SPT7861

• Monolithic 40 MSPS converter
• 160 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
• Radar receivers
• IR imaging
• Digital communications

The SPT7861 is a 10-bit monolithic, low-cost, ultralow-power analog-to-digital converter capable of minimum word rates of 40 MSPS. This is a pin-compatible improved version of the SPT7860. The on-chip track-and-hold func-tion assures excellent dynamic performance without the need for external components. The input drive require-ments are minimized due to the SPT7861's low input capacitance of only 5 pF.

Power dissipation is extremely low at only 160 mW typical at 40 MSPS with a power supply of +5.0 V. The digital out-puts are +3 V or +5 V, and are user selectable.The SPT7861 is pin-compatible with an entire family of 10-bit,CMOS converters (SPT7835/40/50/55/60/61),which sim-upgrades. The SPT7861 has incorporated propri-etary 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 SPT7861 is available in 28-lead SOIC and 32-lead small (7 mm square) TQFP packages over the commer-cial temperature range.