LT1014DS データシートの表示（PDF） - Linear Technology

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LT1014DS

Quad Precision Op Amp (LT1014) Dual Precision Op Amp (LT1013)

Linear Technology 

TYPICAL APPLICATIONS

5V Powered Precision Instrumentation Amplifier

LT1013/LT1014

0.068

TO

INPUT

8

CABLE SHIELDS

9

LT1014

10

20k

–INPUT

1µF

20k

+INPUT

+5V

†

†

†

†

+5V

200k*

2–

1

LT1014

3+

RG (TYP 2k)

200k*

6–

7

LT1014

5+

10k*

10k*

+5V

10k

13 – 4

LT1014

12 +

10k

11

10k* 10k*

14

OUTPUT

*1% FILM RESISTOR. MATCH 10k's 0.05%

GAIN EQUATION: A =

400,000

RG

+

1.

†FOR HIGH SOURCE IMPEDANCES,

USE 2N2222 AS DIODES.

15k

+9V

2– 4

LT1014

3+

11

100k

+9V

15k

+9V

3k

9V Battery Powered Strain Gauge Signal Conditioner

+9V

1N4148 22M

1

4.7k

330Ω

47µF

2N2219

100k

0.01

TO A/D RATIO

REFERENCE

100k

100k

15

0.068

14

350Ω

STRAIN GAUGE

1

BRIDGE

13

6–

LT1014

7 499 13 –

5+

LT1014

14

TO A/D

12 +

499

7 74C221

0.068

6

9

5

9–

100k

LT1014

8

10 +

TO A/D

CONVERT COMMAND

SAMPLED OPERATION GIVES LOW AVERAGE OPERATING CURRENT ≈ 650µA.

4.7k–0.01µF RC PROTECTS STRAIN BRIDGE FROM LONG TERM DRIFTS DUE TO

HIGH ∆V/∆T STEPS.

11

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