Apparatus and Method for Programmable Power Management in a Programmable Analog Circuit Block

a programmable analog circuit and power management technology, applied in the field of power management, can solve the problems of reducing the amount of current within, the amount of power consumed by the operational amplifier, and the speed of the operational amplifier, so as to achieve the effect of increasing the speed of the programmable analog circuit without sacrificing performan

Inactive Publication Date: 2012-07-19
CYPRESS SEMICON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Enables programmable power management in programmable analog circuits, allowing for increased speeds and reduced power consumption at lower bias voltages without compromising performance, thereby addressing the tradeoff between speed and dynamic range.

Problems solved by technology

Selective addition or removal of current mirrors increases or decreases the amount of current within the operational amplifier and, correspondingly, the amount of power consumed for the operational amplifier and the speed of the operational amplifier.

Method used

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  • Apparatus and Method for Programmable Power Management in a Programmable Analog Circuit Block
  • Apparatus and Method for Programmable Power Management in a Programmable Analog Circuit Block
  • Apparatus and Method for Programmable Power Management in a Programmable Analog Circuit Block

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Embodiment Construction

[0030]Reference will now be made in detail to the preferred embodiments of the present invention, a method and system for programmable power management in a programmable analog circuit block, examples of which are illustrated in the accompanying drawings. While the invention will be described in conjunction with the preferred embodiments, it will be understood that they are not intended to limit the invention to these embodiments. On the contrary, the invention is intended to cover alternatives, modifications and equivalents, which may be included within the spirit and scope of the invention as defined by the appended claims.

[0031]Furthermore, in the following detailed description of the present invention, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be recognized by one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well kn...

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Abstract

An apparatus and method for programmable power management in a programmable analog circuit block. Specifically, the present invention describes an operational amplifier circuit that includes current sources that are coupled in parallel. Configuration bits are asserted to selectively enable or selectively disable one or more of the current sources in order to modulate the performance of the operational amplifier circuit block. Selective addition or removal of current sources increases or decreases the amount of current within the operational amplifier and, correspondingly, the speed and power consumption of the operational amplifier. Combinations of asserted configuration bits pass a bias voltage in order enable selected current sources. In one embodiment, the bias voltage can be increased in order to increase the current output of one of the current sources which, correspondingly, increases the speed of the operational amplifier circuit block.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of U.S. patent application Ser. No. 09 / 943,062, filed Aug. 29, 2001, which claims the benefit of U.S. Provisional Application No. 60 / 243,708, filed Oct. 26, 2000, all of which are incorporated herein by reference in their entirety.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to the field of power management. More specifically, the present invention relates to the field of programmable power management in a programmable analog circuit containing an operational amplifier.[0004]2. Related Art[0005]A microcontroller is a highly integrated chip having all or most of the necessary components to control some process or aspect in a circuit. For example, the microcontroller typically includes a central processing unit (CPU), random access memory (RAM), read only memory (ROM), input / output (I / O) interfaces, timers, and interrupt controller. The typical microcontroll...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): H03F3/04
CPCG06F11/3652
InventorMAR, MONTE
OwnerCYPRESS SEMICON CORP