Hardware Efficient On-Chip Digital Temperature Coefficient Voltage Generator and Method

A method of generating a voltage on an integrated circuit chip having an output voltage with a selectable digital temperature coefficient and digital level, said method comprising:

• specifying a temperature coefficient code word, the temperature coefficient code word being bits representing digitally a given temperature coefficient among a predefined range of temperature coefficients of the output voltage;
• specifying a voltage level code word, the voltage level code word being bits representing digitally a given voltage level among a predefined range of output voltage levels;
• sensing a temperature of the integrated circuit chip, said temperature producing a sensor voltage level to indicate a sensed temperature as a function of the sensor voltage level;
• providing an analog-to-digital converter to convert the sensor voltage level to yield a temperature code word, the temperature code word being bits representing digitally the sensor voltage level among a predefined range of sensor voltage levels corresponding to a predefined range of temperature;
• providing a set of digital processing circuits for digitally computing an output voltage code word by inverting the temperature code word and forming a product with said temperature coefficient code word from said first input, and adding the product to said voltage level code word from said second input;
• and
• providing a digital-to-analog converter for converting the output voltage code word to a corresponding output voltage level.