AD5115集成電路（IC）的數字電位計規(guī)格書PDF中文資料

AD5115屬于集成電路（IC）的數字電位計。由亞德諾半導體技術有限公司制造生產的AD5115數字電位計數字電位器是一系列集成電路器件，可提供類似于傳統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。

GENERAL DESCRIPTION

The AD5110/AD5112/AD5114 provide a nonvolatile solution for 128-/64-/32-position adjustment applications, offering guaranteed low resistor tolerance errors of ±8 and up to ±6 mA current density in the A, B, and W pins. The low resistor tolerance, low nominal temperature coefficient and high bandwidth simplify open-loop applications, as well as tolerance matching applications.

FEATURES

Single-channel, 128-/64-/32-position resolution

5 kΩ, 10 kΩ, 80 kΩ nominal resistance

Maximum ±8 nominal resistor tolerance error

Low wiper resistance

±6 mA maximum wiper current density

Resistor tolerance stored in EEPROM (0.1 accuracy)

Rheostat mode temperature coefficient: 35 ppm/°C

Potentiometer mode temperature coefficient: 5 ppm/°C

2.3 V to 5.5 V single-supply operation

1.8 V to 5.5 V logic supply operation

Power-on EEPROM refresh time < 50 μs

I2C-compatible interface

Wiper setting and EEPROM readback

50-year typical data retention at 125°C

1 million write cycles

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

Thin, 2 mm × 2 mm × 0.55 mm 8-lead LFCSP package

APPLICATIONS

Mechanical potentiometer replacement

Portable electronics level adjustment

Audio volume control

Low resolution DAC

LCD panel brightness and contrast control

Programmable voltage to current conversion

Programmable filters, delays, time constants

Feedback resistor programmable power supply

Sensor calibration