AD7674-18bit-800k.pdf 18-Bit, 2.5 LSB INL, 800 kSPS SAR ADC AD7674 FEATURES FUNCTIONAL BLOCK DIAGRAM 18-bit resolution with no missing codes PDBUF REF REFGND DVDD DGND No pipeline delay (SAR architecture) AGND OVDD Differential input range: ±VREF (VRE……