J308 Datasheet, PDF (5/7 Pages) ON Semiconductor – JFET VHF/UHF Amplifiers

J/SST/U308 Series
Vishay Siliconix
TYPICAL CHARACTERISTICS (T_A = 25_C UNLESS OTHERWISE NOTED)
Output Characteristics
20
V_GS(off) = –1.5 V
V_GS = 0 V
16
–0.2 V
Output Characteristics
50
V_GS(off) = –3 V
V_GS = 0 V
40
–0.4 V
12
30
–0.4 V
–0.8 V
8
4
0
0
–0.6 V
–0.8 V
–1.0 V
2
4
6
8
10
V_DS – Drain-Source Voltage (V)
20
10
0
0
–1.2 V
–1.6 V
–2.0 V
–2.4 V
2
4
6
8
10
V_DS – Drain-Source Voltage (V)
Transfer Characteristics
30
V_GS(off) = –1.5 V
V_DS = 10 V
24
Transfer Characteristics
100
V_GS(off) = –3 V
V_DS = 10 V
80
18
T_A = –55_C
25_C
12
60
T_A = –55_C
25_C
40
6
125_C
20 ^125_C
0
0
–0.4
–0.8
–1.2
–1.6
–2
V_GS – Gate-Source Voltage (V)
Transconductance vs. Gate-Source Voltage
30
V_GS(off) = –1.5 V
V_DS = 10 V
f = 1 kHz
24
T_A = –55_C
25_C
18
125_C
12
6
0
0
–0.6
–1.2
–1.8
–2.4
–3
V_GS – Gate-Source Voltage (V)
Transconductance vs. Gate-Source Voltage
50
V_GS(off) = –3 V
V_DS = 10 V
f = 1 kHz
40
T_A = –55_C
30
25_C
20
125_C
10
0
0
–0.4
–0.8
–1.2
–1.6
–2
V_GS – Gate-Source Voltage (V)
Document Number: 70237
S-04028—Rev. G, 04-Jun-01
0
0
–0.6
–1.2
–1.8
–2.4
–3
V_GS – Gate-Source Voltage (V)
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