GENERAL DESCRIPTION

The AD5258 provides a compact, nonvolatile 3 mm × 4.9 mm packaged solution for 64-position adjustment applications. These devices perform the same electronic adjustment function as mechanical potentiometers1 or variable resistors, but with enhanced resolution and solid-state reliability.

FEATURES

Nonvolatile memory maintains wiper settings

64-position

Compact MSOP-10 (3mm × 4.9 mm) package

I

2

C?-compatible interface

VLOGIC pin provides increasedinterface flexibility

End-to-end resistance 1 k?, 10k?, 50k?, 100 k?

Resistance tolerance stored in EEPROM (0.1 accuracy)

Power-on EEPROM refresh time<1 ms

Software write protect command

Three-stateAddress Decode Pins AD0and AD1 allow 9 packages per bus

100-year typical dataretention at 55°C

Wide operating temperature ?40°C to+85°C

3 V to5V single supply

APPLICATIONS

LCD panel VCOMadjustment

LCD panel brightness and contrast control

Mechanical potentiometer replacement in new designs

Programmable power supplies

RF amplifier biasing

Automotive electronics adjustment

Gain control and offset adjustment

Fiber to the home systems

Electronics level settings

AD5258屬于集成電路（IC） > 數(shù)字電位計。亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD5258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。