SPT7840

• Monolithic 10 MSPS converter
• 100 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 SPT7840 is a 10-bit monolithic, low-cost, ultralow-power analog-to-digital converter capable of minimum word rates of 10 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 SPT7840's low input capacitance of only 5 pF.

Power dissipation is extremely low at only 100 mW typical(120 mW maximum) at 10 MSPS with a power supply of +5.0 V. The digital outputs are +3 V or +5 V, and are user selectable. The SPT7840 is pin-compatible with an entire family of 10-bit, CMOS converters (SPT7835/40/50/55/60/61),which simplifies upgrades. SPT7840 has incorpo-rated 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 SPT7840 is available in a 28-lead SOIC package over the industrial temperature range, and a 32-lead small (7 mm square) TQFP package over the commercial temperature range.