LTC6943

9

6943f

0.01% Analog Multiplier

6943 • TA09

0.001µF

1µF

1k

LT1004-1.2V

2N2907A

(FOR START-UP)

5V

OPERATE LTC6943 FROM ±5V

POLYPROPYLENE, MOUNT CLOSE

1% FILM RESISTOR

ADJUST OUTPUT TRIM

SO X • Y = OUTPUT ±0.01%

1µF

1µF

2

3

4

6

7

1/4 LTC6943

10

12

5V

0.01µF

–5V

2

3

4

7

6

–

+

LT1056

–5V

–5V

–5V

30pF

22k

330k

–

+

LT1056

11

0.001µF

1/4 LTC6943

1

14

4

5

7.5k*

80.6k*

20k

OUTPUT

TRIM

OUTPUT

XY ±0.01%

†

†

†

*

TYPICAL APPLICATIO S

Single 5V Supply, Ultra Precision Low Power with

True Rail-to-Rail In/Out Instrumentation Amplifier

6943 • TA10

0.0047

INPUT AND OUTPUT VOLTAGE RANGE INCLUDES GROUND.

INPUT REFERRED OFFSET ERRORS ARE TYPICALLY 3µV WITH

2µV OF PEAK-TO-PEAK DC TO 10Hz NOISE

CMRR ~ 120dB

10

9

6

11

INPUT

OUTPUT

10k

1µF

1µF

100Ω

43k

2

1

5

5V

3

4

LTC6943

12

14

3

2

1

1µF

1µF

NONPOLARIZED

4

13

1N914

5V

0.22µF

99.9k

5

16

7

+

–

–

+

15

≈ –0.5V

~

LTC2054CS