Characteristic

Symbol

Min

Typ

Max

Unit

OFF CHARACTERISTICS

Drain–Source Breakdown Voltage (VGS = 0, ID = 10 mA)

V(BR)DSS

125

—

—

Vdc

Zero Gate Voltage Drain Current (VDS = 50 V, VGS = 0)

IDSS

—

—

1.0

mAdc

Gate–Body Leakage Current (VGS = 20 V, VDS = 0)

IGSS

—

—

100

nAdc

ON CHARACTERISTICS

Gate Threshold Voltage (VDS = 10 V, ID = 10 mA)

VGS(th)

1.0

2.5

5.0

Vdc

Drain–Source On–Voltage (VGS = 10 V, ID = 2.5 A)

VDS(on)

1.0

3.0

5.0

Vdc

Forward Transconductance (VDS = 10 V, ID = 2.5 A)

gfs

0.8

1.2

—

mhos

DYNAMIC CHARACTERISTICS

Input Capacitance (VDS = 50 V, VGS = 0, f = 1.0 MHz)

Ciss

—

62

—

pF

Output Capacitance (VDS = 50 V, VGS = 0, f = 1.0 MHz)

Coss

—

35

—

pF

Reverse Transfer Capacitance (VDS = 50 V, VGS = 0, f = 1.0 MHz)

Crss

—

3.0

—

pF

FUNCTIONAL TESTS (SSB)

Common Source Amplifier Power Gain

(30 MHz)

(VDD = 50 V, Pout = 30 W (PEP), IDQ = 100 mA)

(175 MHz)

Gps

—

—

18

15

—

—

dB

Drain Efficiency

(30 W PEP)

(VDD = 50 V, f = 30 MHz, IDQ = 100 mA)

(30 W CW)

η

—

—

40

50

—

—

%

Intermodulation Distortion

(VDD = 50 V, Pout = 30 W (PEP),

f = 30; 30.001 MHz, IDQ = 100 mA)

IMD(d3)

IMD(d11)

—

—

–35

–60

—

—

dB

Load Mismatch

(VDD = 50 V, Pout = 30 W (PEP), f = 30; 30.001 MHz,

IDQ = 100 mA, VSWR 30:1 at all Phase Angles)

ψ

No Degradation in Output Power

CLASS A PERFORMANCE

Intermodulation Distortion (1) and Power Gain

(VDD = 50 V, Pout = 10 W (PEP), f1 = 30 MHz,

f2 = 30.001 MHz, IDQ = 1.0 A)

GPS

IMD(d3)

IMD(d9 – 13)

—

—

—

20

–50

–70

—

—

—

dB

NOTE:

1. To MIL–STD–1311 Version A, Test Method 2204B, Two Tone, Reference Each Tone.

Figure 1. 2.0 to 50 MHz Broadband Test Circuit

C1, C2, C3, C4, C5, C6 — 0.1

µF Ceramic Chip or Equivalent

C7 — 10

µF, 100 V Electrolytic

C8 — 100 pF Dipped Mica

L1 — VK200 20/4B Ferrite Choke or Equivalent (3.0

µH)

L2 — Ferrite Bead(s), 2.0

µH

R1, R2 — 200

Ω, 1/2 W Carbon

R3 — 4.7

Ω, 1/2 W Carbon

R4 — 470

Ω, 1.0 W Carbon

T1 — 4:1 Impedance Transformer

T2 — 1:2 Impedance Transformer

RF

OUTPUT

RF

INPUT

BIAS

0–10 V

50 V

+

C1

–

+

–

C4

C5

C6

C7

C2

C3

R1

R3

T1

T2

DUT

L1

L2

R4

C8

R2

+

2

Replaces MRF148/D