Cascadable Amplifier

10 to 250 MHz

Rev. V4

A181 / SMA181

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Parameter

Units

Typical

Guaranteed

25ºC

0º to 50ºC -54º to +85ºC*

Frequency

MHz

5-400

10-250

10-250

Small Signal Gain (min)

dB

16.5

15.5

14.5

Gain Flatness (max)

dB

±0.3

±0.7

±0.8

Reverse Isolation

dB

22

Noise Figure (max)

dB

3.8

4.5

5.0

Power Output

@ 1 dB comp. (min)

dBm

22.0

20.0

19.5

IP3

dBm

+35

IP2

dBm

+48

Second Order Harmonic IP

dBm

+54

VSWR Input / Output (max)

1.4:1 / 1.4:1

1.9:1 / 1.9:1

2.1:1 / 2.1:1

DC Current @ 15 Volts (max)

mA

95

104

113

Features

 HIGH REVERSE ISOLATION: 22 dB (TYP.)

 HIGH OUTPUT POWER: +22 dBm (TYP.

 HIGH THIRD ORDER I.P.: +35 dBm (TYP.)

Description

The A181 RF amplifier is a discrete hybrid design, which uses

thin film manufacturing processes for accurate performance and

high reliability.

This single stage bipolar transistor feedback amplifier design

displays impressive performance over a broadband frequency

range. An active DC biasing network insures

temperature-stable performance.

Both TO-8 and Surface Mount packages are hermetically

sealed, and MIL-STD-883 environmental screening is available

.

Product Image

Ordering Information

Part Number

Package

A181

TO-8

SMA181

Surface Mount

CA181 **

SMA Connectorized

Absolute Maximum Ratings

Parameter

Absolute

Maximum

Storage Temperature

-62ºC to +125ºC

Case Temperature

85ºC

DC Voltage

+17 V

Continuous Input Power

+15 dBm

Short Term Input power

(1 minute max.)

100 mW

Peak Power (3 µsec max.)

0.5 W

“S” Series Burn-In

Temperature (case)

85ºC

Parameter

Rating

148ºC/W

0.622 W

Junction Temperature Rise

92ºC

** The connectorized version is not RoHs compliant.