SPT7810

SPT7810 10-BIT, 20 MSPS, ECL OUTPUT A/D CONVERTER FEATURES Monolithic 20 MSPS Converter On-Chip Track/Hold Bipolar ±2.0 V Analog Input 60 dB SNR @ 1 MHz Input Low Power (1.3 W Typical) 5 pF input Capacitance ECL Outputs APPLICATIONS Medical Imaging Professional Video Radar Receivers Instrumentation Electronic Warfare Digital Communications GENERAL DESCRIPTION The SPT7810 A/D converter is a 10-bit monolithic converter capable of word rates of a minimum of 20 MSPS. On board track/hold function assures excellent dynamic performance without the need for external components. Drive requirement problems are minimized with an input capacitance of only 5 pF. Inputs and outputs are ECL to provide a higher level of noise immunity in high speed system applications. An overrange output signal is provided to indicate overflow conditions. Output data format is straight binary. Power dissipation is very low at only 1.3 watts with power supply voltages of +5.0 and -5.2 volts. The SPT7810 also provides a wide input voltage swing of ±2.0 volts. The SPT7810 is available in a 28-lead ceramic sidebrazed DIP, PDIP, and die form. Commercial and industrial temperature ranges are currently offered. Contact the factory for availability of military temperature range and /883 processed units. BLOCK DIAGRAM Analog Input Coarse A/D 4 Analog Prescaler T/H Amplifier Bank Decoding Network Digital Output 10 Successive Interpolation Stage i Successive Interpolation Stage i+1 ...