LTC2054IS5-TRPBF 查看數據表（PDF） - Linear Technology

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LTC2054IS5-TRPBF

Single/Dual Micropower Zero-Drift Operational Amplifi ers

Linear Technology 

APPLICATIONS INFORMATION

cause the second form of clock feedthrough described

above, when averaged, dominate the DC input bias current

of the op amp below 70°C.

At temperatures above 70°C, the leakage of the ESD protec-

tion diodes on the inputs increases the input bias currents

of both inputs in the positive direction, while the current

caused by the charge injection stays relatively constant.

At elevated temperatures (above 70°C) the leakage current

begins to dominate and both the negative and positive

pins’ input bias currents are in the positive direction (into

the pins).

Extended Common Mode Range

The LTC2054/LTC2055 input stage is designed to allow

nearly rail-to-rail input common mode signals. In addition,

signals that extend beyond the allowed input common

mode range do not cause output phase inversion.

LTC2054/LTC2055

Voltage Follower with Input Exceeding

the Common Mode Range

1k

±3.75VP

SINE WAVE

2.5V

–

LTC2054/55

+

–2.5V

OUTPUT

100k

20545 F03

Extended Common Mode Range

2V

0V

–2V

2V

0V

–2V

AV = 1

500μs/DIV

RL = 100k

VS = ±2.5V

VIN = 500Hz 7.5VP-P

20545 F04

TYPICAL APPLICATIONS

Simple Differential Bridge Amplifier

5V

5V

1μF

LT1790-2.5

0.1μF

499k

10kΩ

BRIDGE

4– 5

LTC2054HV 1

3+

2

0.1μF 499k

–5V

AV = 100

20545 TA02

20545fc

11

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