16-Bit, 1.33 MSPS PulSAR ADC inMSOP/QFNData SheetAD7983FEATURESAPPLICATION DIAGRAM16-bit resolution with no missing codes2.9V TO 5V2.5VThroughput: 1.33 MSPS Low power dissipation: 10.5 mW typical @ 1.33 MSPS INL: ±0.6 LSB typical, ±1.0 LSB maximumREF VDD VIO1.8V TO 5VSINAD: 91.6 dB @ 10 kHz0 TO VREFSDIIN+THD: −115 dB @ 10 kHzAD7983 SCK3- OR 4-WIRE INTERFACEIN–(SPI, DAISY CHAIN, CS)Pseudo differential analog input rangeSDOGNDCNV 1 0 V to V 00 REF with VREF between 2.9 V to 5.5 V 4- 97 Any input range and easy to drive with the ADA4841 06 Figure 1. No pipeline delay Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logicGENERAL DESCRIPTIONinterface The AD7983 is a 16-bit, successive approximation, analog-to- Proprietary serial interface SPI-/QSPI™-/MICROWIRE™-/DSP- digital converter (ADC) that operates from a single power compatible1 supply, VDD. It contains a low power, high speed, 16-bit Daisy-chain multiple ADCs and busy indicator sampling ADC and a versatile serial interface port. On the CNV 10-lead MSOP (MSOP-8 size) and 10-lead 3 mm × 3 mm QFN rising edge, it samples an analog input IN+ between 0 V to REF (LFCSP), SOT-23 size with respect to a ground sense IN−. The reference voltage, REF, Wide operating temperature range: −40°C to +85°C is applied externally and can be set independent of the supply
voltage, VDD. Its power scales linearly with throughput. APPLICATIONS The SPI-compatible serial interface also features the ability, Battery-powered equipment using the SDI input, to daisy-chain several ADCs on a single, Communications 3-wire bus and provides an optional busy indicator. It is ATE compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic, using the separate Data acquisitions supply VIO. Medical instruments The AD7983 is housed in a 10-lead MSOP or a 10-lead QFN