AD7983

16-Bit, 1.33 MSPS PulSAR ADC in MSOP/QFN AD7983 FEATURES www.datasheet4u.com 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 Serial interface SPI-/QSPI™-/MICROWIRE™-/DSP-compatible Daisy-chain multiple ADCs and busy indicator 10-lead MSOP (MSOP-8 size) and 10-lead 3 mm × 3 mm QFN 1 (LFCSP), SOT-23 size Wide operating temperature range: −40°C to +85°C APPLICATION DIAGRAM 2.9V TO 5V 2.5V 0 TO VREF IN+ IN– REF VDD VIO SDI 1.8V TO 5V 3- OR 4-WIRE INTERFACE (SPI, DAISY CHAIN, CS) 06974-001 AD7983 GND SCK SDO CNV Figure 1. GENERAL DESCRIPTION The AD7983 is a 16-bit, successive approximation, analog-todigital 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. The SPI-compatible serial interface also features the ability, using the SDI input, to dai...