Datasheet Summary
a
Preliminary Technical Information
Features
.. Fast 12-Bit ADC with 1.4 µs Conversion Time Up to 600 kSPS Throughput Rate (Mode A) Single Supply Operation On-Chip Track/Hold Amplifier Selection of Input Ranges: ±10 V or ±5 V for AD7889-1 0 V to +2.5 V or 0V to+5 V for AD7889-2 ±2.5 V for AD7889-3 High Speed Serial Interface Low Power, 60 mW typ
VREF 2½K
LC2MOS Single Supply, 12-Bit 600 kSPS ADC AD7889
FUNCTIONAL BLOCK DIAGRAM
VDD +2.5V REFERENCE
RFS TRACK /HOLD 12-BIT ADC SDATA SCLK
VIN1 VIN2
SIGNAL SCALING
CONTROL LOGIC
STANDBY
CONVST CONTCLK 16/14B
AGND
DGND
GENERAL DESCRIPTION
The AD7889 is a high speed, low power, 12-bit A/D converter that operates...