AD5227集成電路（IC）的數(shù)字電位計規(guī)格書PDF中文資料

AD5227屬于集成電路（IC）的數(shù)字電位計。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD5227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(diào)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。

GENERAL DESCRIPTION

The AD5227 is Analog Devices’ latest 64-step up/down control digital potentiometer1. This device performs the same electronic adjustment function as a 5 V potentiometer or variable resistor. Its simple 3-wire up/down interface allows manual switching or high speed digital control.

FEATURES

64-position digital potentiometer

10 kΩ, 50 kΩ, 100 kΩ end-to-end terminal resistance

Simple up/down digital or manual configurable control

Midscale preset

Low potentiometer mode tempco = 10 ppm/°C

Low rheostat mode tempco = 35 ppm/°C

Ultralow power, IDD = 0.4 μA typ and 3 μA max

Fast adjustment time, ts = 1 μs

Chip select enable multiple device operation

Low operating voltage, 2.7 V to 5.5 V

Automotive temperature range, ?40°C to +105°C

Compact thin SOT-23-8 (2.9 mm × 3 mm) Pb-free package

APPLICATIONS

Mechanical potentiometer and trimmer replacements

LCD backlight, contrast, and brightness controls

Portable electronics level adjustment

Programmable power supply

Digital trimmer replacements

Automatic closed-loop control