AD524集成电路（IC）的数字电位计规格书PDF中文资料

AD524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AD524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 AD8428 is an ultralow noise instrumentation amplifier designed to accurately measure tiny, high speed signals. It delivers industry-leading gain accuracy, noise, and bandwidth.

All gain setting resistors for the AD8428 are internal to the part and are precisely matched. Care is taken in both the chip pinout and layout. This results in excellent gain drift and quick settling to the final gain value after the part is powered on.

The high CMRR of the AD8428 prevents unwanted signals from corrupting the signal of interest. The pinout of the AD8428 is designed to avoid parasitic capacitance mismatches that can degrade CMRR at high frequencies.

FEATURES

Fixed gain of 2000

Access to internal nodes provides flexibility

Low noise: 1.5 nV/√Hz input voltage noise

High accuracy dc performance

Gain drift: 5 ppm/°C

Offset drift: 0.3 μV/°C

Gain accuracy: 0.05

CMRR: 140 dB min

Excellent ac specifications

Bandwidth: 3.5 MHz

Slew rate: 40 V/μs

Power supply range: ±4 V to ±18 V

8-lead SOIC package

ESD protection: 5000 V (HBM)

Temperature range for specified performance:

−40°C to +85°C

Operational up to 125°C

APPLICATIONS

Sensor interface

Medical instrumentation

Patient monitoring