REF01

Rev. H | Page 8 of 12

APPLICATIONS

U1

REF01

TEMP TRIM

GND

pot

10k

Ω

R2

1k

Ω

R1

470k

Ω

Figure 12. Output Adjustment

The REF01 trim terminal can be used to adjust the output

voltage over a 10 V ± 300 mV range. This feature lets the

system designer trim system errors by setting the reference

to a voltage other than 10 V. The output also can be set exactly

to 10.000 V or to 10.240 V for binary applications.

Adjustment of the output does not significantly affect the

temperature performance of the device. The temperature

coefficient change is approximately 0.7 ppm/°C for 100 mV

of output adjustment.

GND

–18V

+18V

REF01

Figure 13. Burn-In Circuit

REF01

DAC08

OP02

0.1

µF

+15V

4

6

5

10k

Ω

5k

Ω

5k

Ω

5k

Ω

+15V

–15V

–15V

+15V

LSB

MSB

2

B1 B2 B3 B4 B5 B6 B7 B8

V+

V–

2

4

B1 B2 B3 B4 B5 B6 B7 B8

E

POS. FULL SCALE –1LSB

1

1

1

1

1

1

1

1

+4.960

ZERO SCALE

1

0

0

0

0

0

0

0

0.000

NEG. FULL SCALE +1LSB

0

0

0

0

0

0

0

1

–4.960

NEG. FULL SCALE

0

0

0

0

0

0

0

0

–5.000

O

GND

Figure 14. Burn-In Circuit

GND

REF01

TRIM

+

–

10V

100k

Ω

1.1mA

2

6

5

4

9V

9V

0.1

µF

Figure 15. Precision Calibration Standard

GND

TRIM

REF01

15V

2

6

5

4

R

10V

R

+ 1mA

VOLTAGE COMPLIANCE: –25V TO +3V

Figure 16. Current Source

2

+15V

4

DAC08

+15V

3.9M

Ω

5k

Ω

REF01

5k

Ω

5k

Ω

1k

Ω

–15V +15V

–15V

SERIAL

OUTPUT

START

CONVERSION

COMPLETE

TTL CLOCK

INPUT 2.25MHz

CONNECT START TO

CONVERSION COMPLETE

FOR CONTINUOUS

CONVERSION

0.1

µF

0.01

µF

B1

B2

B3

B4

B5

B6

B7

B8

5

6

14

15

7

6

58 9 10 11 12 1

3

4

5

6

11

12

13

14

1

10

2

9

7

2

4

3

2

1

4

7

8

16

GND

313

CMP01C

TRIM

ANALOG

INPUT

0V TO +10V

AM2592

SUCCESSIVE-

APPROXIMATION

REGISTER

Figure 17. DAC Reference