Status
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MAX9955
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Active: In Production. But some versions of the family are Not Recommended for New Designs. See Ordering Information. |
Description
The MAX9955 high-speed, dual comparator/terminator
IC includes a dual comparator and a terminator for
each channel. The dual comparator features programmable
cable-droop compensation at its input and offers
low dispersion (timing variation) over a wide variety of
input conditions, programmable hysteresis, and differential
outputs. The terminator provides a 50Ω buffered termination to a programmed level. The MAX9955 comparator
operating range is -1.1V to +3.6V, and the terminator
operating range is -1.0V to +3.5V.
The MAX9955 comparator provides high-speed, open-collector
outputs with internal 50Ω termination resistors that are compatible with doubly terminated 0.4VP-P
(typ) CML. These features significantly reduce the discrete
component count on the circuit board.
The MAX9955 power dissipation is only 800mW per
channel under static conditions and 850mW per channel
at 2Gbps toggling conditions. The device is available
in a 64-pin, 10mm x 10mm body and 0.5mm pitch
TQFP. A 5mm x 5mm exposed die paddle on the top of
the package facilitates efficient heat removal. The
device is specified to operate with an internal die temperature
of +50°C to +90°C, and features a die temperature
monitor output.
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Data Sheet
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