BF998A Vishay Telefunken, BF998A Datasheet - Page 4

• Manufacturer Part Number: BF998A
• Description: N-Channel Dual Gate MOS-Fieldeffect Tetrode/ Depletion Mode
• Manufacturer: Vishay Telefunken

Typical Characteristics (T
BF998/BF998R/BF998RW
Vishay Telefunken
www.vishay.de FaxBack [phone]
4 (9)
96 12159
12812
12816
Figure 3. Drain Current vs. Gate 1 Source Voltage
Figure 2. Drain Current vs. Drain Source Voltage
300
250
200
150
100
50
30
25
20
15
10
20
16
12
0
5
0
–0.8
8
4
0
Figure 1. Total Power Dissipation vs.
0
0
V
V
G2S
20
DS
T
V
–0.4
V
= 4V
amb
= 8V
Ambient Temperature
2
G1S
DS
40
– Ambient Temperature ( C )
– Drain Source Voltage ( V )
– Gate 1 Source Voltage ( V )
4V
60
0.0
5V
4
6V
80
0.4
100 120 140 160
6
V
V
G1S
G2S
0.8
3V
8
2V
= 0.6V
=–1V
amb
–0.2V
–0.4V
0.4V
0.2V
1V
0
0
1.2
10
= 25 _ C unless otherwise specified)
Figure 6. Output Capacitance vs. Drain Source Voltage
12817
12863
12864
Figure 4. Drain Current vs. Gate 2 Source Voltage
3.0
2.5
2.0
1.5
1.0
0.5
3.0
2.5
2.0
1.5
1.0
0.5
20
16
12
0
Figure 5. Gate 1 Input Capacitance vs.
–0.6
8
4
0
0
–2
2
–1.5 –1.0 –0.5
V
DS
V
V
V
–0.2
V
f=1MHz
Gate 1 Source Voltage
V
G2S
G2S
G1S
4
DS
= 8V
DS
=8V
=4V
– Drain Source Voltage ( V )
– Gate 2 Source Voltage ( V )
– Gate 1 Source Voltage ( V )
0.2
6
0.0
0.6
5V
8
Document Number 85011
V
0.5
f=1MHz
G2S
V
4V
G1S
1.0
10
=4V
Rev. 4, 23-Jun-99
1.0
= –1V
3V
1V
2V
0
1.4
1.5
12