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
   High performance
      Pseudo differential analog input range
         0 V to VREF with VREF between 2.9 V to 5 V
      Throughput: 1.33 MSPS
         Zero latency architecture
      16-bit resolution with no missing codes
      INL: ±0.6 LSB typical, ±1.0 LSB maximum
      Dynamic range: 93 dB, VREF = 5 V
      SNR: 92 dB at fIN = 1 kHz, VREF = 5 V
      THD: −115 dB at fIN = 1 kHz, VREF = 5 V
      SINAD: 92 dB at fIN = 1 kHz, VREF = 5 V
   Low power dissipation
      Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V
         logic interface
      5.25 mW at 1.33 MSPS (VDD only)
      10.5 mW at 1.33 MSPS (total)
      80 μW at 10 kSPS
   Proprietary serial interface
      SPI-/QSPI™-/MICROWIRE™-/DSP-compatible1
   Daisy-chain multiple ADCs and busy indicator
   10-lead MSOP and 10-lead, 3 mm × 3 mm LFCSP
   Wide operating temperature range: −40°C to +85°C

APPLICATIONS
   Automated test equipment
   Data acquisition systems
   Medical instruments
   Machine automation