GENERAL DESCRIPTION

The AD7904/AD7914/AD7924 are, respectively, 8-bit, 10-bit, and 12-bit, high speed, low power, 4-channel successive approximation ADCs. The parts operate from a single 2.7 V to 5.25 V power supply and feature throughput rates up to 1 MSPS. The parts contain a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 8 MHz.

FEATURES

Fast throughput rate: 1 MSPS

Specified for AVDD of 2.7 V to 5.25 V

Low power:

6 mW maximum at 1 MSPS with 3 V supplies

13.5 mW maximum at 1 MSPS with 5 V supplies

4 single-ended inputs with sequencer

Wide input bandwidth

AD7924, 70 dB SNR at 50 kHz input frequency

Flexible power/serial clock speed management

No pipeline delays

High speed serial interface: SPI/QSPI™/

MICROWIRE™/DSP compatible

Shutdown mode: 0.5 µA maximum

16-lead TSSOP package

Qualified for automotive applications

AD7914BRU属于集成电路（IC） > 模数转换器（ADC）。亚德诺半导体技术有限公司制造生产的AD7914BRU模数转换器（ADC）模数转换器（ADC、A/D 或 A 转 D）对模拟信号进行采样，例如由麦克风采集的声音或传感器的输出，然后将其转换为数字信号。一般来说，数字输出是二进制补码二进制数，与输入成比例。输入类型可能是差分、伪差分或单端输入。模数转换器可按照位数、采样率、输入数、接口、转换器数和架构（例如自适应增量、双斜率、折叠、流水线、SAR、三角积分、两步式）进行选择。