UTC7106

CMOS IC

11

QW-R502-018,B

transducer is 0.662V. Instead of dividing the input down to 200mV, the designer should use the input voltage directly

makes the system slightly quieter and also avoids a divider network on the input.

TYPICAL APPICATIONS

The UTC 7106 may be used in a wide variety of configurations. The circuits which follow show some of the

possibilities, and serve to illustrate the exceptional versatility of these A/D converters.

OSC 1

OSC 2

OSC 3

TEST

REF HI

REF LO

COMMON

IN HI

IN LO

A-Z

BUFF

INT

V -

G2

C3

A3

G3

BP

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

TO PIN 1

91kΩ

100pF

0.1μF

0. 01μF

0. 47μF

1kΩ

22kΩ

1MΩ

47kΩ

0. 22μF

=100mV

9V

IN

+

-

+

-

TO DISPLAY

TO BACKPLANE

Values shown are for 200mV full scale,3 readings/sec.,floating

supply voltage(9V battery).

FIGURE 7. USING THE INTERNAL REFERENCE