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发明公开
CN107306116A 模拟前端电路 有权

模拟前端电路
摘要：
一个实施例提供了模拟前端电路。当斩波信号具有第一逻辑值时，非反相仪表前置放大器从第一输入电压减去第二输入电压，并且在输出第二输入电压作为第二输出电压的同时通过放大相减电压来生成第一输出电压。当斩波信号具有第二逻辑值时，非反相仪表前置放大器从第二输入电压减去第一输入电压，并且在输出第二输入电压作为第二输出电压的同时通过放大并且然后反相相减电压的极性来生成第一输出电压。
摘要（英）：

One embodiment provides an analog front-end circuit. When a chopping signal has a first logical value, a non-inverting instrumentation preamplifier subtracts a second input voltage from a first input voltage and generates a first output voltage by amplifying a subtraction voltage while outputting the second input voltage as a second output voltage. When the chopping signal has a second logical value, the non-inverting instrumentation preamplifier subtracts the first input voltage from the second input voltage and generates the first output voltage by amplifying and then inverting the polarity of a subtraction voltage while outputting the second input voltage as the second output voltage.

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