AD7451集成电路（IC）的模数转换器（ADC）规格书PDF中文资料

AD7451属于集成电路（IC）的模数转换器（ADC）。由亚德诺半导体技术有限公司制造生产的AD7451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。

GENERAL DESCRIPTION

The AD7441/AD74511 are, respectively, 10-/12-bit high speed, low power, single-supply, successive approximation (SAR), analog-to-digital converters (ADCs) that feature a pseudo differential analog input. These parts operate from a single 2.7 V to 5.25 V power supply and achieve very low power dissipation at high throughput rates of up to 1 MSPS.

The AD7441/AD7451 contain a low noise, wide bandwidth, differential track-and-hold (T/H) amplifier that handles input frequencies up to 3.5 MHz. The reference voltage for these devices is applied externally to the VREF pin and can range from 100 mV to VDD, depending on the power supply and what suits the application.

FEATURES

Fast throughput rate: 1 MSPS

Specified for VDD of 2.7 V to 5.25 V

Low power at maximum throughput rate:

4 mW maximum at 1 MSPS with VDD = 3 V

9.25 mW maximum at 1 MSPS with VDD = 5 V

Pseudo differential analog input

Wide input bandwidth:

70 dB SINAD at 100 kHz input frequency

Flexible power/serial clock speed management

No pipeline delays

High speed serial interface:

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

Power-down mode: 1 μA maximum

8-lead SOT-23 and MSOP packages

APPLICATIONS

Transducer interface

Battery-powered systems

Data acquisition systems

Portable instrumentation