20 MHz to 500 MHz
IF Gain Block
ADL5531
Data Sheet
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Fixed gain of 20 dB
ADL5531
8 NC
NC 1
Operation up to 500 MHz
Input/output internally matched to 50 Ω
Integrated bias control circuit
Output IP3
RFIN 2
7 RFOUT
6 NC
BIAS
NC 3
NC 4
CONTROL
5 CLIN
LINEARIZER
41 dBm at 70 MHz
39 dBm at 190 MHz
NC = NO CONNECT
Output 1 dB compression: 20.6 dB at 190 MHz
Noise figure: 2.5 dB at 190 MHz
Single 5 V power supply
Figure 1.
Small footprint 8-lead LFCSP
ADL5534 20 dB gain dual-channel version
2 kV ESD (Class 2)
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 is fabricated on a GaAs HBT process and has
an ESD rating of 2 ꢀk ꢁ(lass 2). The device is pacꢀaged in an
8-lead 3 mm × 3 mm LF(SP that uses an exposed paddle for
excellent thermal impedance.
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 consumes 100 mA on a single 5 k supply and is
fully specified for operation from −40°( to +85°(.
The dual-channel 20 dB gain version, ADL5534, is also available
from Analog Devices, Inc.
Rev. C
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