AD7687 16-Bit PulSAR® Differential ADCs

Analog Devices AD7687 16-Bit PulSAR® Differential ADCs are charge redistribution, successive approximation ADCs operating from a single power supply, V_DD, between 2.3V to 5.5V. AD7687 includes a low power, high speed, 16-bit sampling ADC with no missing codes, an internal conversion clock, and a versatile serial interface port. AD7687 also provides a low noise, wide bandwidth, short aperture delay track-and-hold circuit. The SPI-compatible serial interface offers designers the ability, using the SDI input, to daisy-chain several ADCs on a single 3-wire bus and an optional busy indicator. AD7687 is compatible with 1.8V, 2.5V, 3V, or 5V logic using a separate supply (VIO). The reference voltage, V_REF, is applied externally and is set up to be the supply voltage. AD7687 power scales linearly with the throughput. Available in a 10-lead MSOP or a 10-lead LFCSP package, AD7687 is specified for operation from −40°C to +85°C. The AD7687 ADCs are well-suited for battery-powered equipment, data acquisition, instrumentation, medical instruments, and process controls.