The ADL8112 from Analog Devices is a Low Noise Amplifier that operates from 10 MHz to 26.5 GHz. It provides a small signal gain of 14.5 dB with a noise figure of 4 dB and has an output P1dB of more than 8.5 dBm. This amplifier has been designed to provide a gain that is stable over frequency, temperature, power supply, and across multiple devices. It is a single device that consists of an amplifier and two single-pole, four-throw (SP4T) reflective switches that allow multiple paths through this device. The integrated switch has a rise/fall time of 4 ns and a settling time of 50 ns. This integrated amplifier uses reflective switches to provide a high-output third-order intercept (IIP3) path when large input signals are present.
The ADL8112 requires a positive DC supply of 3.3 V, and a negative DC supply of -3.3 V, and consumes 90 mA of current. It embeds power supply decoupling capacitors, which minimizes the external decoupling of the power supply. This LNA is available in a surface-mount LGA package that measures 6 x 6 mm and is ideal for electronic test and measurement equipment, electronic warfare, and wireless receiver applications.
