AD7988-5

Data Sheet FEATURES Low power dissipation AD7988-1 400 µW at 100 kSPS (VDD only) 700 µW at 100 kSPS (total) AD7988-5 2 mW at 500 kSPS (VDD only) 3.5 mW at 500 kSPS (total) 16-bit resolution with no missing codes Throughput: 100 kSPS/500 kSPS options INL: ±0.6 LSB typical, ±1.25 LSB maximum SINAD: 91.5 dB at 10 kHz THD: −114 dB at 10 kHz Pseudo differential analog input range 0 V to VREF with VREF from 2.5 V to 5.0 V No pipeline delay Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface Proprietary SPI-/QSPI™-/MICROWIRE™-/DSP-compatible serial interface Daisy-chain multiple ADCs 10-lead MSOP and 10-lead, 3 mm × 3 mm LFCSP, same space as SOT-23 Wide operating temperature range: −40°C to +125°C APPLICATIONS Battery-powered equipment Low power data acquisition systems Portable medical instruments ATE equipment Data acquisitions Communications 16-Bit Lower Power PulSAR ADCs in MSOP/LFCSP AD7988-1/AD7988-5 GENERAL DESCRIPTION The AD7988-1/AD7988-51 are 16-bit, successive approximation, analog-to-digital converters (ADC) that operate from a single power supply, VDD. The AD7988-1 offers a 100 kSPS throughput, and the AD7988-5 offers a 500 kSPS throughput. They are low power, 16-bit sampling ADCs with a versatile serial interface port. On the CNV rising edge, they sample an analog input, IN+, between 0 V to VREF with respect to a ground sense, IN−. The reference voltage, REF, is applied externally and can be set independent of the supply voltage, VDD. The SPI-compa...