SPT7720

SPT7720 8-BIT, 200 MSPS A/D CONVERTER TECHNICAL DATA MAY 9, 2001 FEATURES Pin-compatible with AD9054 High conversion rate: 200 MSPS Less than ±1/2 LSB DLE 7.16 effective number of bits (ENOB) at 70 MHz Single +5 V power supply Internal THA and voltage reference Low power: 430 mW 500 MHz full-power bandwidth 1 VPP input range Single or demuxed TTL output ports 44-lead TQFP APPLICATIONS Digital sampling oscilloscopes (DSO) RGB video processing Digital communications High-speed instrumentation Projection display systems GENERAL DESCRIPTION The SPT7720 is an 8-bit, high-speed, analog-to-digital converter implemented in a 0.5 µm BiCMOS process. It utilizes a folding and interpolating architecture that provides both high sample rates and low power. The device comes complete with a high bandwidth track-and-hold amplifier and internal voltage reference. The SPT7720 digital inputs interface directly to TTL, CMOS or positive ECL (PECL) logic. The digital outputs are user selectable in either single-channel or dual-channel modes. It is a pin-compatible, direct replacement for the AD9054. The SPT7720 is available in a 44-lead TQFP surface mount package over the industrial temperature range of –40 to +85 °C. BLOCK DIAGRAM VREF IN VREF OUT AIN AIN + – Reference THA Quantizer 8 Channel A ENCODE ENCODE DA7 – DA0 Timing & Control Binary Encoder Channel B 8 DB7 – DB0 DEMUX DS DS Signal Processing Technologies, Inc. Phone: 719-528-2300 4755 Forg...