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BF961 Datasheet(PDF) 2 Page - Vishay Siliconix

Part No. BF961
Description  N-Channel Dual Gate MOS-Fieldeffect Tetrode, Depletion Mode
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Maker  VISHAY [Vishay Siliconix]
Homepage  http://www.vishay.com
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BF961 Datasheet(HTML) 2 Page - Vishay Siliconix

   
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Document Number 85002
Rev. 1.5, 25-Nov-04
VISHAY
BF961
Vishay Semiconductors
Electrical DC Characteristics
Tamb = 25 °C, unless otherwise specified
Electrical AC Characteristics
Tamb = 25 °C, unless otherwise specified
VDS = 15 V, ID = 10 mA, VG2S = 4 V, f = 1 MHz
Typical Characteristics (Tamb = 25
°C unless otherwise specified)
Parameter
Test condition
Part
Symbol
Min
Typ.
Max
Unit
Drain - source breakdown
voltage
ID = 10 µA, - VG1S = - VG2S = 4 V
V(BR)DS
20
V
Gate 1 - source breakdown
voltage
± IG1S = 10 mA, VG2S = VDS = 0
± V(BR)G1SS
814
V
Gate 2 - source breakdown
voltage
± IG2S = 10 mA, VG1S = VDS = 0
± V(BR)G2SS
814
V
Gate 1 - source leakage current ± VG1S = 5 V, VG2S = VDS = 0
± IG1SS
100
nA
Gate 2 - source leakage current ± VG2S = 5 V, VG1S = VDS = 0
± IG2SS
100
nA
Drain current
VDS = 15 V, VG1S = 0, VG2S = 4 V BF961
IDSS
420
mA
BF961A
IDSS
4
10.5
mA
BF961B
IDSS
9.5
20
mA
Gate 1 - source cut-off voltage
VDS = 15 V, VG2S = 4 V,
ID = 20 µA
- VG1S(OFF)
3.5
V
Gate 2 - source cut-off voltage
VDS = 15 V, VG1S = 0, ID = 20 µA- VG2S(OFF)
3.5
V
Parameter
Test condition
Symbol
Min
Typ.
Max
Unit
Forward transadmittance
| y21s |12
15
mS
Gate 1 input capacitance
Cissg1
3.7
pF
Gate 2 input capacitance
VG1S = 0, VG2S = 4 V
Cissg2
1.6
pF
Feedback capacitance
Crss
25
fF
Output capacitance
Coss
1.6
pF
Power gain
GS = 2 mS, GL = 0.5 mS,
f = 200 MHz
Gps
20
dB
AGC range
VG2S = 4 to - 2 V, f = 200 MHz
∆G
ps
50
dB
Noise figure
GS = 2 mS, GL = 0.5 mS,
f = 200 MHz
F1.8
2.5
dB
Figure 1. Total Power Dissipation vs. Ambient Temperature
0
50
100
150
200
250
300
0
20
40
60
80
100 120 140 160
96 12159
Tamb - Ambient Temperature ( °C)
Figure 2. Drain Current vs. Drain Source Voltage
0
2
4
6
8
10
12
14
16
18
20
22
02468 10 12 14 16 18 20 22 24
VDS – Drain Source Voltage(V)
96 12160
VG1S = 0.6 V
0.4 V
0.2 V
0
–0.2 V
–0.4 V
–0.6 V
–0.8 V


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