Title:
内部集積回路抵抗の較正
Document Type and Number:
Japanese Patent JP6619471
Kind Code:
B2
Abstract:
The sensor interface IC measures or calibrates a target resistance to be used as a gain resistor for a TIA amplifier in the sensor interface IC. One or more excitation currents are generated in response to different specified excitation voltages that are applied to an external calibration resistor having a specified calibration resistance value. Response voltages are measured across the target resistor, respectively in response to the corresponding different one or more excitation currents. The resistance value of the target resistor is determined using a difference between the measured response voltages, a difference between the specified excitation voltages, and the specified calibration resistance value.
Inventors:
Guanyang Chu
Lychen Chen
Michael Rooney
Lychen Chen
Michael Rooney
Application Number:
JP2018088746A
Publication Date:
December 11, 2019
Filing Date:
May 02, 2018
Export Citation:
Assignee:
Analog Divisis Global Unlimited Company
International Classes:
H01L21/822; G01N27/12; G01N27/404; G01R27/02; H01L27/04
Domestic Patent References:
| JP2010145373A | ||||
| JP2016090379A | ||||
| JP2011150582A | ||||
| JP2016102750A |
Foreign References:
| WO2011151856A1 | ||||
| US20130038340 |
Attorney, Agent or Firm:
Yasuhiko Murayama
Shinya Mitsuhiro
Tatsuhiko Abe
Shinya Mitsuhiro
Tatsuhiko Abe