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SPT7722SIT
8-bit, 250 MSPS ADC with DeMuxed Outputs
Features TTL/CMOS/PECL input logic compatible High conversion rate: 250 MSPS Single +5V power supply
•Very low power dissipation: 425mW 350 MHz full power bandwidth Power-down mode: 24mW +3.0V/+5.0V (LVCMOS) digital output logic compatibility Single/demuxed output ports selectable Improved replacement for AD9054
Applications RGB video processing Digital communications High-speed instrumentation Digital Sampling Oscilloscopes (DSO) Projection display systems
DescriptionThe SPT7722 is a high-speed, 8-bit analog-to-digital converter
implemented in an advanced BiCMOS process. It is a
performance-enhanced version of the SPT7721, offering
better linearity and dynamic performance. An advanced folding
and interpolating architecture provides both a high conversion
rate and very low power dissipation of only 425mW. The
analog inputs can be operated in either single-ended or
differential input mode. A 2.5V common mode reference is
provided on chip for the single-ended input mode to minimize
external components.
The SPT7722 digital outputs are demuxed (double-wide) with
both dual-channel and single-channel selectable output
modes. Demuxed mode supports either parallel aligned or
interleaved data output. The output logic is both +3.0V and
+5.0V compatible. The SPT7722 is available in a 44-lead
TQFP surface mount package over the industrial temperature
range of -40°C to +85°C.
SPT7722
8-bit, 250 MSPS A/D Converter with Demuxed Outputs
Block Diagram
