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14-Bit, 500 kSPS PulSAR ADC in MSOP
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14-Bit, 500 kSPS,
PulSAR ADC in MSOP and LFCSP
AD7946 Data Sheet TYPICAL APPLICATION CIRCUIT
0.5V TO 5V 14-bit resolution with no missing codes
Throughput: 500 kSPS
INL: ±0.4 LSB typical, ±1 LSB maximum (±0.0061% of FSR)
SINAD: 85 dB at 20 kHz
THD: −100 dB at 20 kHz
Pseudo differential analog input range
0 V to REF with REF up to VDD
No pipeline delay
Single-supply 5 V operation with 1.8 V/2.5 V/3 V/5 V logic
interface
Proprietary serial interface
SPI-/QSPI™-/MICROWIRE™-/DSP-compatible
Daisy-chain multiple ADCs and BUSY indicator
Power dissipation
3.3 mW at 5 V/100 kSPS
3.3 µW at 5 V/100 SPS
Standby current: 1 nA
10-lead MSOP (MSOP-8 size) and
3 mm × 3 mm LFCSP (SOT-23 size)
Pin-for-pin compatible with the 16-bit AD7686 0V TO REF …