US 12,483,206 B2
Broadband low noise amplifiers with integrated limiters and fast recovery time
Mohammed Ehteshamuddin, Woburn, MA (US); Song Lin, Lexington, MA (US); and Christopher Hay, Colorado Springs, CO (US)
Assigned to Analog Devices, Inc., Wilmington, MA (US)
Filed by Analog Devices, Inc., Wilmington, MA (US)
Filed on Mar. 9, 2023, as Appl. No. 18/181,321.
Prior Publication US 2024/0305252 A1, Sep. 12, 2024
Int. Cl. H03F 1/34 (2006.01); H03F 1/26 (2006.01); H03F 1/56 (2006.01); H03F 3/193 (2006.01); H03F 3/195 (2006.01)
CPC H03F 3/193 (2013.01) [H03F 1/26 (2013.01); H03F 1/565 (2013.01); H03F 3/195 (2013.01); H03F 2200/294 (2013.01); H03F 2200/451 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A radio frequency (RF) amplifier comprising:
an RF input terminal configured to receive an RF input signal;
an RF amplification circuit including an input and an output;
a feedback resistor electrically connected between the output and the input of the RF amplification circuit;
an input limiting circuit electrically connected between the RF input terminal and the input to the RF amplification circuit; and
an input bias circuit configured to provide an input bias voltage to the input of the RF amplification circuit through the input limiting circuit, the input bias circuit including a current mirror.