AD7643 Datasheet | Analog Devices

18-Bit, 1.25 MSPS PulSAR® ADC AD7643 Features Throughput: 1.25 MSPS INL: ±1.5 LSB typical, ±3 LSB maximum (±11 ppm of full scale) 18-bit resolution with no missing codes Dynamic range: 95 dB typical SINAD: 93.5 dB typical @ 20 kHz (VREF = 2.5 V) THD: - 113 dB typical @ 20 kHz (VREF = 2.5 V) 2.048 V internal reference: typical drift 8 ppm/°C; TEMP output Differential input range: ±VREF (VREF up to 2.5 V) No pipeline delay (SAR architecture) Parallel (18-, 16-, or 8-bit bus) and serial 5 V/3.3 V/2.5 V interface SPI®/QSPI™/MICROWIRE™/DSP patible Single 2.5 V supply operation Power dissipation 65 mW typical @ 1.25 MSPS with internal REF 2 μW in power-down mode Pb-free, 48-lead LQFP and...