LTC1043

12

1043fa

Quad Single 5V Supply, Low Hold Step, Sample-and-Hold

Single Supply Precision Linearized Platinum RTD Signal Conditioner

LTC1043 • A15

NC

OUTPUT

OUTPUT

NC

5V

2

3

11

4

1

11

7

8

0.01µF

0.01µF

6

5

7

12

13

14

–

+

1/4 LT1014

–

+

1/4 LT1014

– 5V

HOLD

SAMPLE

LTC1043 • A16

NC

OUTPUT

OUTPUT

NC

13

12

14

2

6

5

0.01µF

0.01µF

9

10

8

3

18

15

16

17

4

–

+

1/4 LT1014

–

+

1/4 LT1014

LTC1043 • A17

887Ω

1mA

1% FILM RESISTOR

TRIM SEQUENCE:

SET SENSOR TO 0°C VALUE. ADJUST ZERO FOR 0V OUT

SET SENSOR TO 100°C VALUE. ADJUST GAIN FOR 1,000V OUT

SET SENSOR TO 400°C VALUE. ADJUST LINEARITY FOR 4,000V OUT

REPEAT AS REQUIRED

1µF

8.06k*

1k*

5k

0V TO 4V = 0°C TO 400°C

±0.05°C

1µF

2k

100Ω

AT 0°C

12

11

7

1µF

0.1µF

1/2 LTC1043

8

14

13

5

1µF

1/2 LTC1043

6

18

16

5V

5V

250k*

(LINEARITY CORRECTION LOOP)

2.4k

2.74k*

8.25k*

50k

ZERO

ADJUST

LT1009

2.5V

10k*

3

2

4

1

8

5

6

7

1k

GAIN

ADJUST

–

+

1/2 LT1013

–

+

1/2 LT1013

4

15

17

0.01µF

3

2

*

TYPICAL APPLICATIO S