GENERAL DESCRIPTION

The AD5544/AD5554 quad, 16-/14-bit, current output, digitalto-analog converters (DACs) are designed to operate from a 2.7 V to 5.5 V supply range.

The applied external reference input voltage (VREFx) determines the full-scale output current. Integrated feedback resistors (RFB) provide temperature-tracking, full-scale voltage outputs when combined with an external I-to-V precision amplifier.

FEATURES

AD5544: 16-bit resolution

INL of ±1 LSB (B Grade)

AD5554: 14-bit resolution

INL of ±0.5 LSB (B Grade)

2 mA full-scale current ± 20, with VREF = ±10 V

0.9 μs settling time to ±0.1

12 MHz multiplying bandwidth

Midscale glitch of −1 nV-sec

Midscale or zero-scale reset

4 separate, 4-quadrant multiplying reference inputs

SPI-compatible, 3-wire interface

Double-buffered registers enable

Simultaneous multichannel change

Internal power-on reset

Temperature range: −40°C to +125°C

Compact 28-lead SSOP and 32-lead LFCSP

APPLICATIONS

Automatic test equipment

Instrumentation

Digitally controlled calibration

AD5554属于集成电路（IC） > 数模转换器（DAC）。亚德诺半导体技术有限公司制造生产的AD5554数模转换器（DAC）数模转换器（DAC、D/A、D2A 或 D 转 A）可将数字信号转换为缓冲或无缓冲的模拟电压或电流。DAC 架构是否适合特定应用，要取决于分辨率和采样频率。DAC 通常用于音乐播放器，将数字数据流转换为模拟音频流。它们还用于电视和手机，将数字视频数据转换为模拟视频信号，再连接到屏幕驱动器，以显示单色或彩色图像。