2

Functional Block Diagrams

SIMPLE REFERENCE (1.2V OR LESS)

BUFFERED 10V REFERENCE USING A SINGLE SUPPLY

DOUBLE REGULATED 100mV REFERENCE FOR ICL7107 ONE-CHIP DPM CIRCUIT

+5V

6.8k

Ω

10k

Ω

ICL8069

4.7

µF

V-

V+

(NOTE 1)

LM108

ICL8069

V+

2

3

7

6

8

4

5

V-

1k

Ω

1k

Ω

8.2k

Ω

-

+

15k

Ω

+15V

0.01

µF

2.2k

Ω

+V

+5V

REF HI

COMMON

REF LO

V+

V-

ICL8069

10k

Ω

1k

Ω

ICL7107

ICL8069

ICL8069