LTC6255 datasheet(15/30 Pages) LINER

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LTC6752/LTC6752-1/

LTC6752-2/LTC6752-3/

LTC6752-4

6752fc

For more information www.linear.com/LTC6752

pin FuncTions

+IN: Positive Input of the Comparator. The voltage range

of this pin can go from VEE to VCC.

–IN: Negative Input of the Comparator. The voltage range

of this pin can go from VEE to VCC.

VCC:PositiveSupplyVoltagefortheLTC6752/LTC6752-1,

Positive Supply Voltage for the Input Stage of the

LTC6752-2/LTC6752-3/LTC6752-4.

VDD: Positive Supply Voltage for the Output Stage of the

LTC6752-2/LTC6752-3/LTC6752-4. Typically the voltage

is from 1.71V to 3.5V. See the section High Speed Board

Design Techniques for proper power supply layout and

bypassing.

VEE: Negative power supply, normally tied to ground. This

can be tied to a voltage other than ground as long as the

constraints for total supply voltage relative to VCC (and

VDD for separate supply operation) are maintained.

SHDN: Active low comparator shutdown, threshold is

0.6V above VEE. The comparator is enabled when this pin

is left unconnected.

LE/HYST: This pin allows the user to adjust the compara-

tor’s hysteresis as well as latch the output state if the pin

voltage is taken within 300mV above VEE. Hysteresis can

be increased or disabled by voltage, current or a resistor

to VEE. Leaving the pin unconnected results in a typical

hysteresis of 5mV.

Q: Comparator Output. Q is driven high when +IN > –IN

and driven low when +IN < –IN.

Q: Comparator Complementary Output (Available on

LTC6752-3 Only). Logical inversion of Q.

LTC6255 Fiches technique(PDF) 15 Page - Linear Technology