Operational amplifying device with auto-adjustment output impedance
The invention provides an operational amplifying device with auto-adjustment output impedance, including a operational amplifier, a first signal path, a second signal path, and a third signal path. The output of the operational amplifier is connected to the inverted input of the operational amplifie...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention provides an operational amplifying device with auto-adjustment output impedance, including a operational amplifier, a first signal path, a second signal path, and a third signal path. The output of the operational amplifier is connected to the inverted input of the operational amplifier, and non-inverted input of the operational amplifier receives an input signal. The first signal path is high resistance, and the second and the third signal paths are low resistance. Each end of the first, second, and third signal paths is connected to the output of the operational amplifier, and each the other end of the first, second, and third signal paths is connected to a first output node. The first signal path is normally on and the second and the third signal paths are normally off. When the input signal is in a steady state, the second and the third signal paths are turned off. When the input signal is in a transition state, the second or the third signal paths is turned on to reduce the resistance betwe |
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