发明名称 |
On-chip reference current and voltage generating circuits |
摘要 |
Provided is an on-chip reference current generating circuit for generating a reference voltage that can be digitally calibrated and is substantially not affected by changes in temperature and/or supply voltage. The on-chip reference current generating circuit includes a summing circuit for receiving a first current having a negative temperature coefficient and a second current having a positive temperature coefficient, and outputting a third current based upon, is a sum of, the first and second currents; and a digital calibration circuit for calibrating the third current to be the reference current in response to a digital control signal. Using the on-chip reference current generating circuit, it is possible to precisely and digitally calibrate an offset between currents due to a change in temperature and/or supply voltage.
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申请公布号 |
US2003155650(A1) |
申请公布日期 |
2003.08.21 |
申请号 |
US20030368398 |
申请日期 |
2003.02.20 |
申请人 |
MOON KYOUNG-HO;LEE SEUNG-HOON;PARK JONG-BUM;YANG HEE-SEUK |
发明人 |
MOON KYOUNG-HO;LEE SEUNG-HOON;PARK JONG-BUM;YANG HEE-SEUK |
分类号 |
G05F3/08;G05F3/24;H01L23/34;(IPC1-7):H01L23/34 |
主分类号 |
G05F3/08 |
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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