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ADC081500 View Datasheet(PDF) - National ->Texas Instruments

Part NameDescriptionManufacturer
ADC081500 High Performance, Low Power, 8-Bit, 1.5 GSPS A/D Converter National-Semiconductor
National ->Texas Instruments National-Semiconductor
ADC081500 Datasheet PDF : 34 Pages
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ADC081500
April 21, 2009
High Performance, Low Power, 8-Bit, 1.5 GSPS A/D
Converter
General Description
The ADC081500 is a low power, high performance CMOS
analog-to-digital converter that digitizes signals to 8 bits res-
olution at sample rates up to 1.7 GSPS. Consuming a typical
1.2 W at 1.5 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 7.3
ENOB with a 748 MHz input signal and a 1.5 GHz sample rate
while providing a 10-18 B.E.R. Output formatting is offset bi-
nary and the LVDS digital outputs are compatible with IEEE
1596.3-1996, with the exception of an adjustable output offset
voltage between 0.8V and 1.2V.
The converter output has a 1:2 demultiplexer that feeds two
LVDS buses and reduces the output data rate on each bus to
one-half the sample rate.
The converter typically consumes less than 3.5 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
Choice of SDR or DDR output clocking
Multiple ADC Synchronization Capability
Guaranteed No Missing Codes
Serial Interface for Extended Control
Fine Adjustment of Input Full-Scale Range and Offset
Duty Cycle Corrected Sample Clock
Key Specifications
Resolution
Max Conversion Rate
Bit Error Rate
ENOB @ 748 MHz Input
DNL
Power Consumption
Operating
Power Down Mode
8 Bits
1.5 GSPS (min)
10-18 (typ)
7.3 Bits (typ)
±0.15 LSB (typ)
1.2 W (typ)
3.5 mW (typ)
Applications
Direct RF Down Conversion
Digital Oscilloscopes
Satellite Set-top boxes
Communications Systems
Test Instrumentation
Block Diagram
© 2009 National Semiconductor Corporation 201531
20153153
www.national.com
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