AD7686 PDF Datasheet
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Description
This is 500 kSPS PulSAR ADC. 16-Bit, 500 kSPS PulSAR ADC in MSOP, QFN AD7686
FEATURES
16-bit resolution with no missing codes Throughput: 500 kSPS INL: ±0.6 LSB typical, ±2 LSB maximum (±0.003% of FSR) SINAD: 92.5 dB @ 20 kH- THD: 110 dB @ 20 kH- Pseudo differential analog input range 0 V to VREF with VREF up to VDD No pipeline delay Single-supply 5 V operation with 1.8 V, 2.5 V, 3 V, 5 V logic interface Serial interface SPI®-, QSPI™-, MICROWIRE™-, DSP-compatible Daisy-chain multiple ADCs and busy indicator Power dissipation 3.75 μW @ 5 V, 100 SPS 3.75 mW @ 5 V, 100 kSPS Standby current: 1 nA 10-lead MSOP (MSOP-8 size) and 3 mm × 3 mm, 10-lead QFN (LFCSP) (SOT-23 size) Pin-for-pin-compatible with 10-lead MSOP, QFN PulSAR® ADCs
FUNCTIONAL BLOCK DIAGRAM
0.5V TO 5V 5V
0 TO VREF IN+ IN
REF VDD VIO SDI
1.8V TO VDD 3- OR 4-WIRE INTERFACE (SPI, DAISY CHAIN, CS)
AD7686
GND
SCK SDO CNV
Figure 2.
Table 1. MSOP, QFN (LFCSP), SOT-23 14-, 16-, 18-Bit PulSAR ADC
Type 18-Bit True Differential 16-Bit True Differential 1.