Abstract: The present disclosure relates to a temperature-to-digital converter that fulfills the requirement of sensing temperature in applications, such as automotive, where operation in a wide temperature range is essential. Due to the dependency of the transistor models on the temperature, the conventional temperature sensors have a limited range in which they have an acceptable function. The disclosed sensor overcomes this problem by introducing a design independent of the transistor model and relies on cancelling and matching temperature non-linearity of different blocks. The approach according to the present disclosure enables the design of a temperature sensor that is operational in the never before achieved range of ?55° C. to 200° C.

Abstract: Various embodiments disclosed herein provide for an improved method for sensing the temperature at an individual sensor location that is both small in size, and the temperature can be determined independent of the temperature of the Temperature Management Controller (TMC). The method includes determining the temperature at the temperature sensing element or circuit based on a function of two voltages measured at the temperature sensing element. In a first embodiment, the two voltages are measured at two transistors that are each being supplied with the same current.

Abstract: The present disclosure relates to a voltage reference generator without temperature dependency. The disclosed voltage reference generator includes a precursor voltage generator and a voltage extractor. The precursor voltage generator is configured to provide a base-emitter voltage, a proportional-to-absolute-temperature (PTAT) voltage, and a nonlinear (NL) voltage. The voltage extractor is configured to scale and sum the base-emitter voltage, the NL voltage, and the PTAT voltage and provide an output voltage, such that linear temperature dependent components and nonlinear temperature dependent components within the base-emitter voltage, the NL voltage, and the PTAT voltage are not included in the output voltage, which is temperature independent.

Abstract: The present disclosure relates to a digital-to-analog converter (DAC) linearization system including a DAC, a summing buffer structure, an analog-to-digital converter (ADC), a calculation system, an error look-up table, and an adder. A combination of the DAC, the summing buffer structure, and the ADC sequentially provide first and second ADC output signals, both of which include DAC integral nonlinearity (INL). The calculation system calculates the DAC INL based on the first and second ADC output signals, the error look-up table provides a correction signal mapping to the calculated DAC INL, and the adder provides a calibrated digital input signal to the DAC based on the correction signal. The calibrated digital input signal ensures the DAC to generate an updated output signal with less nonlinearity and improved purity.