Darlington Amplifier Transistors
MMBTA1xLT1
NOISE CHARACTERISTICS
(V
CE
= 5.0 Vdc, T
A
= 25°C)
500
2.0
BANDWIDTH = 1.0 Hz
R ~0
~
S
BANDWIDTH = 1.0 Hz
e
n
, NOISE VOLTAGE (nV)
I
n
, NOISE CURRENT (pA)
200
1.0
0.7
0.5
0.3
0.2
100
50
10
µA
100µA
I
C
=1.0mA
20
10
5.0
0.1
100µA
10µA
I
C
=1.0mA
0.07
0.05
0.03
10
20
50 100
200
500 1.0k 2.0k
5.0k 10k 20k
50k 100k
0.02
10
20
50 100
200
500 1.0k 2.0k
5.0k 10k 20k
50k 100k
f, FREQUENCY (Hz)
f, FREQUENCY (Hz)
Figure 2. Noise Voltage
V
T
, TOTAL WIDEBAND NOISE VOLTAGE (nV)
200
Figure 3. Noise Current
500
BANDWIDTH = 10 Hz TO 15.7 kHz
100
70
50
BANDWIDTH = 10 Hz TO 15.7 kHz
I
C
= 10
µA
NF, NOISE FIGURE (dB)
200
100
50
10
µA
100
µA
30
20
100
µA
20
10
5.0
1.0
1.0 mA
I
C
= 1.0 mA
10
1.0
2.0
5.0
10
20
50
100
200
500
1.0k
2.0
5.0
10
20
50
100
200
500
1.0k
R
S
, SOURCE RESISTANCE (kΩ)
R
S
, SOURCE RESISTANCE (kΩ)
Figure 4. Total Wideband Noise Voltage
Figure 5. Wideband Noise Figure
2012-11
WILLAS ELECTRONIC CORP.
WILLAS [ WILLAS ELECTRONIC CORP ]
