SSM2220_15 Datasheet, PDF (5/12 Pages) Analog Devices – Audio Dual Matched PNP Transistor

Data Sheet
TYPICAL PERFORMANCE CHARACTERISTICS
SSM2220
V_CE = 5V
I_C = 1mA
1s
T_A = 25°C
40nV
0V
–40nV
20mV
VERTICAL = 40nV/DIV
HORIZONTAL = 1s/DIV
Figure 2. Low Frequency Noise
14
12
R_S = 1kΩ
10
V_CE = 5V
f = 1kHz
8
R_S = 100kΩ
6
4
R_S = 10kΩ
2
0
0.001
0.01
0.1
1
COLLECTOR CURRENT (mA)
Figure 3. Noise Figure vs. Collector Current
0.5
T_A = 25°C
0.4 ^VCB ^{= 0V}
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
10^–8
10^–7
10^–6
10^–5
10^–4
COLLECTOR CURRENT (A)
10^–3
Figure 4. Emitter to Base Log Conformity
250
T_A = 25°C
V_CB = 0V
200
150
R_S = 100kΩ
100
R_S
R_S
f = 1kHz
50
R_S = 10kΩ
R_S = 1kΩ
0
1
10
100
1000
COLLECTOR CURRENT (µA)
Figure 5. Total Noise vs. Collector Current
6
T_A = 25°C
V_CB = 0V
5
4
10Hz
3
2
1
100Hz
0
0
3
6
9
12
COLLECTOR CURRENT (mA)
Figure 6. Noise Voltage Density vs. Collector Current
1k
T_A = 25°C
V_CB = 0V
100
10
I_C = 10µA
I_C = 100µA
1
I_C = 1mA
0.1
0.1
1
10
100
1k
10k
100k
FREQUENCY (Hz)
Figure 7. Noise Voltage Density vs. Frequency
Rev. C | Page 5 of 12