BF994S

Vishay Telefunken

www.vishay.de

• FaxBack +1-408-970-5600

Rev. 3, 20-Jan-99

4 (7)

Document Number 85008

0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

0

2

4

6

8

1012 141618 20

12856

f=1MHz

Figure 7. Output Capacitance vs. Drain Source Voltage

–60

–50

–40

–30

–20

–10

0

10

–2.0 –1.5 –1.0 –0.5 0.0

0.5

1.0

1.5

2.0

12855

4V

0

2V

1V

3V

f= 200MHz

–0.2V

–0.8V

–0.6V

–0.4V

Figure 8. Transducer Gain vs. Gate 1 Source Voltage

0

2

4

6

8

10

12

14

16

18

20

02468

10

12

14

16

18

12850

f=1MHz

4V

2V

3V

1V

0.5V

Figure 9. Forward Transadmittance vs. Drain Current

0

2

4

6

8

10

12

0

0.5

1.0

1.5

2.0

2.5

3.0

12860

f=50...700MHz

f=700MHz

600MHz

500MHz

400MHz

300MHz

200MHz

50MHz

Figure 10. Short Circuit Input Admittance

–20

–16

–12

–8

–4

0

0

2

4

6

8

1012 1416 1820 22

12861

f=50...700MHz

f=50MHz

500MHz

300MHz

150MHz

700MHz

10mA

20mA

Figure 11. Short Circuit Forward Transfer Admittance

0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

0

0.4

0.8

1.2

1.6

2.0

12862

f=50...700MHz

f=700MHz

600MHz

500MHz

400MHz

300MHz

200MHz

50MHz

Figure 12. Short Circuit Output Admittance