GENERAL DESCRIPTION

The AD7466/AD7467/AD7468 are 12-/10-/8-bit, high speed, low power, successive approximation analog-to-digital converters (ADCs), respectively. The parts operate from a single1.6 V to 3.6 V power supply and feature throughput rates up to 200 kSPS with low power dissipation. The parts contain a low noise, wide bandwidth track-and-hold amplifier, which can handle input frequencies in excess of 3 MHz. The conversion process and data acquisition are controlled using CSand the serial clock, allowing the devices to interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS, and the conversion is also initiated at this point. There are no pipeline delays associated with the part.

FEATURES

Specified for VDD of 1.6 V to 3.6 V

Low power:

0.62 mW typical at 100 kSPS with 3 V supplies

0.48 mW typical at 50 kSPS with 3.6 V supplies

0.12 mW typical at 100 kSPS with 1.6 V supplies

Fast throughput rate: 200 kSPS

Wide input bandwidth:

71 dB SNR at 30 kHz input frequency

Flexible power/serial clock speed management

No pipeline delays

High speed serial interface:

SPI/QSPI™/MICROWIRE™/DSP compatible

Automatic power-down

Power-down mode: 8 nA typical

6-lead SOT-23 package

8-lead MSOP package

APPLICATIONS

Battery-powered systems

Medical instruments

Remote data acquisition

Isolated data acquisition

AD7466

VDD= 1.6 V to 3.6 V, fSCLK= 3.4 MHz, fSAMPLE= 100 kSPS, unless otherwise noted. TA= TMINto TMAX, unless otherwise noted.

The temperature range for the B version is −40°C to +85°C.

AD7467

VDD= 1.6 V to 3.6 V, fSCLK= 3.4 MHz, fSAMPLE= 100 kSPS, unless otherwise noted. TA= TMINto TMAX, unless otherwise noted.

The temperature range for the B version is −40°C to +85°C.

AD7468

VDD= 1.6 V to 3.6 V, fSCLK= 3.4 MHz, fSAMPLE= 100 kSPS, unless otherwise noted. TA= TMINto TMAX, unless otherwise noted.

The temperature range for the B version is −40°C to +85°C.

AD7466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AD7466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。