BF998A Vishay Telefunken, BF998A Datasheet - Page 3

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

Electrical AC Characteristics
V
Forward transadmittance
Gate 1 input capacitance
Gate 2 input capacitance
Feedback capacitance
Output capacitance
Power gain
AGC range
Noise figure
Document Number 85011
Rev. 4, 23-Jun-99
DS
= 8 V, I
g
g
Parameter
D
= 10 mA, V
G2S
V
G
G
V
G
G
= 4 V, f = 1 MHz , T
G1S
G2S
S
S
S
S
= 2 mS, G
= 3,3 mS, G
= 2 mS, G
= 3,3 mS, G
= 0, V
= 4 to –2 V, f = 800 MHz
G2S
Test Conditions
L
L
= 0.5 mS, f = 200 MHz
= 0.5 mS, f = 200 MHz
L
L
= 4 V
= 1 mS, f = 800 MHz
= 1 mS, f = 800 MHz
amb
= 25 _ C, unless otherwise specified
BF998/BF998R/BF998RW
Symbol
C
C
www.vishay.de FaxBack [phone]
D
C
y
C
G
G
issg1
issg2
G
21s
F
F
oss
rss
ps
ps
ps
Vishay Telefunken
16.5
Min
21
40
1.05
Typ
2.1
1.1
1.0
1.5
24
25
28
20
Max Unit
2.5
mS
3 (9)
dB
dB
dB
dB
dB
pF
pF
pF
fF