SPT7734

SPT7734 8-BIT, 40 MSPS,175 mW A/D CONVERTER FEATURES Monolithic 40 MSPS Converter 175 mW Power Dissipation On-Chip Track-and-Hold Single +5 V Power Supply TTL/CMOS Outputs 5 pF Input Capacitance Low Cost Tri-State Output Buffers High ESD Protection: 3,500 V Minimum Selectable +3 V or +5 V Logic I/O APPLICATIONS All High-Speed Applications Where Low Power Dissipation is Required Video Imaging Medical Imaging Radar Receivers IR Imaging Digital Communications GENERAL DESCRIPTION The SPT7734 is a 8-bit monolithic, low cost, ultralow power analog-to-digital converter capable of minimum word rates of 40 MSPS. The on-chip track-and-hold function assures very good dynamic performance without the need for external components. The input drive requirements are minimized due to the SPT7734's low input capacitance of only 5 pF. Power dissipation is extremely low at only 175 mW typical at 40 MSPS with a power supply of +5.0 V. The digital outputs are +3 V or +5 V, and are user selectable. The SPT7734 has incorporated proprietary circuit design and CMOS processing technologies to achieve its advanced performance. Inputs and outputs are TTL/CMOS compatible to interface with TTL/CMOS logic systems. Output data format is straight binary. The SPT7734 is available in 28-lead SOIC and 32-lead small (7 mm square) TQFP packages over the commercial temperature range. BLOCK DIAGRAM ADC Section 1 AIN 1:16 Mux T/H AutoZero CMP 9-Bit SAR 9 9 D8 Overrange D7 (MSB) D6...