AD5263集成电路（IC）的数字电位计规格书PDF中文资料

AD5263属于集成电路（IC）的数字电位计。由亚德诺半导体技术有限公司制造生产的AD5263数字电位计数字电位器是一系列集成电路器件，可提供类似于传统机械电位器或变阻器的可调节电阻，但通过电子信号而非机械输入来进行控制。虽然这些器件的电阻可耗散的电能相对有限，但其电子控制能力有助于小型化、自动化和远程控制信号级模拟电路，而这些电路本来可能会使用机械电位器。

GENERAL DESCRIPTION

The AD5263 is the industry’s first quad-channel, 256-position, digital potentiometer1 with a selectable digital interface. This device performs the same electronic adjustment function as mechanical potentiometers or variable resistors, with enhanced resolution, solid-state reliability, and superior low temperature coefficient performance.

Each channel of the AD5263 offers a completely programmable value of resistance between the A terminal and the wiper or between the B terminal and the wiper. The fixed A-to-B terminal resistance of 20 kΩ, 50 kΩ, or 200 kΩ has a nominal temperature coefficient of ±30 ppm/°C and a ±1 channel-to-channel matching tolerance. Another key feature of this part is the ability to operate from +4.5 V to +15 V, or at ±5 V.

FEATURES

256-position, 4-channel

End-to-end resistance 20 kΩ, 50 kΩ, 200 kΩ

Pin-selectable SPI®- or I2C®-compatible interface

Power-on preset to midscale

Two package address decode pins AD0 and AD1

Rheostat mode temperature coefficient 30 ppm/°C

Voltage divider temperature coefficient 5 ppm/°C

Wide operating temperature range –40°C to +125°C

10 V to 15 V single supply; ±5 V dual supply

APPLICATIONS

Mechanical potentiometer replacement

Optical network adjustment

Instrumentation: gain, offset adjustment

Stereo channel audio level control

Automotive electronics adjustment

Programmable power supply

Programmable filters, delays, time constants

Line impedance matching

Low resolution DAC/trimmer replacement

Base station power amp biasing

Sensor calibration