SPT7910
12-BIT, 10 MSPS, ECL, A/D CONVERTER
The SPT7910 analog-to-digital converter is industry's first
12-bit monolithic analog-to-digital converter capable of sample
rates greater than 10 MSPS. On board input buffer and track/
hold function assures excellent dynamic performance with-
out the need for external components. Drive requirement
problems are minimized with an input capacitance of only
5 pF.
Inputs and outputs are ECL to provide a higher level of noise
immunity in high speed system applications. An overrange
output signal is provided to indicate overflow conditions.
Output data format is straight binary. Power dissipation is
very low at only 1.4 watts with power supply voltages of +5.0
and -5.2 volts. The SPT7910 also provides a wide input
voltage range of
±2.0 volts.
The SPT7910 is available in a 32-lead ceramic sidebrazed
DIP package and in die form. A commercial temperature
range of 0 to +70
°C is currently offered.
GENERAL DESCRIPTION
FEATURES
• Monolithic
• 12-Bit 10 MSPS Converter
• 67 dB SNR @ 500 kHz Input
• On-Chip Track/Hold
• Bipolar
±2.0 V Analog Input
• Low Power (1.4 W Typical)
• 5 pF Input Capacitance
• ECL Outputs
APPLICATIONS
• Radar Receivers
• Professional Video
• Instrumentation
• Medical Imaging
• Electronic Warfare
• Digital Communications
• Digital Spectrum Analyzers
• Electro-Optics
Signal Processing Technologies, Inc.
4755 Forge Road, Colorado Springs, Colorado 80907, USA
Phone: (719) 528-2300
FAX: (719) 528-2370
VIN
12
DIGITAL
OUTPUT
4
4-BIT FLASH
CONVERTER
INPUT
BUFFER
ANALOG GAIN
COMPRESSION
PROCESSOR
TRACK AND HOLD
AMPLIFIERS
ASYNCHRONOUS
SAR
ERROR
CORRECTION,
DECODING
AND
OUTPUT ECL
DRIVERS
8
BLOCK DIAGRAM
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