21.2 GHz to 23.6 GHz, Low Noise Amplifier

Data Sheet

ADL5726

Rev. A

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FEATURES

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

3.4 dB typical at 23.6 GHz

High linearity input

≥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

APPLICATIONS

Point to point microwave radios

Instrumentation

Satellite communications (SATCOM)

Phased arrays

FUNCTIONAL BLOCK DIAGRAM

50Ω

SINGLE-ENDED

100Ω

DIFFERENTIAL

GND

INPT

RBIAS

VCC1

OUTN

OUTP

DNC

VCC2

ADL5726

DNC = DO NOT CONNECT.

DO NOT CONNECT TO THIS PIN.

Figure 1.

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.