GENERAL DESCRIPTION

The SPT7835 is a 10-bit monolithic, low-cost, ultralow power analog-to-digital converter capable of minimum word rates of 5 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 SPT7835’s low input capacitance of only 5 pF.

Power dissipation is extremely low at only 75 mW typical at 5 MSPS with a power supply of +5.0 V. The digital outputs are +3 V or +5 V, and are user selectable. The SPT7835 is pin-compatible with an entire family of 10-bit, CMOS converters (SPT7835/40/50/55/60/61), which simplifies upgrades. The SPT7835 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.

FEATURES

• Monolithic 5 MSPS converter

• 75 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

• IR imaging

• Scanners

• Digital communications