US 9,007,104 B2 · Apparatus for output buffering having half-swing rail-to-rail structure

Abstract

There is provided an apparatus for output buffering having a half-swing rail-to-rail structure. The apparatus provides output buffering by using a switch structure in order to attain a high slew rate and low power characteristics, thereby reducing current consumption. The provided apparatus for output buffering having a half-swing rail-to-rail structure includes a first output buffer, driven between a first voltage rail and a second voltage rail and outputting a first output signal in response to a first input signal and a second input signal, and a second output buffer, driven between the first and the second voltage rails and a third voltage rail and outputting a second output signal in response to a third input signal and a fourth input signal.

Claims24

Dependent claims

An apparatus for output buffering having a half-swing rail-to-rail structure, comprising:

a first output buffer configured to:
be driven between a first voltage rail and a second voltage rail, and
output a first output signal in response to a first input signal and a second input signal;
and
a second output buffer configured to:
be driven between the first and the second voltage rails and a third voltage rail, and
output a second output signal in response to a third input signal and a fourth input signal.

4 more elements

An apparatus for output buffering having a half-swing rail-to-rail structure comprising:

a first output buffer configured to:
be driven between a first voltage rail and a second voltage rail, and
output a first output signal in response to a first input signal and a second input signal;
a first switch configured to provide the first input signal for a first input terminal of the first output buffer;
a second switch configured to provide the second input signal for a second input terminal of the first output buffer;
a second output buffer configured to:
be driven between the first, second voltage rails and the third voltage rail, and
output a second output signal in response to a third input signal and a fourth input signal;
a third switch configured to provide the third input signal for the first input terminal of the second output buffer;
and
a fourth switch configured to provide the fourth input signal for the second input terminal of the second output buffer.

8 more elements

An apparatus for output buffering having a half-swing rail-to-rail structure, comprising:

a first output buffer configured to:
be driven between the first voltage rail, the second voltage rail, and the third voltage rail, and
output a first output signal in response to a first input signal and a second input signal;
a first switch configured to provide the first input signal for the first input terminal of the first output buffer;
a second switch configured to provide the second input signal for the second input terminal of the first output buffer;
a second output buffer configured to:
be driven between the second voltage rail and the third voltage rail, and
output a second output signal in response to the third input signal and the fourth input signal;
a third switch configured to provide the third input signal for the first input terminal of the second output buffer;
and
a fourth switch configured to provide the fourth input signal for the second input terminal of the second output buffer.

8 more elements

Dependencies are inferred from the claim text.

Apparatus for output buffering having half-swing rail-to-rail structure

Life of this patent

Apparatus for output buffering having half-swing rail-to-rail structure

Life of this patent

Abstract

Claims24