LTC6943 查看數據表（PDF） - Linear Technology

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LTC6943

Micropower, Dual Precision Instrumentation Switched Capacitor Building Block

Linear Technology 

LTC6943

TYPICAL APPLICATIO S

0.01% Analog Multiplier

7.5k*

YINPUT

1µF

2N2907A

(FOR START-UP)

–5V

1/4 LTC6943

12

11

LT1004-1.2V

1k

–5V

1µF

5V

2– 7

LT1056

3+ 4

–5V

10

0.001µF †

6

14

1/4 LTC6943

XINPUT 5

4

30pF

22k

330k

1µF

OPERATE LTC6943 FROM ±5V

† POLYPROPYLENE, MOUNT CLOSE

*1% FILM RESISTOR

ADJUST OUTPUT TRIM

SO X • Y = OUTPUT ±0.01%

1

0.001µF †

80.6k*

20k

OUTPUT

TRIM

0.01µF

5V

2–

7

LT1056

3+

4

6

OUTPUT

XY ±0.01%

–5V

6943 • TA09

+

INPUT

–

43k

V+ = 5V

1N914

Single 5V Supply, Ultra Precision Low Power with

True Rail-to-Rail In/Out Instrumentation Amplifier

LTC6943

6

7

9

1µF

1µF

10

5V

3+ 5

LTC2054CS 1

4–

2

100Ω

99.9k

11

12

OUTPUT

AV = 1000

5

4

0.22µF

10k

1

1µF

1µF

NONPOLARIZED

2

16

14

15

0.0047

13

≈ –0.5V

3

INPUT AND OUTPUT VOLTAGE RANGE INCLUDES GROUND.

5V

INPUT REFERRED OFFSET ERRORS ARE TYPICALLY 3µV WITH

2µV OF PEAK-TO-PEAK DC TO 10Hz NOISE

CMRR ~ 120dB

6943 • TA10

6943f

9

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