AD7916

Data Sheet 16-Bit, 1 MSPS/500 kSPS Differential PulSAR ADCs AD7915/AD7916 FEATURES High performance True differential analog input range: ±VREF 0 V to VREF with VREF between 2.5 V and 5 V Throughput: 1 MSPS/500 kSPS options Zero latency architecture 16-bit resolution with no missing codes INL: ±0.4 LSB typical, ±1 LSB maximum Dynamic range: 95.5 dB, VREF = 5 V SNR: 94 dB at fIN = 1 kHz, VREF = 5 V THD: −118.5 dB at fIN = 1 kHz, VREF = 5 V SINAD: 93.5 dB at fIN = 1 kHz, VREF = 5 V Low power dissipation Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface AD7915: 4 mW at 1 MSPS (VDD only) 7 mW at 1 MSPS (total) AD7916: 2 mW at 500 kSPS (VDD only) 3.7 mW at 500 kSPS (total) 70 μW at 10 kSPS Proprietary serial interface: SPI-/QSPI-/MICROWIRE™-/DSPcompatible1 10-lead packages: MSOP and 3 mm × 3 mm LFCSP Wide operating temperature range: −40°C to +125°C APPLICATIONS Automated test equipment Data acquisition systems Medical instruments Machine automation TYPICAL APPLICATIONS CIRCUIT 2.5V TO 5V 2.5V ±10V, ±5V, .. ADA4940-1 REF VDD VIO IN+ SDI/CS AD7915/ AD7916 IN– GND SCK SDO CNV 1.8V TO 5V 3- OR 4-WIRE INTERFACE (SPI, CS, DAISY CHAIN) 12583-001 Figure 1. GENERAL DESCRIPTION The AD7915/AD7916 are 16-bit, successive approximation, analog-to-digital converters (ADCs) that operate from a single power supply, VDD. They contain a low power, high speed, 16-bit sampling ADC and a versatile serial interface port. On the CNV rising edge, the AD7915/AD7916 sample ...