7106_15 Datasheet, PDF (16/18 Pages) Unisonic Technologies – CONVERTERS

7106
„ TYPICAL APPLICATIONS(Cont.)
CMOS IC
OSC1 40
OSC2 39
TO PIN 1
91kΩ
OSC3 38
TEST 37
REF HI 36
100pF
SCALE
FACTOR
ADJUST
REF LO 35
CREF+ ₃₄
CREF-
0.1µ F
33
100kΩ 1MΩ
100kΩ 220kΩ
COMMON 32
IN HI 31
IN LO 30
A-Z 29
BUFF 28
0.01µF
ZERO
ADJUST
0 . 47µF
47 kΩ
INT 27
V- 26
0 . 22µF
G2 25
C3 24
A3 23
TO DISPLAY
G3 22
BP 21
TO BACKPLANE
22kΩ
SILICON NPN
MPS 3704OR
SIMILAR
9V
A sillicon diode- connected transistor has a temperature coefficient of about -2 mV/ .
Calibration is achieved by placing the sensing transistor in ice water and adjusting the
zeroing potentiometer for a 000.0 re.ading. The sensor should then be placed in boiling
water and the scale - factor potentiometer adjusted for a 100.0 reading
Fig.9 Used as A Digital Centigrade Thermometer
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
16 of 18
QW-R502-018.E