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U440

P1-P3P4-P6P7-P7
U440/441
Vishay Siliconix
www.vishay.com
8-4
Document Number: 70251
S-04031—Rev. D, 04-Jun-01
TYPICAL CHARACTERISTICS (T
A
= 25_C UNLESS OTHERWISE NOTED)
10
0 –0.4 –1.6 –2
8
2
0
10
0 –1.2 –1.6–0.4 –2
8
4
2
0
6
4
6
–0.8 –1.2
–0.8
30
0 –4 –5–1
24
6
0
18
12
–2 –3
10
–5–4–10
8
2
0
6
4
–2 –3
Transfer Characteristics
V
GS
– Gate-Source Voltage (V)
– Drain Current (mA)
I
D
T
A
= –55_C
V
GS(off)
= –2 V
125_C
Transconductance vs. Gate-Source Voltage
V
GS
– Gate-Source Voltage (V)
T
A
= –55_C
125_C
Transfer Characteristics
T
A
= –55_C
125_C
V
GS
– Gate-Source Voltage (V)
T
A
= –55_C
Transconductance vs. Gate-Source Voltage
– Drain Current (mA)
I
D
V
GS
– Gate-Source Voltage (V)
125_C
1100.1
50
40
20
10
0
30
I
D
– Drain Current (mA)
V
GS(off)
= –2 V
A
V
– Voltage Gain
Circuit Voltage Gain vs. Drain Current
1 10 100
200
160
80
40
0
120
V
GS(off)
= –2 V
T
A
= 25_C
V
GS(off)
= –5 V
On-Resistance vs. Drain Current
I
D
– Drain Current (mA)
R
L
+
10 V
I
D
Assume V
DD
= 15 V, V
DS
= 5 V
A
V
+
g
fs
R
L
1 ) R
L
g
os
V
GS(off)
= –5 V
V
DS
= 10 V V
GS(off)
= –5 V V
DS
= 10 V
V
GS(off)
= –2 V V
DS
= 10 V
f = 1 kHz
V
GS(off)
= –5 V
V
DS
= 10 V
f = 1 kHz
25_C
25_C
25_C
25_C
r
DS(on)
– Drain-Source On-Resistance ( Ω )
g
fs
– Forward Transconductance (mS)
g
fs
– Forward Transconductance (mS)
U440/441
Vishay Siliconix
Document Number: 70251
S-04031—Rev. D, 04-Jun-01
www.vishay.com
8-5
TYPICAL CHARACTERISTICS (T
A
= 25_C UNLESS OTHERWISE NOTED)
10
0 –16 –20–4
8
2
0
5
0 –12 –20–16–4
4
2
1
0
6
4
3
–8 –12 –8
100
10
1
0.1
100 1000
100
10
1
0.1
100 1000
Common-Source Input Capacitance
vs. Gate-Source Voltage
V
DS
= 0 V
f = 1 MHz
V
GS
– Gate-Source Voltage (V)
V
DS
= 10 V
Common-Source Reverse Feedback
Capacitance vs. Gate-Source Voltage
V
DS
= 0 V
f = 1 MHz
V
GS
– Gate-Source Voltage (V)
– Reverse Feedback Capacitance (pF)C
rss
V
DS
= 10 V
(mS)
T
A
= 25_C
V
DS
= 10 V
I
D
= 10 mA
g
ig
b
ig
Input Admittance
f – Frequency (MHz)
g
is
b
is
f – Frequency (MHz)
(mS)
T
A
= 25_C
V
DS
= 10 V
I
D
= 10 mA
b
fg
Forward Admittance
–b
fs
g
fs
– Input Capacitance (pF)C
iss
200 500 200 500
10
1
0.1
0.01
100 1000
100
10
1
0.1
100 1000
(mS)
T
A
= 25_C
V
DS
= 10 V
I
D
= 10 mA
–b
rg
–g
rg
g
rg
Reverse Admittance
f – Frequency (MHz)
–b
rs
–g
rs
(mS)
T
A
= 25_C
V
DS
= 10 V
I
D
= 10 mA
g
og,
g
os
b
og,
b
os
Output Admittance
f – Frequency (MHz)
200 500 200 500
V
DS
= 5 V
V
DS
= 5 V
–g
fg
U440/441
Vishay Siliconix
www.vishay.com
8-6
Document Number: 70251
S-04031—Rev. D, 04-Jun-01
TYPICAL CHARACTERISTICS (T
A
= 25_C UNLESS OTHERWISE NOTED)
10 100 1 k 100 k10 k
50
40
10
0
150
120
90
30
0
0.1 1 10
60
30
20
Equivalent Input Noise Voltage vs. Frequency
I
D
= 1 mA
V
DS
= 10 V
f – Frequency (Hz)
Output Conductance vs. Drain Current
I
D
– Drain Current (mA)
125_C
200
0 –10–8–2
160
40
0
0.1
110
10
8
2
0
200
160
120
40
0
120
80 80
–4 –6
6
4
On-Resistance and Output Conductance
vs. Gate-Source Cutoff Voltage
V
GS(off)
– Gate-Source Cutoff Voltage (V)
r
DS
@ I
D
= 1 mA, V
GS
= 0 V
g
os
@ V
DS
= 10 V, V
GS
= 0 V
f = 1 kHz
r
DS
g
os
Common-Source Forward Transconductance
vs. Drain Current
I
D
– Drain Current (mA)
T
A
= –55_C
125_C
V
GS(off)
= –5 V V
DS
= 10 V
f = 1 kHz
V
GS(off)
= –5 V V
DS
= 10 V
f = 1 kHz
I
D
= 10 mA
T
A
= –55_C
25_C
25_C
en – Noise Voltage nV / Hz
g
os
– Output Conductance (µS)
r
DS(on)
– Drain-Source On-Resistance ( Ω )
g
os
– Output Conductance (µS)
g
fs
– Forward Transconductance (mS)
P1-P3P4-P6P7-P7

U440

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Manufacturer:
Vishay
Description:
JFET Dual Matched
Lifecycle:
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