US 2025/0105809 A1 · AMPLIFIER WITH PRE-DRIVER HAVING CROSS-COUPLED TRANSISTORS

Abstract

An amplifier includes first through sixth transistors. The first transistor is of a first polarity type and has a control terminal and first and second terminals. The second transistor is of a second polarity type and has a control terminal and first and second terminals. The third transistor is of the first polarity type and has a control terminal and first and second terminals. The second terminal of the third transistor is coupled to the first terminal of the second transistor. The fourth transistor is of the second polarity type and has a control terminal and first and second terminals. The first terminal of the fourth transistor is coupled to the second terminal of the second transistor. The fifth transistor has a control terminal coupled to the control terminal of the third transistor. A sixth transistor has a control terminal coupled to the control terminal of the fourth transistor.

Claims20

Dependent claims

An amplifier, comprising:

a first transistor of a first polarity type and having a control terminal and first and second terminals;
a second transistor of a second polarity type and having a control terminal and first and second terminals;
a third transistor of the first polarity type and having a control terminal and first and second terminals, the second terminal of the third transistor coupled to the first terminal of the second transistor;
a fourth transistor of the second polarity type and having a control terminal and first and second terminals, the first terminal of the fourth transistor coupled to the second terminal of the second transistor;
a fifth transistor having a control terminal coupled to the control terminal of the third transistor;
and
a sixth transistor having a control terminal coupled to the control terminal of the fourth transistor.

4 more elements

An amplifier, comprising:

an input stage circuit having first and second terminals;
a voltage gain circuit having a first terminal coupled to the first terminal of the input stage circuit and having a second terminal coupled to the second terminal of the input stage circuit, the voltage gain circuit having a third terminal;
a first transistor of a first polarity type and having a control terminal coupled to the third terminal and having first and second terminals;
a second transistor of a second polarity type and having a control terminal coupled to the third terminal and having a control terminal and first and second terminals;
a third transistor of the first polarity type and having a control terminal and first and second terminals, the second terminal of the third transistor coupled to the first terminal of the second transistor;
a fourth transistor of the second polarity type and having a control terminal and first and second terminals, the first terminal of the fourth transistor coupled to the second terminal of the second transistor;
a fifth transistor having a control terminal coupled to the control terminal of the third transistor;
and
a sixth transistor having a control terminal coupled to the control terminal of the fourth transistor.

6 more elements

An amplifier, comprising:

base-connected bipolar junction transistors (BJTs) of different polarity types, the base-connected BJTs having a first terminal and a second terminal;
a first transistor of a first polarity type and having a control terminal coupled to the first terminal of the base-connected BJTs, and having first and second terminals;
a second transistor of a second polarity type and having a control terminal coupled to the second terminal of the base-connected BJTs, and having a control terminal and first and second terminals;
a third transistor of the first polarity type and having a control terminal and first and second terminals, the second terminal of the third transistor coupled to the first terminal of the second transistor;
a fourth transistor of the second polarity type and having a control terminal and first and second terminals, the first terminal of the fourth transistor coupled to the second terminal of the second transistor;
a fifth transistor having a control terminal coupled to the control terminal of the third transistor;
and
a sixth transistor having a control terminal coupled to the control terminal of the fourth transistor.

5 more elements

Dependencies are inferred from the claim text.

Amplifier with pre-driver having cross-coupled transistors

Life of this patent

Amplifier with pre-driver having cross-coupled transistors

Life of this patent

Abstract

Claims20