Data Sheet

J109 / MMBFJ108 — N-Channel Switch
Typical Performance Characteristics
Figure 3. Common Drain-Source Figure 4. Parameter Interactions
Figure 5. Common Drain-Source
Figure 6. Common Drain-Source
Figure 7. Normalized Drain Resistance vs.
Bias Voltage
Figure 8. Noise Voltage vs. Frequency
Common Drain-Source
0 0.4 0.8 1.2 1.6 2
0
20
40
60
80
100
V - DRAIN-SOURCE VOLTAGE (V)
I - DRAIN CURRENT (mA)
DS
D
T = 25캜
TYP V = - 5.0 V
GS(off)
A
- 4.0 V
- 5.0 V
- 3.0 V
- 2.0 V
- 1.0 V
V = 0 V
GS
°C
Parameter Interactions
0.1 0.5 1 5 10
5
10
50
100
10
50
100
500
1,000
V - GATE CUTOFF VOLTAGE (V)
r - DRAIN "ON" RESISTANCE
GS (OFF)
DS
I @ V = 5.0V, V = 0 PULSED
r @ V = 100mV, V = 0
V @ V = 5.0V, I = 3.0 nA
GS(off)
DSS
r
DS
I
DSS
(
Ω
)
DS
DS
D
GS
GS
DSS
I - DRAIN CURRENT (mA)
DS
DS
_
__
_
_
-20-16-12-8-40
10
100
V - GATE-SOURCE VOLTAGE (V)
C (C ) - CAPACITANCE (pF)
GS
ts
C (V = 5.0V)
iss
f = 0.1 - 1.0 MHz
DS
C (V = 0 )
rss
DS
rs
012345
0
10
20
30
40
50
V - DRAIN-SOURCE VOLTAGE (V)
I - DRAIN CURRENT (mA)
DS
D
- 0.4 V
- 0.5 V
- 0.3 V
- 0.2 V
- 0.1 V
V = 0 V
GS
T = 25
獤
獤獤
獤
TYP V = - 0.7 V
GS(off)
A
°
°°
°C
0 0.2 0.4 0.6 0.8 1
1
2
5
10
20
50
100
V /V - NORMALIZED GATE-SOURCE VOLTAGE (V)
r - NORMALIZED RESISTANCE
GS
DS
r =
DS
V @ 5.0V, 10
μ
μμ
μ
A
GS(off)
r
DS
________
V
GS(off)
V
GS
1 -
GS(off)
0.01 0.03 0.1 0.5 1 2 10 100
1
5
10
50
100
f - FREQUENCY (kHz)
e - NOISE VOLTAGE (nV / Hz)
n
V = 10V
BW = 6.0 Hz @ f = 10 Hz, 100 Hz
= 0.21 @ f
≥
≥≥
≥
1.0 kHz
DG
I = 10 mA
D
I = 1.0 mA
D
√
√√ √
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