Body tie optimization for stacked transistor amplifier
First Claim
Patent Images
1. A circuital arrangement comprising:
- a transistor stack configured to operate as a radio frequency (RF) amplifier, the transistor stack comprising a plurality of stacked transistors comprising an input transistor for receiving an input RF signal to the amplifier, and an output transistor for outputting an output RF signal that is an amplified version of the input RF signal;
the transistor stack configured to operate between a supply voltage coupled to the output transistor and a reference voltage coupled to the input transistor,wherein at least one transistor of the plurality of stacked transistors is a four-terminal transistor, and remaining transistors of the plurality of stacked transistors are three-terminal transistors, andwherein the at least one transistor comprises the input transistor.
1 Assignment
0 Petitions
Accused Products
Abstract
A transistor stack can include a combination of floating and body tied devices. Improved performance of the RF amplifier can be obtained by using a single body tied device as the input transistor of the stack, or as the output transistor of the stack, while other transistors of the stack are floating transistors. Transient response of the RF amplifier can be improved by using all body tied devices in the stack.
43 Citations
14 Claims
-
1. A circuital arrangement comprising:
-
a transistor stack configured to operate as a radio frequency (RF) amplifier, the transistor stack comprising a plurality of stacked transistors comprising an input transistor for receiving an input RF signal to the amplifier, and an output transistor for outputting an output RF signal that is an amplified version of the input RF signal;
the transistor stack configured to operate between a supply voltage coupled to the output transistor and a reference voltage coupled to the input transistor,wherein at least one transistor of the plurality of stacked transistors is a four-terminal transistor, and remaining transistors of the plurality of stacked transistors are three-terminal transistors, and wherein the at least one transistor comprises the input transistor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
Specification