3SK317
Silicon N-Channel Dual Gate MOS FET
UHF / VHF RF Amplifier
ADE-208-778 (Z) 1st. Edition Mar. 1999
Features
•Low noise characteristics;
(NF = 1.0 dB typ. at f = 200 MHz)
•High power gain characteristics ; (PG = 27.6 dB typ. at f = 200 MHz)
Outline
CMPAK-4
2
3
1
4 1. Source
2. Gate1
3. Gate2
4. Drain
Note: Marking is “ZR-”.
3SK317
Absolute Maximum Ratings (Ta = 25°C)
Item |
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Ratings |
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Unit |
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Drain to source voltage |
VDS |
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14 |
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V |
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Gate1 to source voltage |
VG1S |
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±8 |
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V |
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Gate2 to source voltage |
VG2S |
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±8 |
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V |
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Drain current |
ID |
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25 |
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mA |
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Channel power dissipation |
Pch |
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100 |
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mW |
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Channel temperature |
Tch |
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150 |
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°C |
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Storage temperature |
Tstg |
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–55 to +150 |
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°C |
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Electrical Characteristics (Ta = 25°C) |
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Item |
Symbol |
Min |
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Typ |
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Max |
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Test Conditions |
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Drain to source breakdown voltage |
V(BR)DSS |
14 |
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— |
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V |
I |
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D = 200 A |
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VG1S = VG2S = -3 V |
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Gate1 to source breakdown |
V(BR)G1SS |
±8 |
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— |
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V |
I |
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G1 = ±10 A |
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voltage |
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VG2S = VDS = 0 |
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Gate2 to source breakdown |
V(BR)G2SS |
±8 |
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— |
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— |
V |
I |
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G2 = ±10 A |
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voltage |
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VG1S = VDS = 0 |
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Gate1 to source cutoff current |
IG1SS |
— |
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— |
±100 |
nA |
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VG1S = ±6 V |
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VG2S = VDS = 0 |
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Gate2 to source cutoff current |
IG2SS |
— |
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— |
±100 |
nA |
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VG2S = ±6 V |
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VG1S = VDS = 0 |
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Gate1 to source cutoff voltage |
VG1S(off) |
0 |
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0.2 |
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1 |
V |
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VDS = 10 V, VG2S = 3 V |
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ID = 100 A |
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Gate2 to source cutoff voltage |
VG2S(off) |
0 |
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0.3 |
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1 |
V |
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VDS = 10 V, VG1S = 3 V |
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ID = 100 A |
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Drain current |
IDS(op) |
4 |
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8 |
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14 |
mA |
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VDS = 6 V, VG1S = 0.75 V |
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VG2S = 3 V |
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Forward transfer admittance |
|yfs| |
20 |
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25 |
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— |
mS |
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V DS = 6 V, VG2S = 3 V |
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ID = 10 mA , f = 1 kHz |
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Input capacitance |
Ciss |
2.4 |
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3.1 |
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3.5 |
pF |
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VDS = 6 V, VG2S = 3 V |
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Output capacitance |
Coss |
0.8 |
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1.1 |
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1.4 |
pF |
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ID = 10 mA , f = 1 MHz |
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Reverse transfer capacitance |
Crss |
— |
0.021 |
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0.04 |
pF |
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Power gain |
PG |
24 |
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27.6 |
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— |
dB |
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V DS = 6 V, VG2S = 3 V |
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Noise figure |
NF |
— |
1.0 |
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1.5 |
dB |
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I D = 10 mA , f = 200 MHz |
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Power gain |
PG |
12 |
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15.6 |
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— |
dB |
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V DS = 6 V, VG2S = 3 V |
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Noise figure |
NF |
— |
3 |
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4 |
dB |
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I D = 10 mA , f = 900 MHz |
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Noise figure |
NF |
— |
2.7 |
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3.5 |
dB |
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V DS = 6 V, VG2S = 3 V |
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ID = 10 mA , f = 60 MHz |
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2
3SK317
Maximum Channel Power
Dissipation Curve
(mW) |
200 |
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Pch |
150 |
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dissipationpower |
100 |
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Channel |
50 |
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0 |
50 |
100 |
150 |
200 |
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Ambient Temperature Ta |
(°C) |
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Drain Current vs. Gate1 to Source Voltage |
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20 |
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3.0 V |
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2.5 V |
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VDS = 6 V |
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Pulse test |
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(mA) |
16 |
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2.0 V |
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1.5 |
V |
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D |
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I |
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currentDrain |
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8 |
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1.0 V |
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4 |
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VG2S = 0.5 V |
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0 |
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5 |
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Gate1 to source voltage |
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VG1S (V) |
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20 |
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Typical Output Characteristics |
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(mA) |
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1.2 V |
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VG2S= 3 V |
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16 |
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Pulse test |
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1.0 V |
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D |
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I |
12 |
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current |
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8 |
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0.8 V |
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Drain |
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4 |
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0.6 V |
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VG1S = 0.4 V |
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0 |
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4 |
6 |
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8 |
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10 |
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Drain to source voltage |
VDS (V) |
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Drain Current vs. Gate2 to Source Voltage |
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20 |
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3.0 V |
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V DS = 6 V |
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2.0 V |
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Pulse test |
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(mA) |
16 |
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2.5 |
V |
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1.5 |
V |
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D |
12 |
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1.0 |
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I |
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currentDrain |
8 |
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4 |
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VG1S = 0.5 V |
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0 |
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1 |
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2 |
3 |
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4 |
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5 |
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Gate2 to source voltage |
VG2S (V) |
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3