GENERAL DESCRIPTION

The AD7492, AD7492-4, and AD7492-5 are 12-bit high speed, low power, successive approximation ADCs. The parts operate from a single 2.7 V to 5.25 V power supply and feature throughput rates up to 1.25 MSPS. They contain a low noise, wide bandwidth track/hold amplifier that can handle bandwidths up to 10 MHz.

FEATURES

Specified for VDD of 2.7 V to 5.25 V

Throughput rate of 1 MSPS (AD7492)

Throughput rate of 1.25 MSPS (AD7492-5)

Throughput rate of 400 kSPS (AD7492-4)

Low power

4 mW typ at 1 MSPS with 3 V supplies

11 mW typ at 1 MSPS with 5 V supplies

Wide input bandwidth

70 dB typ SNR at 100 kHz input frequency

2.5 V internal reference

On-chip CLK oscillator

Flexible power/throughput rate management

No pipeline delays

High speed parallel interface

Sleep mode: 50 nA typ

24-lead SOIC and TSSOP packages

AD7492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AD7492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。