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ADC08500 Datasheet

500 MSPS A/D Converter

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June 2007
ADC08500
High Performance, Low Power 8-Bit, 500 MSPS A/D
Converter
General Description
The ADC08500 is a low power, high performance CMOS
analog-to-digital converter that digitizes signals to 8 bits res-
olution at sampling rates up to 500 MSPS. Consuming a
typical 0.8 Watts at 500 MSPS from a single 1.9 Volt supply,
this device is guaranteed to have no missing codes over the
www.DataSheeftu4lUl o.cpoemrating temperature range. The unique folding and in-
terpolating architecture, the fully differential comparator de-
sign, the innovative design of the internal sample-and-hold
amplifier and the self-calibration scheme enable a very flat
response of all dynamic parameters beyond Nyquist, produc-
ing a high 7.5 ENOB with a 250 MHz input signal and a 500
MHz sample rate while providing a 10-18 B.E.R. Output for-
matting is offset binary and the LVDS digital outputs are
compatible with IEEE 1596.3-1996, with the exception of an
adjustable common mode voltage between 0.8V and 1.2V.
The converter has a 1:2 demultiplexer that feeds two LVDS
buses and reduces the output data rate on each bus to half
the sampling 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 @ 250 MHz Input
DNL
Power Consumption
Operating
Power Down Mode
8 Bits
500 MSPS (min)
10-18 (typ)
7.5 Bits (typ)
±0.15 LSB (typ)
0.8 W (typ)
3.5 mW (typ)
Applications
Direct RF Down Conversion
Digital Oscilloscopes
Satellite Set-top boxes
Communications Systems
Test Instrumentation
Block Diagram
© 2007 National Semiconductor Corporation 202064
20206453
www.national.com


National Semiconductor Electronic Components Datasheet

ADC08500 Datasheet

500 MSPS A/D Converter

No Preview Available !

Ordering Information
Industrial Temperature Range
(-40°C < TA < +85°C)
ADC08500CIYB
ADC08500DEV
Pin Configuration
www.DataSheet4U.com
NS Package
128-Pin Exposed Pad LQFP
Development Board
* Exposed pad on back of package must be soldered to ground plane to ensure rated performance.
20206401
www.national.com
2


Part Number ADC08500
Description 500 MSPS A/D Converter
Maker National Semiconductor
Total Page 30 Pages
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