SPT1175

• 20 MSPS Maximum Conversion Rate
• Internal Sample-and-Hold Function
• 90 mW Power Dissipation
• Internal Voltage Reference
• Single +5.0 V Power Supply
• Three-State TTL-Outputs
• CMOS Compatible Clock

• Video Digitizing
• Image Scanners
• Personal Computer Video
• Medical Ultrasound
• Multimedia
• Digital Television

The SPT1175 is a CMOS two-step A/D converter capable ofdigitizing full scale analog input signals into 8-bit digital wordsat a sample rate of 20 MSPS.

For most applications,no external sample-and-hold orvideo driving amplifiers are required due to the device'snarrow aperture time,wide bandwidth, and low input capacitance.

The SPT1175 operates from a single +5.0 V power supplyand has an internal voltage reference which eliminates theneed for external reference circuitry.All digital inputs areCMOS compatible and the tri-state outputs are TTL-compat-ible.The SPT1175 is ideal for most video and imagethat require low power dissipation andlow cost.The SPT1175 is available in 24-lead plastic SOIC,plastic DIP,and PLCC packages over the commercial temperature range (0 to +70). It is also available in die form.