ADI AD7091R－2多路12位超低功耗ADC评估方案
ADI公司的AD7091R-2/AD7091R-4/AD7091R-8系列是多路12位超低功耗逐次逼近模数转换器(ADC),工作电压2.7V-5.25V,取样速率1MSPS,具有灵活的功率/吞吐量速率管理,超低功耗:正常模式1MSPS时为1.4mW,降功耗模式在VDD=5.25V时为550nA,VDD=3V时为435nA,主要用在电池工作系统,移动通信,医疗设备,数据采集系统,仪器仪表,个人数据助理,光学传感器和诊断/监视功能.本文介绍了AD7091R-2/4/8系列主要特性,框图,典型连接电路,以及评估板EVAL-AD7091R-2SDZ/4SDZ/8SDZ主要特性,框图,电路图,评估板PCB元件布局图和走线图.
The AD7091R-2/AD7091R-4/AD7091R-8 family is a multichannel 12-bit, ultralow power, successive approximation analog-todigital converter (ADC) that is available in two, four, or eight analog input channel options. The AD7091R-2/AD7091R-4/ AD7091R-8 operate from a single 2.7 V to 5.25 V power supply and are capable of achieving a sampling rate of 1 MSPS.
The AD7091R-2/AD7091R-4/AD7091R-8 family offers up to eight single-ended analog input channels with a channel sequencer that allows a preprogrammed selection of channels to be converted sequentially. The AD7091R-2/AD7091R-4/ AD7091R-8 also feature an on-chip conversion clock, an on-chip accurate 2.5 V reference, and a high speed serial interface.
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