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Description

The AD7829-1 is a high speed 8-channel, microprocessor compatible, 8-bit analog-to-digital converter with a maximum throughput of 2 MSPS. The AD7829-1 contains an on-chip reference of 2.5 V (2% tolerance); a track-and-hold amplifier; a 420 ns, 8-bit half-flash ADC; and a high speed parallel interface. The converter can operate from a single 3 V ± 10% and 5 V ± 10% supply.

Features 

8-bit half-flash ADC with 420 ns conversion time
Eight single-ended analog input channels
Available with input offset adjust
On-chip track-and-hold
SNR performance given for input frequencies
up to10 MHz
On-chip reference (2.5 V)
Automatic power-down at the end of conversion
Wide operating supply range
3 V ± 10% and 5 V ± 10%
Input ranges
0 V to 2 V p-p, VDD= 3 V ± 10%
0 V to 2.5 V p-p, VDD= 5 V ± 10%
Flexible parallel interface with EOCpulse to allow
stand-alone operation

Applications :

1. Data acquisition systems, DSP front ends
2. Disk drives
3. Mobile communication systems, subsampling applications