AD7655AST集成電路（IC）的模數(shù)轉換器（ADC）規(guī)格書PDF中文資料

AD7655AST屬于集成電路（IC）的模數(shù)轉換器（ADC）。由亞德諾半導體技術有限公司制造生產的AD7655AST模數(shù)轉換器（ADC）模數(shù)轉換器（ADC、A/D 或 A 轉 D）對模擬信號進行采樣，例如由麥克風采集的聲音或傳感器的輸出，然后將其轉換為數(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)轉換器可按照位數(shù)、采樣率、輸入數(shù)、接口、轉換器數(shù)和架構（例如自適應增量、雙斜率、折疊、流水線、SAR、三角積分、兩步式）進行選擇。

GENERAL DESCRIPTION

The AD7655 is a low cost, simultaneous sampling, dual channel, 16-bit, charge redistribution SAR, analog-to-digital converter that operates from a single 5 V power supply. It contains two low noise, wide bandwidth, track-and-hold amplifiers that allow simultaneous sampling, a high speed 16-bit sampling ADC, an internal conversion clock, error correction circuits, and both serial and parallel system interface ports. Each track-and-hold has a multiplexer in front to provide a 4-channel input ADC. The A0 multiplexer control input allows the choice of simultaneously sampling input pairs INA1/INB1 (A0 = low) or INA2/INB2 (A0 = high). The part features a very high sampling rate mode (normal) and, for low power applications, a reduced power mode (impulse) where the power is scaled with the throughput. Operation is specified

from ?40°C to +85°C.

FEATURES

4-channel, 16-bit resolution ADC

2 track-and-hold amplifiers

Throughput

1 MSPS (normal mode)

888 kSPS (impulse mode)

Analog input voltage range: 0 V to 5 V

No pipeline delay

Parallel and serial 5 V/3 V interface

SPI?/QSPI?/MICROWIRE?/DSP compatible

Single 5 V supply operation

Power dissipation

120 mW typical

2.6 mW @ 10 kSPS

Package

48-lead quad flat package (LQFP)

48-lead frame chip scale package (LFCSP)

Pin-to-pin compatible with the AD7654

Low cost

APPLICATIONS

AC motor control

3-phase power control

4-channel data acquisition

Uninterrupted power supplies

Communications