SPT7824
10-BIT, 40 MSPS, TTL OUTPUT A/D CONVERTER
FEATURES
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Monolithic 40 MSPS Converter
On-Chip Track/Hold
Bipolar
±2.0
V Analog Input
57 dB SNR @ 3.58 MHz Input
Low Power (1.0 W Typical)
5 pF Input Capacitance
TTL Outputs
APPLICATIONS
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Medical Imaging
Professional Video
Radar Receivers
Instrumentation
Electronic Warfare
Digital Communications
GENERAL DESCRIPTION
The SPT7824 A/D converter is a 10-bit monolithic converter
capable of word rates a minimum of 40 MSPS. On board
track/hold function assures excellent dynamic performance
without the need for external components. Drive require-
ment problems are minimized with an input capacitance of
only 5 pF.
Inputs and outputs are TTL compatible to interface with TTL
logic systems. An overrange output signal is provided to
indicate overflow conditions. Output data format is straight
binary. Power dissipation is very low at only 1.0 watt with
power supply voltages of +5.0 and -5.2 volts. The SPT7824
also provides a wide input voltage swing of
±2.0
volts.
The SPT7824 is available in 28-lead ceramic sidebrazed DIP,
PDIP and SOIC packages over the commercial, industrial and
military temperature ranges. Consult the factory for availabil-
ity of die and /833 versions.
BLOCK DIAGRAM
Analog
Input
Coarse
A/D
4
Analog
Prescaler
T/H Amplifier
Bank
Decoding Network
Digital
Output
10
Successive Interpolation
Stage i
Successive Interpolation
Stage i+1
Successive Interpolation
Stage N
CADEKA [ CADEKA MICROCIRCUITS LLC. ]
