SPT7850

• Monolithic 20 MSPS converter
• 140 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

• All high-speed applications where low power dissipation is required
• Video imaging
• Medical imaging
• IR imaging
• Scanners
• Digital communications

The SPT7850 is a 10-bit monolithic, low-cost, ultralow-power analog-to-digital converter capable of minimum word rates of 20 MSPS. The on-chip track-and-hold func-tion assures very good dynamic performance without the need for external components. The input drive require-ments are minimized due to the SPT7850's low input capacitance of only 5 pF.

Power dissipation is extremely low at only 140 mW typical(165 mW maximum) at 20 MSPS with a power supply of +5.0 V. The digital outputs are +3 V or +5 V,and are user selectable.The SPT7850 is pin-compatible with an entire family of 10-bit,CMOS converters (SPT7835/40/50/55/60/61), which simplifies upgrades.The SPT7850 has incorpo-rated proprietary circuit design* CMOS processing technologies to achieve its advanced performance. Inputsand outputs are TTL/CMOS-compatible to interface withTTL/CMOS logic systems. Output data format is straight bnary.

The SPT7850 is available in 28-lead 300 mil PDIP and 32-lead small (7 mm square) TQFP packages over the commercial temperature range, and in a 28-lead SOICn package over the industrial temperature range.