AD7720 PDF File ( Datasheet )

a FEATURES 12.5 MH- Master Clock Frequency 0 V to +2.5 V or 1.25 V Input Range Single Bit Output Stream 90 dB Dynamic Range Power Supplies: AVDD, DVDD: +5 V 5% On-Chip 2.5 V Voltage Reference 28-Lead TSSOP CMOS Sigma-Delta Modulator AD7720 FUNCTIONAL BLOCK DIAGRAM AVDD AGND DVDD DGND REF1 AD7720 2.5V REFERENCE REF2 VIN(+) VIN( ) SIGMA-DELTA MODULATOR DATA SCLK MZERO GC CLOCK CIRCUITRY XTAL1, MCLK XTAL2 BIP CONTROL LOGIC DVAL RESETO RESET STBY GENERAL DESCRIPTION This device is