发明名称 |
SWITCH USED IN PROGRAMMABLE GAIN AMPLIFILIER AND PROGRAMMABLE GAIN AMPLIFILIER |
摘要 |
<p>A switch circuit is provided. The switch circuit may include a first transistor having a source terminal to accept an input signal, a drain terminal to provide an output signal, and a gate; a power supply providing a gate voltage. The switch circuit may also include a circuit to couple a switch signal to the gate, wherein the circuit turns the first transistor off for all values of the input signal when the switch signal is low. A programmable gain amplifier (PGA) is also provided. The PGA may include an input stage having an input node to couple an input signal, and an output node to provide a gate signal, at least a first gain stage including a resistor and a switch circuit as above. A differential gain amplifier may be included to provide an output signal from the gain signal.</p> |
申请公布号 |
EP2630728(A1) |
申请公布日期 |
2013.08.28 |
申请号 |
EP20100858527 |
申请日期 |
2010.10.21 |
申请人 |
ATMEL CORPORATION |
发明人 |
WEI, CHANGMING;ZHANG, YU;JIANG, LIXIN;CHEN, JINFU;BARROW, JEFFREY G. |
分类号 |
H03G3/20;H02M1/08;H03K17/06;H03K17/687 |
主分类号 |
H03G3/20 |
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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