Invention Grant
US09377795B1 Temperature correction of an on-chip voltage reference 有权
片内参考电压的温度校正

  • Patent Title: Temperature correction of an on-chip voltage reference
  • Patent Title (中): 片内参考电压的温度校正
  • Application No.: US14543526
    Application Date: 2014-11-17
  • Publication No.: US09377795B1
    Publication Date: 2016-06-28
  • Inventor: Ionut C. CicalEdward Cullen
  • Applicant: Xilinx, Inc.
  • Applicant Address: US CA San Jose
  • Assignee: XILINX, INC.
  • Current Assignee: XILINX, INC.
  • Current Assignee Address: US CA San Jose
  • Agent Keith Taboada; Robert M. Brush
  • Main IPC: G05F1/46
  • IPC: G05F1/46 H03F1/30
Temperature correction of an on-chip voltage reference
Abstract:
In an example, a temperature-corrected voltage reference circuit for use in an integrated circuit (IC) includes a voltage reference circuit, a programmable gain amplifier, and a digital control circuit. The programmable gain amplifier includes a first input coupled to the voltage reference circuit, a second input coupled to receive a control signal, and an output coupled to provide a temperature-corrected voltage reference. The digital control circuit includes an input coupled to receive a temperature signal indicative of temperature of the IC and an output coupled to the second input of the programmable gain amplifier, the digital control circuit generating the control signal in response to the temperature signal.
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