GENERAL DESCRIPTION

The AD7653 is a 16-bit, 1 MSPS, charge redistribution SAR analog-to-digital converter that operates from a single 5 V power supply. The part contains a high speed 16-bit sampling ADC, internal conversion clock, internal reference, error correction circuits, and both serial and parallel system interface ports. It features a very high sampling rate mode (Warp), a fast mode (Normal) for asynchronous conversion rate applications, and a reduced power mode (Impulse) for low power applications where power is scaled with the throughput. The AD7653 is fabricated using Analog Devices’ high performance, 0.6 micron CMOS process, with correspondingly low cost. It is available in a 48-lead LQFP and a tiny 48-lead LFCSP with operation specified from –40°C to +85°C.

FEATURES

Throughput:

1 MSPS (Warp mode)

800 kSPS (Normal mode)

666 kSPS (Impulse mode)

16-bit resolution

Analog input voltage range: 0 V to 2.5 V

No pipeline delay

Parallel and serial 5 V/3 V interface

SPI?/QSPI?/MICROWIRE?/DSP compatible

Single 5 V supply operation

Power dissipation

92 mW typ @ 666 kSPS, 138 μW @ 1 kSPS without REF

128 mW typ @ 1 MSPS with REF

48-lead LQFP and 48-lead LFCSP packages

Pin-to-pin compatible with PulSAR ADCs

APPLICATIONS

Data acquisition

Instrumentation

Digital signal processing

Spectrum analysis

Medical instruments

Battery-powered systems

Process control

AD7653ASTZ屬于集成電路（IC） > 模數(shù)轉(zhuǎn)換器（ADC）。亞德諾半導體技術(shù)有限公司制造生產(chǎn)的AD7653ASTZ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)（例如自適應增量、雙斜率、折疊、流水線、SAR、三角積分、兩步式）進行選擇。