| 摘要 |
A high gain, linear open loop amplifier is shown. The output of a transconductance amplifier (264) is connected to a load resistor (315). A resistive voltage divider network (292,293,294,295) is connected to an input signal conductor (431). The resistor (293) connected across the inputs of the differential amplifier (264) has a very small value compared to the other resistors (292,294,295), thereby providing a very small differential voltage across the inputs to the amplifier (264). The small input voltage, the small output current of the amplifier (264), and the resistance of the load (315) force the amplifier (264) to operate as a linear, open loop amplifier.
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