Calibration circuit and method of use

A calibration circuit (100;300) includes a single-wire memory (110;214,U1;402) and a transmission line (120;310). The single-wire memory includes a power/interrogation terminal(320) and a ground terminal(330). The single-wire memory is configured to store calibration data for a sensor (130,202). The transmission line is configured to be coupled between the sensor and a sensor reader (140,210). The transmission line includes first and second conductors(216,222). The first conductor is coupled to the power/interrogation terminal and is configured to provide the calibration data and a sensor output signal to the sensor reader. The second conductor is coupled to the ground terminal and is configured to provide a ground reference for the first conductor, the single-wire memory, and the sensor. 种校准电路（100；300），包含单线存储器（110；214；U1；402）和传输线（120；310）。单线存储器包含供电/询问端（320）和接地端（330）。单线存储器配置为存储传感器（130；202）的校准数据。传输线配置为耦合在传感器与传感器读取器（140；210）之间。传输线包含第和第二导体（216，222）。第导体耦合到供电/询问端并且配置为提供校准数据和传感器输出信号到传感器读取器。第二导体耦合到接地端并且配置为提供第导体、单线存储