ADC081500 General Description
The ADC081500 is a low power, high performance CMOS analog-to-digital converter that digitizes signals to 8 bits resolution 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 architecture, the fully differential comparator design, 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, 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 binary and the LVDS digital outputs are compliant with IEEE 1596.3-1996, with the exception of an adjustable common mode 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 Industrial (-40˚C TA +85˚C) temperature range.
ADC081500 Maximum Ratings
Supply Voltage (VA,VDR) 2.2V
Voltage on Any Input Pin −0.15V to (VA +0.15V)
Ground Difference
|GND - DR GND| 0V to 100 mV
Input Current at Any Pin (Note 3) ±25 mA
Package Input Current (Note 3) ±50 mA
Power Dissipation at TA 85˚C 2.0 W
ESD Susceptibility (Note 4)
Human Body Model 2500V
Machine Model 250V
Soldering Temperature, Infrared,
10 seconds, (Note 5), (Applies
to standard plated package only) 235˚C
Storage Temperature −65˚C to +150˚C
ADC081500 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
ADC081500 Connection Diagram
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