Low voltage operation bias current generation circuit

Details Low voltage operation bias current generation circuit Low voltage operation bias current generation circuit

2011-01-11

2011-01-11

Le, Thong Q (Department: 2827)

Static information storage and retrieval

Read/write circuit

Including reference or bias voltage generator

C365S100000, C365S210120, C365S148000

Reexamination Certificate

active

07869285

ABSTRACT:
Devices and systems for generating a bias current with a low minimum voltage, for example, are disclosed. One such device includes a first transistor having a source coupled to a voltage supply, a drain coupled to a first node, and a gate coupled to a second node, a second transistor having a source coupled to a reference, and a drain and a gate coupled to the first node, a third transistor having a source coupled to the reference, a drain coupled to a third node, and a gate coupled to the first node, a first resistive element coupled between the voltage supply and the third node, a second resistive element coupled between the voltage supply and the second node, and a fourth transistor having a source coupled to the reference, a drain coupled to the second node, and a gate coupled to the third node.

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Sedra, A.S., and K. C. Smith, multiple chapters in Microelectronic Circuits, 4th Edition, Oxford University Press, 1998, pp. 402-412.

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