8

LTC1047

1047fa

4mA to 20mA Transducer Amplifier

INPUT

0V TO 1V

INITIAL ACCURACY = 3% (LIMITED BY REFERENCE IN LT1120)

TRIM R1 FOR 4.00mA WITH 0.00V IN

TRIM R2 FOR 20.0mA WITH 1.00V IN

TO

LOOP

TO

LOOP

49.9Ω

1%

R2

61.9k

1%

R1

619K

1%

49.9k

1%

LTC1047 • TA04

2

1

5

8

13

7

6

1M

1k

2N2222

1M

4

2

3

7

8

4

5

6

–

+

1/2

LTC1047

–

+

1/2

LTC1047

LT1120

0.1µF

10µF

1000pF

+

TYPICAL APPLICATIO S