Adjustable Voltage Reference

Figure 12 shows the MAX5417/MAX5418/MAX5419 used

as the feedback resistors in multiple adjustable voltage-

reference applications. Independently adjust the output

changing the wiper positions of the MAX5417/

MAX5418/MAX5419.

Offset Voltage and Gain Adjustment

Connect the high and low terminals of one potentiometer

of a MAX5417 between the NULL inputs of a MAX410

and the wiper to the op amp’s positive supply to nullify

the offset voltage over the operating temperature range.

Install the other potentiometer in the feedback path to

adjust the gain of the MAX410 (see Figure 13).

Digital Potentiometers

______________________________________________________________________________________

13

W

H

L

MAX6160

MAX5417

MAX5418

MAX5419

+5V

GND

OUT

ADJ

200k

Ω

FOR THE MAX5419

Ω)

100k

Ω

FOR THE MAX5418

Ω)

50k

Ω

FOR THE MAX5417

Ω)

Figure 12. Adjustable Voltage Reference

6

8

1

7

3

2

W

H

L

R2

R1

5V

-5V

MAX410

4

MAX5417

MAX5418

MAX5419

Figure 13. Offset Voltage and Gain Adjustment Circuit

R1

W

H

L

MAX5417

MAX5418

MAX5419

R2

R3

H

W

L

C

Figure 11. Programmable Filter

L

GND

A0

1

2

8

7

H

W

SCL

SDA

TDFN

TOP VIEW

3

4

6

5

MAX5417

MAX5418

MAX5419

Pin Configuration

Chip Information

TRANSISTOR COUNT: 4637

PROCESS: BiCMOS