LT6002 datasheet(11/26 Pages) AD

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LTC6255/LTC6256/LTC6257

Rev E

For more information www.analog.com

PIN FUNCTIONS

–IN: Inverting Input of the Amplifier. Voltage range of this

pin can go from V– – 0.1V to V+ + 0.1V.

+IN: Non-Inverting Input of Amplifier. This pin has the

same voltage range as –IN.

V+: Positive Power Supply. Typically the voltage is from

1.8V to 5.25V. Split supplies are possible as long as the

voltage between V+ and V– is between 1.8V and 5.25V. A

bypass capacitor of 0.1µF as close to the part as possible

should be used between power supply pins or between

supply pins and ground.

V–: Negative Power Supply. It is normally tied to ground.

It can also be tied to a voltage other than ground as long

as the voltage between V+ and V– is from 1.8V to 5.25V.

If it is not connected to ground, bypass it with a capacitor

of 0.1µF as close to the part as possible.

SHDN: Active Low Shutdown. Shutdown threshold is 0.6V

above negative rail. If left unconnected, the amplifier will

be on.

OUT:AmplifierOutput.Thevoltagerangeextendstowithin

millivolts of each supply rail.

SIMPLIFIED SCHEMATIC

Figure 1. LTC6255/LTC6256/LTC6257 Simplified Schematic

Q17

Q18

ESDD4

–IN

+IN

V–

Q12

Q16

ESDD3

V+

ESDD1

V+

ESDD2

V–

V+

SHDN

V–

ESDD5

ESDD6

VBIAS

Q19

Q11

Q10

Q13

Q15

OUT

Q14

BUFFER AND

OUTPUT BIAS

625567 F01

LOGIC

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