发明名称 |
Bolometer-type infrared imaging apparatus including a one or two dimensional sensor array semiconductor device |
摘要 |
Disclosed is a bolometer infrared imaging device including a plural number of readout circuits, each comprising a bias circuit that includes a bias transistor that supplies a constant voltage to a bolometer device, a bias cancellation circuit that includes a canceller transistor that removes offset current component of the bolometer device and an integrating operational amplifier that integrates the difference current between the current flowing in the bias transistor and that flowing in the canceller transistor. The bias circuit includes a source follower circuit that receives a first input voltage and supplies an output voltage to the gate of the bias transistor. The bias cancellation circuit includes a source follower circuit that receives a second input voltage and supplies an output voltage to the gate of the canceller transistor.
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申请公布号 |
US7663088(B2) |
申请公布日期 |
2010.02.16 |
申请号 |
US20070826086 |
申请日期 |
2007.07.12 |
申请人 |
NEC ELECTRONICS CORPORATION |
发明人 |
KAWANO KATSUYA |
分类号 |
H01J40/14;G01J1/42;H01L27/00;H01L27/14;H04N5/335;H04N5/357;H04N5/374 |
主分类号 |
H01J40/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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