Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1997-10-20
1999-09-07
Cunningham, Teny D.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
323313, 323315, G05F 302
Patent
active
059492775
ABSTRACT:
The present invention provides a nominal temperature and process compensating bias circuit for an integrated circuit. The bias circuit comprises a current source, a pair of linear devices, and a current stage. The current source generates a bias current. The pair of linear devices includes a first linear device and a second linear device. The first and second linear devices are coupled to each other and to the current source at a common node to enable the bias current from the current source to flow through the linear devices. The current stage includes a first transistor and a second transistor with the first transistor being coupled to the first linear device at the drain node of the first transistor and the second transistor being coupled to the second linear device at the drain node of the second transistor. In this configuration, the first and the second transistors have different channel width (W) to channel length (L) ratios such that the transistor with a larger W to L ratio conducts more current than the transistor with smaller W to L ratio to generate a voltage at the drain of the transistor with larger W to L ratio, thereby counteracting variations in temperature and process in the integrated circuit.
REFERENCES:
patent: 4810902 (1989-03-01), Storti et al.
patent: 4837496 (1989-06-01), Erdi
patent: 5479092 (1995-12-01), Pigott et al.
patent: 5631551 (1997-05-01), Scaccianoce et al.
patent: 5686823 (1997-11-01), Rapp
patent: 5694072 (1997-12-01), Hsiao et al.
patent: 5808507 (1998-09-01), Melse et al.
Cunningham Teny D.
VLSI Technology Inc.
LandOfFree
Nominal temperature and process compensating bias circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Nominal temperature and process compensating bias circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nominal temperature and process compensating bias circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1807834