Operational amplifier with selectable performance...

Details Operational amplifier with selectable performance... Operational amplifier with selectable performance...

2006-04-18

2006-04-18

Jeanpierre, Peguy (Department: 2819)

Amplifiers

Combined with automatic amplifier disabling switch means

C330S009000, C330S122000, C330S255000, C330S310000, C330S311000

Reexamination Certificate

active

07030690

ABSTRACT:
An operational amplifier with selectable performance characteristics is provided. The operational amplifier provides a sleep mode (e.g., fully disabled) in addition to providing a number of different levels of awake operation (e.g., different performance characteristics). As such, the op-amp can allow a system to use only the power needed to obtain a required level of performance at any point in time. For example, the op-amp may be operated at a minimum power mode, an awake at mid-level power mode, or an awake at maximum power mode.

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IEEE 0018-9200/82/1200-0969 1982, “MOS Operational Amplifier Design—A Tutorial Overview”, IEEE Journal of Solid-State Circuits, vol. SC-17, No. 6, Dec. 1982.
IEEE 0018-9200/94 1994, “Switched-Opamp: An Approach to Realize Full CMOS Switched-Capacitor Circuits at Very Low Power Supply Voltages”, IEEE Journal of Solid-State Circuits, vol. 29, No. 8, Aug. 1994.

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