AD7988 Analog to Digital Converters

By Analog Devices Inc 208

AD7988 Analog to Digital Converters

Analog Devices' AD7988-1/ AD7988-5 are 16-bit, successive approximation, analog-to-digital converters (ADC) that operate from a single power supply, VDD. The AD7988-1 offers a 100 kSPS throughput and the AD7988-5 offers 500 kSPS throughput. They are low power, 16-bit sampling ADCs with a versatile serial interface port. On the CNV rising edge, it samples an analog input IN+ between 0 V to REF with respect to a ground sense IN-. The reference voltage, REF, is applied externally and can be set independent of the supply voltage, VDD.

The SPI-compatible serial interface also features the ability, using the SDI input, to daisy-chain several ADCs on a single, 3-wire bus. It is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic by implementing the separate supply VIO.

  • Battery-powered equipment
  • Data acquisitions
  • Low power data acquisition systems
  • Portable medical instruments
  • ATE equipment
  • Communications

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