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FEATURES Fast 12-Bit ADC with 220 kSPS Throughput Rate 8-Lead SOIC Single 5 V Supply Operation High Speed, Flexible, Serial Interface that
Allows Interfacing to 3 V Processors On-Chip Track, Hold Amplifier Selection of Input Ranges
10 V for AD7898-10 2.5 V for AD7898-3 High Input Impedance Low Power: 22.5 mW Max
5 V, 12-Bit, Serial 220 kSPS ADC in an 8-Lead Package
AD7898*
FUNCTIONAL BLOCK DIAGRAM
AD7898
REF IN
VDD
TRACK, HOLD
VIN
SIGNAL SCALING*
12-BIT ADC
CONVST
OUTPUT REGISTER