Features: • Monolithic 40 MSPS converter
• 175 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
Application• All high-speed applications where low power dissipation is required
• Video imaging
• Medical imaging
• Radar receivers
• IR imaging
• Digital communications
Pinout
SpecificationsSupply Voltages
AVDD...................................................................... +6 V
DVDD ..................................................................... +6 V
Input Voltages
Analog Input .............................. 0.5 V to AVDD +0.5 V
VREF .............................................................. 0 to AVDD
CLK Input ............................................................... VDD
AVDD DVDD .................................................. ±100 mV
AGND DGND .............................................. ±100 mV
Output
Digital Outputs ................................................... 10 mA
Temperature
Operating Temperature ................................ 0 to 70 °C
Junction Temperature ........................................ 175 °C
Lead Temperature, (soldering 10 seconds) ....... 300 °C
Storage Temperature............................ 65 to +150 °C
DescriptionThe SPT7860 is a 10-bit monolithic, low-cost, ultralow-power analog-to-digital converter capable of minimum word rates of 40 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 SPT7860's low input capacitance of only 5 pF.
Power dissipation is extremely low at only 175 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 SPT7860 is pin-compatible with entire family 10-bit,CMOS converters(SPT7835/40/50/55/60/61),which sim-plifies upgrades.The SPT7860 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 SPT7860 is available in 28-lead SOIC and 32-lead small (7 mm square) TQFP packages over the commer-cial temperature range.
SPT7860 Data Sheet
