In summary, the MCP3901 dual channel analog front end features high accuracy 16-/24-bit delta-sigma A/D converters, internal programmable gain amplifiers, an internal voltage reference, and phase-delay compensation with up to 91dB SINAD. Communication with the MCP3901 is done via the SPI interface which enables control of the PGAs, oversampling ratio for control of the output data rate (up to 64ksps), resolution, dithering, and shutdown along with other communication features.