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20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373

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HMC498LC4

GaAs PHEMT MEDIUM

POWER AMPLIFIER, 17 - 24 GHz

v02.1208

General Description

Features

Functional Diagram

The HMC498LC4 is a high dynamic range GaAs

PHEMT MMIC Medium Power Amplifier housed in a

leadless “Pb free” SMT package. Operating from 17

to 24 GHz, the amplifier provides 22 dB of gain, +26

dBm of saturated power and 23% PAE from a +5V

supply voltage. Noise figure is 4 dB while output IP3 is

+36 dBm typical enabling the HMC498LC4 to function

as a low noise front end as well as a driver amplifier.

The RF I/Os are DC blocked and matched to 50 Ohms

for ease of use. The HMC498LC4 eliminates the

need for wire bonding, allowing use of surface mount

manufacturing techniques.

Output IP3: +36 dBm

Saturated Power: +26 dBm @ 23% PAE

Gain: 22 dB

+5V @ 250 mA Supply

50 Ohm Matched Input/Output

RoHS Compliant 4x4 mm SMT Package

Typical Applications

The HMC498LC4 is ideal for use as a LNA or Driver

amplifier for:

• Point-to-Point Radios

• Point-to-Multi-Point Radios & VSAT

• Test Equipment & Sensors

• Military End-Use

Parameter

Min.

Typ.

Max.

Min.

Typ.

Max.

Min.

Typ.

Max.

Units

Frequency Range

17 - 19

19 - 23

23 - 24

GHz

Gain

18

22

20

22.5

18

21

dB

Gain Variation Over Temperature

0.02

0.03

0.02

0.03

0.02

0.03

dB/ °C

Input Return Loss

13

13

10

dB

Output Return Loss

15

15

20

dB

Output Power for 1 dB Compression (P1dB)

22

25

21.5

24.5

22.5

25.5

dBm

Saturated Output Power (Psat)

26.5

25.5

26.5

dBm

Output Third Order Intercept (IP3)

35

36

35.5

dBm

Noise Figure

4.0

4.0

4.5

dB

Supply Current (Idd)(Vdd = +5V, Vgg = -0.8V

Typ.)

250

250

250

mA

* Adjust Vgg between -2 to 0V to achieve Idd = 250 mA typical.