AD7725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AD7725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)字輸出是二進制補碼二進制數(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）進行選擇。

GENERAL DESCRIPTION

The AD7725 is a complete 16-bit,Σ-Δ analog-to-digital converter with on-chip, user-programmable signal conditioning. The output of the modulator is processed by three cascaded finite impulse response (FIR) filters, followed by a fully user-programmable postprocessor. The postprocessor provides processing power of up to 130 million accumulates (MAC) per second. The user has complete control over the filter response, the filter coefficients, and the decimation ratio.

FEATURES

Programmable Filtering:

Any Characteristic up to 108 Tap FIR and/or IIR

Polynomial Signal Conditioning up to 8th Order

Programmable Decimation and Output Word Rate

Flexible Programming Modes:

Boot from DSP or External EPROM

Parallel/Serial Interface

Internal Default Filter for Evaluation

14.4 MHz Max Master Clock Frequency

0 V to +4 V (Single-Ended) or ±2 V (Differential) Input

Range

Power Supplies: AVDD, DVDD: 5 V ± 5

On-Chip 2.5 V Voltage Reference

44-Lead MQFP Package

TYPICAL APPLICATIONS

Radar

Sonar

Auxiliary Car Functions

Medical Communications