12.7 GHz to 15.4 GHz, Low Noise Amplifier

The ADL5724 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 12.7 GHz to 15.4 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.

Applications

* Point to point microwave radios

* Instrumentation

* Satellite communications (SATCOM)

* Phased arrays

* Frequency range: 12.7 GHz to 15.4 GHz

* Typical gain of >23.7 dB

* Low noise input

* Noise figure

* 2.1 dB typical at 12.7 GHz

* 2.4 dB typical at 15.4 GHz

* High linearity input

* ≥2.0 dBm typical input third-order intercept (IIP3)

* −8 dBm input 1 dB compression point (P1dB) at 15.4 GHz

* Matched 50 Ω single-ended input

* Matched 100 Ω differential outputs

* 8-lead, 2.00 mm × 2.00 mm LFCSP microwave packaging