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ADC081000 View Datasheet(PDF) - National ->Texas Instruments

Part NameDescriptionManufacturer
ADC081000 High Performance, Low Power 8-Bit, 1 GSPS A/D Converter National-Semiconductor
National ->Texas Instruments National-Semiconductor
ADC081000 Datasheet PDF : 30 Pages
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ADC081000
April 21, 2009
High Performance, Low Power 8-Bit, 1 GSPS A/D Converter
General Description
The ADC081000 is a low power, high performance CMOS
analog-to-digital converter that digitizes signals to 8 bits res-
olution at sampling rates up to 1.6 GSPS. Consuming a typical
1.4 Watts at 1 GSPS from a single 1.9 Volt supply, this device
is guaranteed to have no missing codes over the full operating
temperature range. The unique folding and interpolating ar-
chitecture, the fully differential comparator design, the inno-
vative design of the internal sample-and-hold amplifier and
the self-calibration scheme enable a very flat response of all
dynamic parameters beyond Nyquist, producing a high 7.5
ENOB with a 500 MHz input signal and a 1 GHz sample rate
while providing a 10-18 B.E.R. Output formatting is offset bi-
nary and the LVDS digital outputs are compliant with IEEE
1596.3-1996, with the exception of a reduced common mode
voltage of 0.8V.
The converter has a 1:2 demultiplexer that feeds two LVDS
buses, reducing the output data rate on each bus to half the
sampling rate. The data on these buses are interleaved in
time to provide a 500 MHz output rate per bus and a combined
output rate of 1 GSPS.
The converter typically consumes less than 10 mW in the
Power Down Mode and is available in a 128-lead, thermally
enhanced exposed pad LQFP and operates over the indus-
trial (-40°C TA +85°C) temperature range.
Features
Internal Sample-and-Hold
Single +1.9V ±0.1V Operation
Adjustable Output Levels
Guaranteed No Missing Codes
Low Power Standby Mode
Key Specifications
Resolution
Max Conversion Rate
ENOB @ 500 MHz Input
DNL
Conversion Latency
Power Consumption
Operating
Power Down Mode
Applications
Direct RF Down Conversion
Digital Oscilloscopes
Satellite Set-top boxes
Communications Systems
Test Instrumentation
8 Bits
1 GSPS (min)
7.5 Bits (typ)
±0.25 LSB (typ)
7 and 8 Clock Cycles
1.45 W (typ)
9 mW (typ)
Block Diagram
© 2009 National Semiconductor Corporation 200681
20068153
www.national.com
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