17.7 GHz to 19.7 GHz, Low Noise Amplifier
ADL5725
Data Sheet
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Frequency range: 17.7 GHz to 19.7 GHz
Typical gain of >25.1 dB
Low noise input
Noise figure: 2.4 dB typical
High linearity input
ADL5725
VCC1
VCC2
OUTN
OUTP
DNC
GND
INPT
50Ω
SINGLE-ENDED
100Ω
DIFFERENTIAL
RBIAS
>−1.5 dBm typical input third-order intercept (IIP3)
−11.5 dBm input 1 dB compression point (P1dB) at 19.7 GHz
Matched 50 Ω single-ended input
Matched 100 Ω differential outputs
8-lead, 2.00 mm × 2.00 mm LFCSP microwave packaging
DNC = DO NOT CONNECT.
DO NOT CONNECT TO THIS PIN.
Figure 1.
APPLICATIONS
Point to point microwave radios
Instrumentation
Satellite communications (SATCOM)
Phased arrays
GENERAL DESCRIPTION
The ADL5725 is a narrow-band, high performance, low noise
amplifier (LNA) targeting microwave radio link receiver designs.
The monolithic silicon germanium (SiGe) design is optimized for
microwave radio link bands ranging from 17.7 GHz to 19.7 GHz.
The unique design offers a single-ended 50 Ω input impedance
and provides a 100 Ω balanced differential output that is ideal for
driving Analog Devices, Inc., differential downconverters and radio
frequency (RF) sampling analog-to-digital converters (ADCs).
This low noise amplifier provides noise figure performance that, in
the past, required more expensive three-five (III-V) compounds
process technology to achieve.
The ADL5721 and ADL5723 to ADL5726 family of narrow-band
LNAs are each packaged in a tiny, thermally enhanced, 2.00 mm ×
2 mm LFCSP package. The ADL5721 and ADL5723 to ADL5726
family operates over the temperature range of −40°C to +85°C.
Rev. 0
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