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AMS285-12 데이터시트(HTML) 4 Page - Advanced Monolithic Systems

부품명 AMS285-12
상세내용  MICROPOWER VOLTAGE REFERENCE DIODE
Download  8 Pages
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제조사  ADMOS [Advanced Monolithic Systems]
홈페이지  http://www.advanced-monolithic.com
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AMS285-12 데이터시트(HTML) 4 Page - Advanced Monolithic Systems

   
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Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS285-1.2/AMS385-1.2
TYPICAL APPLICATIONS (Continued)
0
°°C - 100°°C Thermometer
Lower Power Thermometer
0
°°C - 100°°C Thermometer
AMS385-1.2
150
R1
4k
R2
1k
R3
100
R4
220
1.5V
(1.3-1.6V)†
R
V-
V+
LM334
M
0-100
µA
I
OUT
Calibration
1. Short AMS385-1.2, adjust R3 for IOUT = temp at
1
µA/°K
2. Remove short, adjust R2 for correct reading in
°C
† I
Q at 1.3V
≅ 500 µA
IQ at 1.6V
≅ 2.4mA
LM334
M
AMS385-1.2
1.3 TO
1.6V‡
*
8k TO
12k†
* 2N3638 or 2N2907 select for inverse HFE
≅ 5
† Select for operation at 1.3V
‡ I
Q
≅ 600µA to 900 µA
AMS385-1.2
150
R1
2k
R2
1k
R3
50
R4
100
1.3-1.6V
R
V-
V+
LM334
M
0-50
µA
I
OUT
Calibration
1. Short AMS385-1.2, adjust R3 for IOUT = temp at
1.8
µA/°K
2. Remove short, adjust R2 for correct reading in
°F
Centigrade Thermometer
Micropower* 10V Reference
AMS385-1.2
V+
V-
R
R1
1k
V1
V2
LM334
90k
25k
27k
1.2k
2.3k
OUTPUT
1mV/° C
2.2k
1.5V†
Calibration
1. Adjust R1 so that V1 = temp at 1mV/
°K.
2. Adjust V2 to 273.2mV.
† I
Q for 1.3V to 1.6V battery voltage = 50
µA to 150µA
150pF
AMS385-1.2
3.5M
500k
22M
1M
7
4
6
3
2
-
+
V
IN = 15V
I
Q
10V
LM4250C
8
*IQ
≅ 20µA standby current


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