FEATURES
18-bit resolution with no missing codes
Throughput: 250 kSPS
INL: ±0.75 LSB typical, ±1.5 LSB maximum (±6 ppm of FSR)
Dynamic range: 102 dB typical at 250 kSPS
Oversampled dynamic range: 125 dB at1 kSPS
Noise-free code resolution: 20 bits at 1 kSPS
Effective resolution: 22.7 bits at 1 kSPS
SINAD: 101.5 dB typical at 1 kHz
THD: −125 dB typ ical at 1 kHz
True differential analog input range: ±VREF
0 V to VREF with VREF up to VDD on both inputs
No pipeline delay
Single-supply 2.3 V to 5 V operation with
1.8 V/2.5 V/3 V/5 V logic interface
Proprietary serial interface
SPI/QSPI/MICROWIRE™/D SP compatible
Ability to daisy-chain multiple ADCs
Optional busy indicator feature
Power dissipation
1.35 mW at 2.5 V/100 kSPS, 4 mW at 5 V/100 kSPS
1.4 µW at 2.5 V/100 SPS
Standby current: 1 nA
10-lead packages: MSOP (MSOP-8 size) and
3 mm × 3 mm LFCSP (SOT-23 size)
Pin-for-pin compatible with the18-bit AD7690 and
16-bit AD7693, AD7688, and AD7687