| 摘要 |
A current mirror comprising: current source; a first p-channel transistor having a source coupled to operating potential, and a gate and drain coupled to current source; a second p-channel transistor having a source coupled to operating potential, a gate coupled to gate of first p-channel transistor, and a drain; a zero-threshold p-channel transistor having a source coupled to drain of second p-channel transistor, a gate coupled to gate of first p-channel transistor, and a drain; a first n-channel transistor having a source coupled to ground, and a gate and drain coupled to drain of zero-threshold p-channel transistor; a second n-channel transistor having a source coupled to ground, a gate coupled to gate of first n-channel transistor, and a drain; and a zero-threshold n-channel transistor having a source coupled to drain of second n-channel transistor, a gate coupled to gate of first n-channel transistor, and a drain coupled to current-output node.
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