AD7878集成電路（IC）的模數(shù)轉(zhuǎn)換器（ADC）規(guī)格書PDF中文資料

AD7878屬于集成電路（IC）的模數(shù)轉(zhuǎn)換器（ADC）。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD7878模數(shù)轉(zhuǎn)換器（ADC）模數(shù)轉(zhuǎn)換器（ADC、A/D 或 A 轉(zhuǎn) D）對模擬信號進(jìn)行采樣，例如由麥克風(fēng)采集的聲音或傳感器的輸出，然后將其轉(zhuǎn)換為數(shù)字信號。一般來說，數(shù)字輸出是二進(jìn)制補(bǔ)碼二進(jìn)制數(shù)，與輸入成比例。輸入類型可能是差分、偽差分或單端輸入。模數(shù)轉(zhuǎn)換器可按照位數(shù)、采樣率、輸入數(shù)、接口、轉(zhuǎn)換器數(shù)和架構(gòu)（例如自適應(yīng)增量、雙斜率、折疊、流水線、SAR、三角積分、兩步式）進(jìn)行選擇。

GENERAL DESCRIPTION

The AD7878 is a fast, complete, 12-bit A/D converter with a versatile DSP interface consisting of an 8-word, first-in, first-out (FIFO) memory and associated control logic.

FEATURES

Complete ADC with DSP Interface, Comprising:

Track/Hold Amplifier with 2 μs Acquisition Time

7 μs A/D Converter

3 V Zener Reference

8-Word FIFO and Interface Logic

72 dB SNR at 10 kHz Input Frequency

Interfaces to High Speed DSP Processors, e.g.,

ADSP-2100, TMS32010, TMS32020

41 ns max Data Access Time

Low Power, 60 mW typ

APPLICATIONS

Digital Signal Processing

Speech Recognition and Synthesis

Spectrum Analysis

High Speed Modems

DSP Servo Control