GENERAL DESCRIPTION

The AD72651 is a dual, 12-bit, high speed, low power, successive approximation ADC that operates from a single 2.7 V to 5.25 V power supply and features throughput rates of up to 1 MSPS. The device contains two ADCs, each preceded by a 3-channel multiplexer, and a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 30 MHz.

FEATURES

Dual 12-bit, 3-channel ADC

Throughput rate: 1 MSPS

Specified for VDD of 2.7 V to 5.25 V

Power consumption

7 mW at 1 MSPS with 3 V supplies

17 mW at 1 MSPS with 5 V supplies

Pin-configurable analog inputs

12-channel single-ended inputs

6-channel fully differential inputs

6-channel pseudo differential inputs

70 dB SINAD at 50 kHz input frequency

Accurate on-chip reference: 2.5 V

±0.2 maximum @ 25°C, 20 ppm/°C maximum

Dual conversion with read 875 ns, 16 MHz SCLK

High speed serial interface

SPI?-/QSPI?-/MICROWIRE?-/DSP-compatible

?40°C to +125°C operation

Shutdown mode: 1 μA maximum

32-lead LFCSP and 32-lead TQFP

2 MSPS version, AD7266

AD7265BSU屬于集成電路（IC） > 模數(shù)轉(zhuǎn)換器（ADC）。亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD7265BSU模數(shù)轉(zhuǎn)換器（ADC）模數(shù)轉(zhuǎn)換器（ADC、A/D 或 A 轉(zhuǎn) D）對(duì)模擬信號(hào)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(hào)。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。