21.2 GHz to 23.6 GHz, Low Noise Amplifier
ADL5726
Data Sheet
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Frequency range: 21.2 GHz to 23.6 GHz
Typical gain of >22.5 dB
Low noise input
Noise figure
3.3 dB typical at 21.2 GHz
ADL5726
VCC1
GND
VCC2
OUTN
OUTP
DNC
50Ω
SINGLE-ENDED
100Ω
DIFFERENTIAL
INPT
RBIAS
3.4 dB typical at 23.6 GHz
High linearity input
DNC = DO NOT CONNECT.
DO NOT CONNECT TO THIS PIN.
≥1.0 dBm typical input third-order intercept (IIP3)
−8 dBm input 1 dB compression point (P1dB) at 23.6 GHz
Matched 50 Ω single-ended input
Matched 100 Ω differential outputs
8-lead, 2.00 mm × 2.00 mm LFCSP microwave packaging
Figure 1.
APPLICATIONS
Point to point microwave radios
Instrumentation
Satellite communications (SATCOM)
Phased arrays
GENERAL DESCRIPTION
The ADL5726 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 21.2 GHz
to 23.6 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 LNA 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 × 2.00 mm LFCSP package. The ADL5721 and
ADL5723 to ADL5726 family operates over the temperature
range of −40°C to +85°C.
Rev. A
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