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FEATURES
8-Bit ADC with 4.5 s Conversion Time
On-Chip Track and Hold
Operating Supply Range: 2.7 V to 5.5 V
Specifications at 2.7 V – 3.6 V and 5 V 10%
8-Bit Parallel Interface
8-Bit Read
Power Performance
Normal Operation
10.5 mW, VDD = 3 V
Automatic Power-Down
57.75 W @ 1 kSPS, VDD = 3 V
Analog Input Range: 0 V to V REF
Reference Input Range: 1.2 V to VDD GENERAL DESCRIPTION The AD7819 is a high speed, microprocessor-compatible, 8-bit
analog-to-digital converter with a maximum throughput of
200 kSPS. The converter operates off a single 2.7 V to 5.5 V
supply and contains a 4.5 µs successive approximation A/D
converter, track/hold circuitry, on-chip clock oscillator and 8-bit
wide parallel interface. The parallel interface is designed to
allow easy interfacing to microprocessors and DSPs. Using only
address decoding logic the AD7819 is easily mapped into the
microprocessor address space. …