US 12,278,597 B2
Bias techniques for amplifiers with mixed polarity transistor stacks
John Birkbeck, New Milton (GB)
Assigned to PSEMI CORPORATION, San Diego, CA (US)
Filed by pSemi Corporation, San Diego, CA (US)
Filed on May 12, 2023, as Appl. No. 18/316,896.
Application 18/316,896 is a continuation of application No. 17/486,810, filed on Sep. 27, 2021, granted, now 11,689,161.
Application 17/486,810 is a continuation of application No. 16/563,408, filed on Sep. 6, 2019, granted, now 11,133,782, issued on Sep. 28, 2021.
Prior Publication US 2023/0353099 A1, Nov. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H03F 1/22 (2006.01); H03F 3/193 (2006.01); H03F 3/45 (2006.01)
CPC H03F 1/223 (2013.01) [H03F 3/193 (2013.01); H03F 3/45071 (2013.01); H03F 2200/21 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A circuital arrangement comprising:
a stacked transistor amplifier coupled between a supply voltage and a reference ground, the stacked transistor amplifier comprising a N-type transistor stack in series connection with a P-type transistor stack;
a first resistive ladder coupled between the supply voltage and a first current source, respective nodes of the first resistive ladder coupled to gates of a respective input transistor and respective one or more cascode transistors of the P-type transistor stack;
a second resistive ladder coupled between a second current source and the reference ground, respective nodes of the second resistive ladder coupled to gates of a respective input transistor and respective one or more cascode transistors of the N-type transistor stack;
a P-type current mirror coupled to the first resistive ladder; and
an N-type current mirror coupled to the second resistive ladder,
wherein voltages at the respective nodes of the first resistive ladder are based on a difference between a fixed current output by the first current source and an adjustable current output by the P-type current mirror, and
wherein voltages at the respective nodes of the second resistive ladder are based on a difference between a fixed current output by the second current source and an adjustable current output by the N-type current mirror.