GENERAL DESCRIPTION

The AD7273/AD7274 are 10-/12-bit, high speed, low power, successive approximation ADCs, respectively. The parts operate from a single 2.35 V to 3.6 V power supply and feature throughput rates of up to 3 MSPS. Each part contains a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 55 MHz.

The AD7273/AD7274 use advanced design techniques to achieve very low power dissipation at high throughput rates.

The reference for the parts is applied externally and can be in the range of 1.4 V to VDD. This allows the widest dynamic input range to the ADC.

FEATURES

Throughput rate: 3 MSPS

Specified for VDD of 2.35 V to 3.6 V

Power consumption

11.4 mW at 3 MSPS with 3 V supplies

Wide input bandwidth

70 dB SNR at 1 MHz input frequency

Flexible power/serial clock speed management

No pipeline delays

High speed serial interface

SPI®-/QSPI™-/MICROWIRE™-/DSP-compatible

Temperature range: −40°C to +125°C

Power-down mode: 0.1 μA typ

8-lead TSOT package

8-lead MSOP package

AD7276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AD7276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。