Title:
SEMICONDUCTOR INTEGRATED CIRCUIT, SENSOR READING DEVICE, AND SENSOR READING METHOD
Document Type and Number:
WIPO Patent Application WO/2017/187474
Kind Code:
A1
Abstract:
Disclosed is a sensor reading device, wherein an IC chip (10) having functions of amplifying and outputting sensor signals transmitted from sensor elements included in a sensor array (11), is provided with a plurality of channel amplifiers (111-1 to 111-n) connected to the sensor elements, respectively. When an output switch (114) is turned on, and the IC chip (10) is in an output state, channel switches (112-1 to 112-n) are sequentially switched, and sensor amplification signals are sequentially outputted from the channel amplifiers (111-1 to 111-n). When the output switch (114) is shut off, and the IC chip (10) is in a non-output state, a low power consumption state is achieved by reducing the bias current of operation amplifiers of the channel amplifiers (111-1 to 111-n), and the gain of the operation amplifiers is reduced.
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Inventors:
OGOMI TOMOKAZU (JP)
NAKAI TAKAYUKI (JP)
NAKAI TAKAYUKI (JP)
Application Number:
PCT/JP2016/062889
Publication Date:
November 02, 2017
Filing Date:
April 25, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H03F3/45; H03F3/72; H03G3/10; H03G5/12
Foreign References:
| JP2013038764A | 2013-02-21 | |||
| JPS59154511A | 1984-09-03 | |||
| JP2002124842A | 2002-04-26 | |||
| US7403065B1 | 2008-07-22 | |||
| JPH11296245A | 1999-10-29 | |||
| JP2004201044A | 2004-07-15 |
Attorney, Agent or Firm:
KIMURA Mitsuru (JP)
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