Advanced Micro Devices Corporation

Tsen-Shau Yang

Michael R Allen

Disclosed is a digital signal translation circuit for translating a first type signal to a second type signal which comprises a master latch and a slave latch. The master latch latches the incoming first type signal during a first portion of the clock signal. A slave latch latches the master latch output and generates a differential output. The differential output of the slave drives an output driver circuit which generates the second type signal.

Digital signal level translation/master-slave flip flop with look-ahead

A bandgap reference voltage generator includes compensation circuitry that renders the performance of the bandgap reference voltage generator independent of the static value of the supply voltage, V.sub.CC by providing a constant current through the self-regulating loop in the generator. The compensation circuitry effectively provides compensating terms for each V.sub.CC -dependent term in the network equation that describes the operation of the bandgap reference voltage generator. In a preferred embodiment, the compensating terms also serve to make the operation of the bandgap voltage generator independent of temperature.

Bandgap reference voltage generator with V.sub.CC compensation

A temperature compensated differential level shift circuit is provided. An ECL type buffered differential circuit employs a source of threshold voltage, V.sub.T, which matches the temperature-dependent characteristic of the input section of the level shift circuit. In a preferred embodiment, a Schottky diode is provided in the output section of a bandgap reference voltage generator which matches the temperature dependence of a Schottky diode in the input section of the level shift circuit. As temperature shifts, the threshold voltage will shift in a manner that tracks the temperature-produced shift in the input voltage as it passes through the Schottky diode in the input section of the level shift circuit. Matched PNP or NPN transistors may also be used in the input section of the level shift circuit and in the output section of the bandgap reference voltage generator.

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San Jose, CA, United States of America

Tsen-Shau Yang