1

Cascadable Amplifier

50 to 500 MHz

Rev. V4

AL7 / SMAL7

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Features

 SYMMETRICAL CLIPPING:

GOOD EVEN-ORDER SUPPRESSION

 HIGH GAIN: 13 dB (TYP.)

 LOW VSWR: < 1.5:1 (TYP.)

 FAST PULSE RECOVERY TIME: < 50 NSEC (TYP.)

Description

The AL7 limiting amplifier is a discrete hybrid design, which

uses thin film manufacturing processes for accurate

performance and high reliability.

This design uses a Schottky diode limiter circuit at the output,

and a single stage bipolar transistor feedback amplifier at the

output. An RF choke is used for DC power supply decoupling

.

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

AL7

TO-8

SMAL7

Surface Mount

CAL7 **

SMA Connectorized

Absolute Maximum Ratings

Parameter

Absolute

Maximum

Storage Temperature

-62ºC to +125ºC

Case Temperature

+125ºC

DC Voltage

+17 V

Continuous Input Power

+13 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

Parameter

Rating

45ºC/W

0.560 W

Junction Temperature Rise

25.2ºC

Parameter

Units

Typical

Guaranteed

25ºC

0º to 50ºC -54º to +85ºC*

Frequency

MHz

20-550

50-500

50-500

Small Signal Gain (min)

dB

13.0

12.0

11.0

Gain Flatness (max)

dB

±0.2

±0.5

±0.7

Noise Figure (max)

50-300 MHz

300-500 MHz

dB

dB

5.0

5.5

6.0

6.5

6.5

7.0

Power Output @ 1 dB comp. (min)

dBm

-1.5

-5.0

-7.0

Output Limiting Level (max)

Pin = +10 dBm

dBm

+0.5

+1.5

+2.5

VSWR Input / Output (max)

1.1:1/<1.5:1 1.7:1/ 2.0:1

1.8:1 / 2.1:1

DC Current @ 15 Volts (max)

mA

54

60

62

** The connectorized version is not RoHs compliant.