HI7106 データシートの表示（PDF） - Intersil

部品番号

コンポーネント説明

メーカー

HI7106

3½ Digit, LCD/LED Display, A/D Converter

Intersil 

HI7106

and select VREF = 0.341V. Suitable values for integrating

resistor and capacitor would be 20kΩ and 0.22µF. This

makes the system slightly quieter and also avoids a divider

network on the input. Another advantage of this system

occurs when a digital reading of zero is desired for VIN ≠ 0.

Temperature and weighing systems with a variable fare are

examples. This offset reading can be conveniently generated

by connecting the voltage transducer between IN HI and

COMMON and the variable (or fixed) offset voltage between

COMMON and IN LO.

Typical Applications

The HI7106 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 this A/D con-

verter.

Typical Applications

OSC 1 40

OSC 2 39

OSC 3 38

TEST 37

REF HI 36

REF LO 35

CREF 34

CREF 33

COMMON 32

IN HI 31

IN LO 30

A-Z 29

BUFF 28

INT 27

V - 26

G2 25

C3 24

A3 23

G3 22

BP 21

TO PIN 1

100kΩ

100pF

SET VREF

= 100mV

1kΩ 22kΩ

0.1µF

0.47µF

47kΩ

0.22µF

1MΩ

0.01µF

+

IN

-

+

9V

-

TO DISPLAY

TO BACKPLANE

OSC 1 40

OSC 2 39

OSC 3 38

TEST 37

REF HI 36

REF LO 35

CREF 34

CREF 33

COMMON 32

IN HI 31

IN LO 30

A-Z 29

BUFF 28

INT 27

V - 26

G2 25

C3 24

A3 23

G3 22

BP/GND 21

TO PIN 1

100kΩ

100pF

SET VREF

= 100mV

0.1µF

25kΩ 24kΩ

0.047µF

470kΩ

1MΩ

0.01µF

V+

+

IN

-

0.22µF

V-

TO DISPLAY

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

supply voltage (9V battery).

FIGURE 8. HI7106 USING THE INTERNAL REFERENCE

FIGURE 9. HI7106 RECOMMENDED COMPONENT VALUES

FOR 2V FULL SCALE

8

Share Link: