The AD7783 is a complete analog front end for low frequencymeasurement applications. The 24-bit sigma-delta ADC containsone fully differential input channel that can be configuredwith a gain of 1 or 16 allowing full-scale input signal ranges of±2.56 V or ±160 mV from a +2.5 V differential reference input.It also contains two 200 mA integrated current sources.The AD7783 has an extremely simple, read-only digital interfacethat can be operated in master mode or slave mode.There are no on-chip registers to be programmed. The inputsignal range and current source selection are configured usingtwo external pins.