GENERAL DESCRIPTION
The AD7983 is a 16-bit, successive approximation, analog-to-digital converter (ADC) that operates from a single power supply, VDD. It contains a low power, high speed, 16-bit sampling ADC and 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. Its power scales linearly with throughput.

FEATURES
   16-bit resolution with no missing codes
   Throughput: 1.33 MSPS
   Low power dissipation: 10.5 mW typical @ 1.33 MSPS
   INL: ±0.6 LSB typical, ±1.0 LSB maximum
   SINAD: 91.6 dB @ 10 kHz
   THD: −115 dB @ 10 kHz
   Pseudo differential analog input range
      0 V to VREF with VREF between 2.9 V to 5.5 V
      Any input range and easy to drive with the ADA4841
   No pipeline delay
   Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logic
      interface
   Proprietary serial interface SPI-/QSPI™-/MICROWIRE™-/DSP-compatible1
   Daisy-chain multiple ADCs and busy indicator
   10-lead MSOP (MSOP-8 size) and 10-lead 3 mm × 3 mm QFN
      (LFCSP), SOT-23 size
   Wide operating temperature range: −40°C to +85°C

APPLICATIONS
   Battery-powered equipment
   Communications
   ATE
   Data acquisitions
   Medical instruments