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SPT7760AIK Datasheet(PDF) 1 Page - Cadeka Microcircuits LLC. |
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SPT7760AIK Datasheet(HTML) 1 Page - Cadeka Microcircuits LLC. |
1 / 8 page SPT7760 8-BIT, 1 GSPS, FLASH A/D CONVERTER OCTOBER 2002 FEATURES • 1:2 Demuxed ECL compatible outputs • Wide input bandwidth – 900 MHz •Low input capacitance – 15 pF • Metastable errors reduced to 1 LSB • Monolithic for low cost •Gray code output APPLICATIONS • Digital oscilloscopes •Transient capture • Radar, EW, ECM • Direct RF down-conversion GENERAL DESCRIPTION The SPT7760 is a full parallel (flash) analog-to-digital con- verter capable of digitizing full scale (0 to –2 V) inputs into eight-bit digital words at an update rate of 1 GSPS. The ECL-compatible outputs are demultiplexed into two sepa- rate output banks, each with differential data ready outputs to ease the task of data capture.The SPT7760’s wide input bandwidth and low capacitance eliminate the need for ex- ternal track-and-hold amplifiers for most applications. A proprietary decoding scheme reduces metastable errors to the 1 LSB level. The SPT7760 operates from a single –5.2 V supply, with a nominal power dissipation of 5.5 W. The SPT7760 is available in an 80-lead surface-mount MQuad package over the industrial temperature range (–25 °C to +85 °C). 256 255 152 151 128 127 64 63 2 1 CLOCK BUFFER D0 (LSB) D1 D2 D3 D4 D5 D6 D7 (MSB) D8 (OVR) VRT Analog Input Preamp Comparator VRM VRB CLK CLK D8B D7B D6B D5B D4B D3B D2B D1B D0B D8A D7A D6A D5A D4A D3A D2A D1A D0A D8B (OVR) D7B (MSB) D6B D5B D4B D3B D2B D1B D0B (LSB) D8A (OVR) D7A (MSB) D6A D5A D4A D3A D2A D1A D0A (LSB) DRA (DATA READY) DRA (DATA READY) DEMUX CLOCK BUFFER DRB (DATA READY) DRB (DATA READY) BLOCK DIAGRAM |
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