ASM121 ETC-unknow, ASM121 Datasheet - Page 5

• Manufacturer Part Number: ASM121
• Description: Simistor ?emperature Sensor Ultra-low-power Silicon Thermistor
• Manufacturer: ETC-unknow

Typical Applications (cont.)
© Andigilog, Inc. 2004
aSM121
Figure 4. Parallel Output Temperature to Digital Converter (Full Scale = +125˚C)
Reference
U1
Voltage
Shunt
R4
3.3
5K
3.3
U3
15K
15K
2.5V
Figure 5. Thermostat / Fan Controller
+
_
aSM121
3.3V
U2
0.1PF
U2
1.75V
www.andigilog.com
R1
IN
V
REF
- 5 -
V
Temp
R2
Analog-to-Digital
Parallel Output
Converter
V
T
R3
U3
+
–
U1
8
CS
RD
WR
INTR
PARALLEL
DATA
OUTPUT
V
OUT
July 2005 - 70A04006
aSM121