Temperature independent reference current generation for calibration

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United States of America Patent

PATENT NO 9704591
SERIAL NO

15082241

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Abstract

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Disclosed herein are techniques for generating a temperature independent reference current, which may be used during calibration. The temperature independent reference current may be generated based on a current through an on-chip calibration resistor. This alleviates the need for an off chip calibration resistor, which can be costly and cause slow calibration. A voltage at one terminal of the on chip calibration resistor may be modulated to substantially cancel a temperature coefficient of the on chip calibration resistor. This may result in the current passing through the on chip calibration resistor being temperature independent. The temperature independent reference current may be based on a reference voltage and a target calibration resistance.

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Patent Owner(s)

Patent OwnerAddress
SANDISK TECHNOLOGIES LLC5080 SPECTRUM DRIVE SUITE 1050W ADDISON TX 75001

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Samineni, Rangarao Bangalore, IN 4 25
Taigor, Subodh Prakash Bangalore, IN 6 23
Yadala, Sridhar Bangalore, IN 26 271

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