AD7720屬于集成電路（IC）的ADC/DAC-特殊用途。由亞德諾半導體技術(shù)有限公司制造生產(chǎn)的AD7720ADC/DAC - 特殊用途該產(chǎn)品族中的產(chǎn)品可用于模擬和數(shù)字表示的信息轉(zhuǎn)換，適用于特定用例，或集成了通用數(shù)據(jù)轉(zhuǎn)換器中不常見的其他功能。例如針對超聲或汽車雷達應用集成了低噪聲放大器和可變增益級的器件、注重音頻和視頻的產(chǎn)品、在段碼式顯示器上集成顯示測量值功能的器件、集成輸入輸出電氣隔離的器件等。

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