AD7720集成电路（IC）的ADC/DAC-特殊用途规格书PDF中文资料

AD7720属于集成电路（IC）的ADC/DAC-特殊用途。由亚德诺半导体技术有限公司制造生产的AD7720ADC/DAC - 特殊用途该产品族中的产品可用于模拟和数字表示的信息转换，适用于特定用例，或集成了通用数据转换器中不常见的其他功能。例如针对超声或汽车雷达应用集成了低噪声放大器和可变增益级的器件、注重音频和视频的产品、在段码式显示器上集成显示测量值功能的器件、集成输入输出电气隔离的器件等。

GENERAL DESCRIPTION

This device is a 7th order sigma-delta modulator that converts the analog input signal into a high speed 1-bit data stream. The part operates from a +5 V supply and accepts a differential input range of 0 V to +2.5 V or ±1.25 V centered about a commonmode bias. The analog input is continuously sampled by the analog modulator, eliminating the need for external sample and hold circuitry. The input information is contained in the output stream as a density of ones. The original information can be reconstructed with an appropriate digital filter.

FEATURES

12.5 MHz Master Clock Frequency

0 V to +2.5 V or ±1.25 V Input Range

Single Bit Output Stream

90 dB Dynamic Range

Power Supplies: AVDD, DVDD: +5 V ± 5

On-Chip 2.5 V Voltage Reference

28-Lead TSSOP