6-Channel SAR ADCs for Industrial Monitoring and PortableInstruments:The 14-bit LTC2351-14 is a 1.5Msps, low power SARADC with six simultaneously sampled differential inputchannels. It operates from a single 3V supply and featuressix independent sample-and-hold amplifi ers and a singleADC. The single ADC with multiple S/HAs enables excellentrange match (1mV) between channels and channel-tochannelskew (200ps).The versatile LTC2351-14 is ideally suited for industrialmonitoring applications such as 3-phase power linemonitoring to ensure line voltage compliance, portablepower line instrumentation, power factor correction, motorcontrol, and data acquisition. These applications maybe battery powered, and it is here that the LTC2351-14’slow power and small size are desirable. Power consumptionis a mere 16.5mW, which extends battery life. The3-wire serial interface means fewer pins than paralleloutput devices, allowing the LTC2351-14 to fi t in a 32-pin,5mm × 5mm QFN package.
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