公开(公告)号：US20250003809A1

公开(公告)日：2025-01-02

申请号：US18345253

申请日：2023-06-30

Applicant: Apple Inc.

Inventor： Soheil GOLARA ,  Daniel Joel Bankman ,  Robin Gupta ,  Seyedeh Sedigheh Hashemi ,  Mansour Keramat

IPC: G01K7/01

Abstract: The present disclosure describes embodiments of a temperature sensor with full band PSR. The temperature sensor can include a reference voltage generator, a temperature circuit, and an analog-to-digital converter (ADC). The reference voltage generator is configured to generate a reference voltage. The temperature circuit is configured to operate under a substantially constant bias current and to generate a temperature signal proportional to temperature. The ADC is electrically coupled to the reference voltage generator and the temperature circuit and configured to convert the temperature signal to a digital representation based on a sampling frequency. The ADC comprises a frequency generator configured to generate a modulation frequency having a random variation. The sampling frequency is modulated by the modulation frequency.