Specifications and information are subject to change without notice.

WJ Communications, Inc

• Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com

September 2004

AG103

High Dynamic Range Gain Block

Product Information

The Communications Edge

TM

Product Features

compliant

SOT-89 Package

Applications

Product Description

The AG103 is a general-purpose gain block that offers good

dynamic range and low noise figure in a low-cost surface-

mount package. The combination of high OIP3 and tight

gain variation window makes it attractive for a multitude of

applications. The device combines dependable performance

with superb quality to maintain MTTF values exceeding

1000 years at mounting temperatures of +85

°C and is

available in both the standard SOT-89 package and the

environmentally-friendly lead-free/green/RoHS-compliant

and green SOT-89 package. All devices are 100% RF &

DC tested.

The AG103 uses a high reliability GaAs MMIC technology

and only requires DC-blocking and bypass capacitors, and

an inductive RF choke for operation.

Internal matching

provides a 50 ohm input / output impedance minimizing the

number of required external components.

The AG103 GaAs MMIC amplifier is well suited for

wireless infrastructure such as NMT-450, homeland

security, and 2

the cellular band. In addition, the amplifier can be used for

applications in various IF frequency bands.

Functional Diagram

RF IN

GND

RF OUT

GND

1

23

4

Function

Pin No.

Input

1

Output/Bias

3

Ground

2, 4

Specifications

(1)

Parameter

Units

Min

Typ

Max

Comment

Operational Bandwidth

MHz

50

870

Test Frequency

MHz

800

Gain

dB

12

12.9

14

Input Return Loss

dB

10

See note 2

Output Return Loss

dB

20

Output P1dB

dBm

+20

Output IP3

dBm

+33

>+36

Pout = +5 dBm/tone, 10 MHz spacing.

Noise Figure

dB

2.9

See note 2

Operating Current Range

mA

120

150

180

Supply Voltage

V

+5

1. Test conditions unless otherwise noted: T = 25º C, 50

Ω system.

2. S11 and Noise Figure can be improved using an optional input matching network (typically just a series inductor).

Absolute Maximum Rating

Parameter

Rating

Operating Case Temperature

-40 to +85

°C

Storage Temperature

-55 to +150

°C

DC Voltage

+6 V

RF Input Power (continuous)

+10 dBm

Junction Temperature

+220

° C

Operation of this device above any of these parameters may cause permanent damage.

Ordering Information

Part No.

Description

AG103

GaAs MMIC Gain Block

(leaded SOT-89 Pkg)

AG103-G

GaAs MMIC Gain Block

(lead-free/green/RoHS-compliant SOT-89 Pkg)

AG103-PCB

200 – 600 MHz Fully Assembled Application Circuit