參數(shù)資料
型號(hào): BF989
廠商: NXP SEMICONDUCTORS
元件分類: 小信號(hào)晶體管
英文描述: N-channel dual-gate MOS-FET
中文描述: UHF BAND, Si, N-CHANNEL, RF SMALL SIGNAL, MOSFET
封裝: PLASTIC, SOT-143, 4 PIN
文件頁(yè)數(shù): 4/8頁(yè)
文件大?。?/td> 66K
代理商: BF989
April 1991
4
Philips Semiconductors
Product specification
N-channel dual-gate MOS-FET
BF989
STATIC CHARACTERISTICS
T
j
= 25
°
C unless otherwise specified.
DYNAMIC CHARACTERISTICS
Measuring conditions (common source): I
D
= 7 mA; V
DS
= 10 V; V
G2-S
= 4 V; T
amb
= 25
°
C.
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
±
50
±
50
20
±
20
±
20
2.7
2.7
UNIT
I
G1-SS
I
G2-SS
I
DSS
V
(BR)G1-SS
gate 1-source breakdown voltage
V
(BR)G2-SS
gate 2-source breakdown voltage
V
(P)G1-S
gate 1-source cut-off voltage
V
(P)G2-S
gate 2-source cut-off voltage
gate 1 cut-off current
gate 2 cut-off current
drain-source cut-off voltage
V
G1-S
=
±
5 V; V
G2-S
= V
DS
= 0
V
G2-S
=
±
5 V; V
G1-S
= V
DS
= 0
V
DS
= 10 V; V
G1-S
= 0; V
G2-S
= 4 V
I
G1-SS
=
±
10 mA; V
G2-S
= V
DS
= 0
I
G2-SS
=
±
10 mA; V
G1-S
= V
DS
= 0
I
D
= 20
μ
A; V
DS
= 10 V; V
G2-S
= 4 V
I
D
= 20
μ
A; V
DS
= 10 V; V
G1-S
= 0
2
±
6
±
6
nA
nA
mA
V
V
V
V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
UNIT
transfer admittance
input capacitance at gate 1
input capacitance at gate 2
feedback capacitance
output capacitance
noise figure
f = 1 kHz
f = 1 MHz
f = 1 MHz
f = 1 MHz
f = 1 MHz
f = 200 MHz; G
S
= 2 mS; B
S
= B
Sopt
f = 800 MHz; G
S
= 2 mS; B
S
= B
Sopt
9.5
12
1.8
1
25
0.9
1.6
2.8
mS
pF
pF
fF
pF
dB
dB
C
ig1-s
C
ig2-s
C
rs
C
os
F
Y
fs
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