TYPICAL PERFORMANCE CHARACTERISTICS
30
Temperature Range: 0 ° C to 85 ° C
25
V IN
V KA = V REF
20
15
10
5
I K
0
-5
-10
-15
-20
-2
-1
0
1 1.23
2
3
V KA - Cathode Voltage (V)
Figure 3. Test Circuit for V KA =V REF
Figure 4. High Current Operating Characteristics
18
1.250
I K = 10mA
1.245
1.240
1.235
1.230
12
Temperature Range: 0 ° C to 85 ° C
85 °C
6
25 °C
1.225
-0 °C
1.200
0
1.150
1.100
-60
-30
0
30
60
90
120
-1.0
-0.5
0
0.5
1.0
1.5
T A - Ambient Temperature (°C)
Figure 5. Reference Voltage vs. Ambient Temperature
V KA - Cathode Voltage (V)
Figure 6. Low Current Operating Characteristics
* I OUT = 1.23V
* I OUT = 1.23V
R2
SPX385-1.2
R2
30V
SPX385-1.2
R1
100k
2
3
7
LM312
+
4
C1
150pF
6
R1
100k
2
3
7
LM312
+
4
C1
150pF
6
-1.5V to -27V
I OUT *
R2
1.5V to 27V
I OUT *
R2
-30V
Figure 7a. Precision 1 μ A to 1mA Current Sink
Figure 7b. Precision 1 μ A to 1mA Current Source
Date: 11/05/04
SPX385-1.2 Micropower Voltage Reference
3
? Copyright 2004 Sipex Corporation
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