AD7983 Datasheet | Analog Devices

16-Bit, 1.33 MSPS Pul SAR ADC in MSOP/QFN AD7983 Features .. 16-bit resolution with no missing codes Throughput: 1.33 MSPS Low power dissipation: 10.5 m W typical @ 1.33 MSPS INL: ±0.6 LSB typical, ±1.0 LSB maximum SINAD: 91.6 d B @ 10 k Hz THD: - 115 d B @ 10 k Hz 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-patible 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 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-patible serial interface also Features the ability, using the SDI input, to daisy-chain several ADCs on a single, 3-wire bus and provides an optional busy indicator. It is patible with 1.8 V, 2.5 V, 3 V, or 5 V logic, using the separate supply VIO. The AD7983 is housed in a 10-lead MSOP or a 10-lead QFN1 (LFCSP) with operation specified from - 40°C to +85°C. APPLICATIONS Battery-powered equipment munications ATE Data acquisitions Medical instruments QFN package in development. Contact sales for samples and availability. Table 1. MSOP, QFN (LFCSP)...