CMOS output driver which can tolerate an output voltage greater

Details CMOS output driver which can tolerate an output voltage greater CMOS output driver which can tolerate an output voltage greater

1994-03-14

1995-09-19

Hudspeth, David R.

Electronic digital logic circuitry

Interface

Supply voltage level shifting

327534, H03K 190175

Patent

active

054518890

ABSTRACT:
A mixed mode buffer circuit 11 including a first input (12), a second input (13), and an output (14). A voltage exceeding a supply voltage of mixed mode buffer circuit 11 can be applied to the output (14) without latchup or an increase in leakage current. The mixed mode buffer includes an output transistor (24) of a first conductivity type having a first electrode coupled to the output (14), a control electrode coupled to the first input (12), a second electrode coupled for receiving the supply voltage, and a bulk electrode. A first transistor (19) biases the bulk electrode when the voltage at the output is within a first predetermined range. A first bulk bias circuit (28) biases the bulk electrode when the output voltage is within a second predetermined range. A second bulk bias circuit (27) and a second transistor (18) couples the voltage at the output to the bulk electrode and the control electrode respectively, when the output voltage exceeds the second predetermined range.

REFERENCES:
patent: 4782250 (1988-11-01), Adams et al.
patent: 4963766 (1990-10-01), Lundberg
patent: 5015889 (1991-05-01), Reay
patent: 5144165 (1992-09-01), Dhong et al.
patent: 5151619 (1992-09-01), Austin et al.
patent: 5160855 (1992-11-01), Dobberpuhl

Affiliated with

Also associated with

Rating

CMOS output driver which can tolerate an output voltage greater does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with CMOS output driver which can tolerate an output voltage greater , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CMOS output driver which can tolerate an output voltage greater will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1830676