Patent ID: 11908530
Assignee: MICRON TECHNOLOGY, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 18:
19. A method of operating a memory device comprising a memory array, a diode having a threshold voltage that changes with temperature, and an analog-to-digital converter (ADC) coupled with the memory array, the ADC comprising a voltage comparator having a positive terminal coupled with the diode, a first capacitor coupled between a negative terminal of the voltage comparator and ground, and a second capacitor coupled between the first capacitor and a voltage reference node, the second capacitor also coupled with the ground and having a smaller capacitance than that of the first capacitor, and wherein the method of operating the memory device comprises:
directing a pulse generator to generate pulses, wherein the pulses are to cause the first capacitor to connect to the second capacitor and equalize charge between the first capacitor and the second capacitor;
generating, from the pulses, an inverted signal that is to cause the second capacitor to be coupled with the voltage reference node to precharge the first capacitor before equalization of the charge between the first capacitor and the second capacitor; and
tracking a number of one values output by the voltage comparator to determine a temperature value of the diode.