20 MHz to 500 MHz

IF Gain Block

Data Sheet

ADL5531

Rev. C

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FEATURES

Fixed gain of 20 dB

Operation up to 500 MHz

Input/output internally matched to 50 Ω

Integrated bias control circuit

Output IP3

41 dBm at 70 MHz

39 dBm at 190 MHz

Output 1 dB compression: 20.6 dB at 190 MHz

Noise figure: 2.5 dB at 190 MHz

Single 5 V power supply

Small footprint 8-lead LFCSP

ADL5534 20 dB gain dual-channel version

±2 kV ESD (Class 2)

FUNCTIONAL BLOCK DIAGRAM

NC = NO CONNECT

5CLIN

8NC

NC 4

6NC

RFIN 2

7RFOUT

NC 3

ADL5531

BIAS

CONTROL

LINEARIZER

NC 1

Figure 1.

GENERAL DESCRIPTION

The ADL5531 is a broadband, fixed-gain, linear amplifier

that operates at frequencies up to 500 MHz. The device can be

used in a wide variety of equipment, including cellular, satellite,

broadband, and instrumentation equipment.

The ADL5531 provides a gain of 20 dB, which is stable over

frequency, temperature, power supply, and from device to device.

This amplifier is single ended and internally matched to 50 Ω.

Only input/output ac coupling capacitors, power supply decoupling

capacitors, and external inductors are required for operation.

The ADL5531 is fabricated on a GaAs HBT process and has

an ESD rating of ±2 kV (Class 2). The device is packaged in an

8-lead 3 mm × 3 mm LFCSP that uses an exposed paddle for

excellent thermal impedance.

The ADL5531 consumes 100 mA on a single 5 V supply and is

fully specified for operation from −40°C to +85°C.

The dual-channel 20 dB gain version, ADL5534, is also available

from Analog Devices, Inc.