MPSA18 Просмотр технического описания (PDF) - Motorola => Freescale
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MPSA18 Datasheet PDF : 6 Pages
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NOISE CHARACTERISTICS
(VCE = 5.0 Vdc, TA = 25°C)
30
BANDWIDTH = 1.0 Hz
20
IC = 10 mA
RS ≈ 0
NOISE VOLTAGE
30
20
BANDWIDTH = 1.0 Hz
RS ≈ 0
MPSA18
3.0 mA
10
1.0 mA
7.0
5.0
f = 10 Hz
10
100 Hz
7.0
10 kHz
1.0 kHz
5.0
3.0
10 20
300 µA
50 100 200 500 1 k 2 k 5 k 10 k 20 k 50 k 100 k
f, FREQUENCY (Hz)
Figure 2. Effects of Frequency
3.0
0.01 0.02
100 kHz
0.05 0.1 0.2 0.5 1.0 2.0
IC, COLLECTOR CURRENT (mA)
5.0 10
Figure 3. Effects of Collector Current
10
7.0
BANDWIDTH = 1.0 Hz
5.0
IC = 10 mA
3.0
2.0
3.0 mA
1.0
1.0 mA
0.7
0.5
300 µA
0.3
100 µA
0.2
RS ≈ 0
0.1
10 µA
30 µA
10 20 50 100 200 500 1 k 2 k 5 k 10 k 20 k
f, FREQUENCY (Hz)
50 k 100 k
Figure 4. Noise Current
20
16
BANDWIDTH = 10 Hz to 15.7 kHz
12
IC = 1.0 mA
8.0
500 µA
100 µA
4.0
10 µA
0
10 20
50 100 200 500 1 k 2 k 5 k 10 k 20 k 50 k 100 k
RS, SOURCE RESISTANCE (OHMS)
Figure 5. Wideband Noise Figure
100 Hz NOISE DATA
300
200 BANDWIDTH = 1.0 Hz
IC = 10 mA
100
100 µA
70
3.0 mA
50
1.0 mA
30
300 µA
20
30 µA
10
7.0
5.0
3.0
10 20
10 µA
50 100 200 500 1 k 2 k 5 k 10 k 20 k 50 k 100 k
RS, SOURCE RESISTANCE (OHMS)
20
16
IC = 10 mA
3.0 mA
1.0 mA
12
300 µA
8.0
100 µA
4.0
30 µA
10 µA
BANDWIDTH = 1.0 Hz
0
10 20 50 100 200 500 1 k 2 k 5 k 10 k 20 k 50 k 100 k
RS, SOURCE RESISTANCE (OHMS)
Figure 6. Total Noise Voltage
Figure 7. Noise Figure
Motorola Small–Signal Transistors, FETs and Diodes Device Data
3
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