SPT7871
10-BIT, 100 MSPS TTL A/D CONVERTER
BLOCK DIAGRAM
NCLK (ECL)
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-1.0 V Reference
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Reference
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Internal
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3-Bit
DAC
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T/H
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Analog Input
AVCC
CLK (ECL)
ADC
T/H
Output
Latches
Buffers
D4
D3
D2
D1
D0
D9 (MSB)
D8
D7
D6
D5
D10 (Overrange)
MINV (CMOS/TTL)
LINV (CMOS/TTL)
VEE
AGND
DGND
VIN
DVCC
VT
*
VM
*
VB
*
*
Provided for reference decoupling purposes only.
APPLICATIONS
Professional Video
HDTV
Communications
Imaging
Digital Oscilloscopes
FEATURES
10-Bit, 100 MSPS Analog-to-Digital Converter
Monolithic Bipolar
Single-Ended Bipolar Analog Input
-1.0 V to +1.0 V Analog Input Range
Internal Sample-and-Hold
Internal Voltage Reference
Programmable Data Output Formats
Single Ended TTL Outputs
Differential ECL Clock Input
GENERAL DESCRIPTION
The SPT7871 is a 10-bit, 100 MSPS analog-to-digital con-
verter, with a two stage subranging flash/folder architecture.
The bipolar, single-ended analog input provides an easy
interface for most applications. Programmable data output
formats provide additional ease of implementation and flex-
ibility. The device supports high speed TTL outputs.
The resolution and performance of this device makes it well
suited for professional video and HDTV applications. The on-
chip track-and-hold provides for excellent AC performance
enabling this device to be a converter of choice for RF
communications and digital sampling oscilloscopes. The
SPT7871 is available in a 44L cerquad package in the
industrial temperature range and in die form.