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SPT7720 Datasheet(PDF) 1 Page - Cadeka Microcircuits LLC. |
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SPT7720 Datasheet(HTML) 1 Page - Cadeka Microcircuits LLC. |
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1 / 10 page  SPT7720 8-BIT, 200 MSPS A/D CONVERTER TECHNICAL DATA MAY 9, 2001 BLOCK DIAGRAM 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 pro- vides 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-chan- nel 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. 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 •1V PP 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 + Quantizer Binary Encoder Reference Channel A Channel B Timing & Control THA AIN AIN ENCODE ENCODE DEMUX DS DS DA7 DA0 8 8 VREF IN VREF OUT DB7 DB0 |
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