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CA74

Cascadable Amplifier 5 to 500 MHz

M/A-COM Technology Solutions, Inc. 

A74 / SMA74

Cascadable Amplifier

5 to 500 MHz

Rev. V4

Features

• HIGH GAIN - TWO STAGES: 30.0 dB (TYP.)

• MEDIUM OUTPUT LEVEL: +8.5 dBm (TYP.)

• WIDE POWER SUPPLY RANGE: +8 TO +15 VOLTS

• LOW VSWR: <1.3:1 (TYP.)

Description

The A74 RF amplifier is a discrete hybrid design, which uses

thin film manufacturing processes for consistent performance

and high reliability.

This 2 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

Ordering Information

Product Image

Part Number

A74

SMA74

Package

TO-8

Surface Mount

CA74**

SMA Connectorized

** The connectorized version is not RoHs compliant.

Electrical Specifications: Z0 = 50Ω, VCC = +15 VDC

Absolute Maximum Ratings

Parameter

Frequency

Small Signal Gain (min)

Gain Flatness (max)

Reverse Isolation

Noise Figure (max)

Power Output

@ 1 dB comp. (min)

IP3

IP2

Units

MHz

dB

dB

dB

dB

dBm

dBm

dBm

Typical

25ºC

1-600

30.0

±0.3

40

3.0

8.5

+20

+33

Guaranteed

0º to 50ºC -54º to +85ºC*

5-500

5-500

28.0

27.0

±0.7

±1.0

4.0

4.5

7.5

7.0

Parameter

Absolute

Maximum

Storage Temperature -62ºC to +125ºC

Case Temperature

125ºC

DC Voltage

+17 V

Continuous Input Power

+6 dBm

Short Term Input power

(1 minute max.)

50 mW

Peak Power (3 µsec max.)

0.5 W

“S” Series Burn-In

Temperature (case)

125ºC

Thermal Data: VCC = +15 VDC

Parameter

Rating

Second Order Harmonic IP dBm

+36

VSWR Input / Output (max)

1.3:1 / 1.3:1 1.8:1 / 1.8:1

DC Current @ 15 Volts (max) mA

40

42

2.0:1 / 2.0:1

44

Thermal Resistance θjc

Transistor Power Dissipation Pd

Junction Temperature Rise

Above Case Tjc

171ºC/W

0.200 W

34ºC

* Over temperature performance limits for part number CA74, guaranteed from 0oC to +50oC only.

1

ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400

is considering for development. Performance is based on target specifications, simulated results,

and/or prototype measurements. Commitment to develop is not guaranteed.

PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology

• India Tel: +91.80.4155721

• China Tel: +86.21.2407.1588

Visit www.macomtech.com for additional data sheets and product information.

Solutions has under development. Performance is based on engineering tests. Specifications are

typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make

Commitment to produce in volume is not guaranteed.

changes to the product(s) or information contained herein without notice.

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