For price, delivery, and to place orders, please contact Hittite Microwave Corporation:

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

Order On-line at www.hittite.com

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HMC770LP4BE

v00.0909

GaAs pHEMT 50 / 75 Ohm

DIFFERENTIAL AMPLIFIER, 0.04 - 1 GHz

50 Ohm Data

Noise Figure vs. Rbias

Noise Figure vs. Rbias for Low

0

2

4

6

8

0

0.2

0.4

0.6

0.8

1

Rbias = 1.5k Ohms

Rbias = 600 Ohms

Rbias = 200 Ohms

FREQUENCY (GHz)

0

2

4

6

8

0

25

50

75

100

125

150

175

200

Rbias=1.5k Ohms

Rbias=600 Ohms

Rbias=200 Ohms

FREQUENCY (MHz)

0

5

10

15

20

25

30

0

0.2

0.4

0.6

0.8

1

+25C

+85C

-40C

FREQUENCY (GHz)

[1] Rbias=R1=200 Ohms. See application circuit.

[2] See application circuit for the tune for low frequencies.

0

5

10

15

20

25

30

0

0.2

0.4

0.6

0.8

1

4.5V

5.0V

5.5V

FREQUENCY (GHz)

0

5

10

15

20

25

30

0

0.2

0.4

0.6

0.8

1

Rbias = 1.5k Ohms

Rbias = 600 Ohms

Rbias = 200 Ohms

FREQUENCY (GHz)