AMS285-2.5/AMS385-2.5
TYPICAL APPLICATIONS
(Continued)
0°C - 100°C Thermometer
°
°
0°C - 100°C Thermometer
°
°
1k
150
0-100µA M
I
OUT
R1
8k
R2
1k
R
AMS385-2.5
R3
100
R4
220
0-50µA
I
OUT
M
R1
4k
R2
1k
R
AMS385-2.5
R3
50
R4
100
V
+
LM334
V
-
3V
V
+
LM334
V
-
3V
Calibration
1. Short AMS385-2.5, adjust R3 for I
OUT
= temp at 1µA/°K
2. Remove short, adjust R2 for correct reading in
°C
Calibration
1. Short AMS385-2.5, adjust R3 for I
OUT
= temp at 1.8µA/°K
2. Remove short, adjust R2 for correct reading in
°F
Micropower* 5V Regulator
I
Q
V
+
LM334
V
-
R
47k
2N2905
2.2k
3
+
7
LM4250C
2
-
4
6
V
O
= 5V
I
L
≤
100mA
150pF
100k
+
4.7µF
TANTALUM
AMS385-2.5
10M
AMS385-2.5
2k
100k
V
IN
≥
5.2V
Micropower* 10V Reference
I
Q
V
IN
= 15V
500k
2
+
7
LM4250C
3
8
-
4
22M
150pF
1.5M
6
10V
8 1N457
1N457
500k
*I
Q
≅
40µA
*I
Q
≅
20µA standby current
Advanced Monolithic Systems, Inc.
6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
ADMOS [ ADVANCED MONOLITHIC SYSTEMS ]
