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AA028P1-00

27–29 GHz GaAs MMIC Power Amplifier

Skyworks Solutions 

27–29 GHz GaAs MMIC

Power Amplifier

Features

■ Single Bias Supply Operation (6 V)

■ 22 dBm Typical P1 dB Output Power

at 28 GHz

■ 13.5 dB Typical Small Signal Gain

■ 0.25 µm Ti/Pd/Au Gates

■ 100% On-Wafer RF and DC Testing

■ 100% Visual Inspection to MIL-STD-883

MT 2010

Description

Skyworks’ two-stage balanced Ka band GaAs MMIC

power amplifier has a typical P1 dB of 22 dBm with

12.5 dB associated gain and 10% power added efficiency

at 28 GHz. The chip uses Skyworks’ proven 0.25 µm

MESFET technology, and is based upon MBE layers and

electron beam lithography for the highest uniformity and

repeatability. The FETs employ surface passivation to

ensure a rugged, reliable part with through-substrate via

holes and gold-based backside metallization to facilitate

a conductive epoxy die attach process. All chips are

screened for S-parameters and power characteristics prior

to shipment for guaranteed performance. A broad range

of applications exist in both the commercial and high

reliability areas where high power and gain are required.

Chip Outline

1.700

1.613

1.371

0.086

0.000

AA028P1-00

0.329

Dimensions indicated in mm.

All DC (V) pads are 0.1 x 0.1 mm and RF In, Out pads are 0.07 mm wide.

Chip thickness = 0.1 mm.

Absolute Maximum Ratings

Characteristic

Operating Temperature (TC)

Storage Temperature (TST)

Bias Voltage (VD)

Power In (PIN)

Junction Temperature (TJ)

Value

-55°C to +90°C

-65°C to +150°C

7 VDC

22 dBm

175°C

Electrical Specifications at 25°C (VDS = 6 V)

Parameter

Condition

Drain Current (at Saturation)

Small Signal Gain

F = 27–29 GHz

Input Return Loss

F = 27–29 GHz

Output Return Loss

F = 27–29 GHz

Output Power at 1 dB Gain Compression

F = 28 GHz

Saturated Output Power

Two-Tone Output Third-Order Intercept1

F = 28 GHz

F = 28 GHz

Gain at Saturation

Thermal Resistance2

F = 28 GHz

1. Not measured on a 100% basis.

2. Calculated value based on measurement of discrete FET.

3. Typical represents the median parameter value across the specified

frequency range for the median chip.

Symbol

IDS

G

RLI

RLO

P1 dB

PSAT

OIP3

GSAT

ΘJC

Min.

11

21

22

Typ.3

300

13.5

-13

-16

22

23

31

11

51

Max.

400

-10

-10

Unit

mA

dB

dB

dB

dBm

dBm

dBm

dB

°C/W

Skyworks Solutions, Inc. [781] 376-3000 • Fax [781] 376-3100 • Email sales@skyworksinc.com • www.skyworksinc.com

1

Specifications subject to change without notice. 011/02A

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