For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824

Phone: 978-250-3343

Fax: 978-250-3373

Order On-line at www.hittite.com

Application Support: Phone: 978-250-3343 or apps@hittite.com

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GaAs PHEMT MMIC LOW NOISE

AMPLIFIER w/ BYPASS MODE, 700 - 1000 MHz

v03.0610

General Description

Features

Functional Diagram

The HMC373LP3 / HMC373LP3E are versatile, high

dynamic range GaAs MMIC Low Noise Amplifiers

that integrates a low loss LNA bypass mode on the

IC. The amplifier is ideal for GSM & CDMA cellular

basestation front-end receivers operating between

700 and 1000 MHz and provides 0.9 dB noise figure,

14 dB of gain and +35 dBm IP3 from a single supply of

+5V @ 90 mA. Input and output return losses are 28

and 12 dB respectively with the LNA requiring minimal

external components to optimize the RF input match,

RF ground and DC bias. By presenting an open or

short circuit to a single control line, the LNA can be

switched into a low 2.0 dB loss bypass mode reducing

the current consumption to 10 μA. For applications

which require improved noise figure, please see the

HMC668LP3(E).

Noise Figure: 0.9 dB

Output IP3: +35 dBm

Gain: 14 dB

Low Loss LNA Bypass Path

Single Supply: +5V @ 90 mA

50 Ohm Matched Output

Typical Applications

The HMC373LP3 / HMC373LP3E is ideal for

basestation receivers:

• GSM, GPRS & EDGE

• CDMA & W-CDMA

• Private Land Mobile Radio

Parameter

LNA Mode

LNA Mode

Bypass Mode

Units

Min.

Typ.

Max.

Min.

Typ.

Max.

Min.

Typ.

Max.

Frequency Range

810 - 960

700 - 1000

700 - 1000

MHz

Gain

11.5

13.5

10.5

14

-2.8

-2.0

dB

Gain Variation Over Temperature

0.008

0.015

0.008

0.015

0.002

0.004

dB / °C

Noise Figure

0.9

1.3

1.0

1.4

dB

Input Return Loss

28

25

30

dB

Output Return Loss

12

11

25

dB

Reverse Isolation

20

19

dB

Power for 1dB Compression (P1dB)*

18

21

17

20

30

dBm

Saturated Output Power (Psat)

22.5

22

dBm

Third Order Intercept (IP3)*

(-20 dBm Input Power per tone, 1 MHz tone spacing)

35.5

35

50

dBm

Supply Current (Idd)

90

90

0.01

mA

* P1dB and IP3 for LNA Mode are referenced to RFOUT while P1dB and IP3 for Bypass Mode are referenced to RFIN.