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US 6,806,778 B1Granted
Darlington cascode
AssigneeSirenza Microdevices, Inc.
InventorKevin W. Kobayashi
Life of this patent
Estimating the term…
Abstract
An apparatus comprising a Darlington transistor pair and a common-base transistor. The Darlington transistor pair may be configured to generate an output signal at an output node in response to an input signal received through an input node. The common-base transistor may be coupled between an output transistor of the Darlington transistor pair and the output node. The common-base transistor may have a base configured to receive a reference voltage.
Claims29
An apparatus comprising:
- a Darlington transistor pair configured to generate an output signal at an output node in response to an input signal received through an input node;
- and
- a common-base transistor (i) coupled between a first collector of an output transistor of said Darlington transistor pair and a second collector of an input transistor of said Darlington transistor pair and (ii) having a base configured to receive a reference voltage.
An apparatus comprising:
- means for generating an output signal at an output node in response to an input signal comprising a Darlington transistor pair;
- and
- means for coupling a common-base transistor between two collectors in said Darlington transistor pair, wherein said common-base transistor has a base configured to receive a reference voltage.
A method for generating an output signal having a dynamic range, comprising the steps of:
- (A) generating said output signal at an output node in response to an input signal at an input node using a Darlington transistor pair;
- and
- (B) biasing a common-base transistor coupled between two collectors in said Darlington transistor pair with a reference voltage.
An apparatus comprising:
- a first transistor having (i) a first collector connected to an output node, (ii) a first base configured to receive to an input signal through an input node and (iii) a first emitter;
- a second transistor having (i) a second base connected to said first emitter and (ii) a second collector;
- and
- a third transistor in a common-base arrangement (i) coupled between said second collector and said output node and (ii) having a third base configured to receive a reference voltage.
1 more element
Dependencies are inferred from the claim text.