NJM2820 查看數據表（PDF） - Japan Radio Corporation
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NJM2820 Datasheet PDF : 7 Pages
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NJM2820, NJM2821, NJM2822
■TYPICAL CHARACTERISTICS
Reference Voltage vs. Cathode Current
1260
(VKA=VREF,Ta=25°C)
Reference Voltage vs. Cathode Current
1400
(VKA=VREF,Ta=25°C)
1255
1200
1250
1000
1245
800
1240
0
10
20
30
Cathode Current IK (mA)
Reference Voltage Change vs. Cathode Voltage
(IK=1mA,R1=Variable,R2=10kΩ,Ta=25°C)
4
3
2
1
0
0
5
10
15
Cathode Voltage VKA (V)
Dynamic Impedance
(IK=0.5~30mA,VKA=VREF,Ta=25°C)
1.2
1
0.8
0.6
0.4
0.2
0
1
10 100 1k 10k 100k
Cathode Current Frequency f (Hz)
600
0
20 40 60 80 100
Cathode Current IK (uA)
Cathode Current (Off Cond.) vs. Cathode Voltage
(VREF=0V,Ta=25°C)
1
0.8
0.6
0.4
0.2
0
0
5
10
15
Cathode Voltage VKA (V)
Voltage Gain · Phase vs. Frequency
(Fig.4 Test Circuit,Ta=25°C)
80
360
60
270
40
Gain
180
20
90
0
0
-20
-90
Phase
-40
-180
-60
-270
-80
100
1k 10k 100k 1M
Frequency f (Hz)
-360
10M
-4-
Ver.2009-11-12
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