = 5 μs typical in power-up

Full read/write of wiper register

Power-on preset to midscale

Extra package address decode pins: AD0 and AD1

Single supply: 2.7 V to 5.5 V

Low temperature coefficient: 35 ppm/°C

Low power: IDD = 6 μA maximum

Wide operating temperature: ?40°C to +125°C

Evaluation board and software are available

Software replaces MicroConverter? in factory programming

applications

APPLICATIONS

Systems calibration

Electronics level setting

Mechanical trimmers replacement in new designs

Permanent factory PCB settings

Transducer adjustment of pressure, temperature, position,

chemical, and optical sensors

RF amplifier biasing

Automotive electronics adjustments

Gain control and offset adjustments