Wheatstone bridge amplifier circuit with integrated diagnostic testing

摘要: An amplifier circuit and method of providing diagnostic testing to a Wheatstone bridge are provided herein. The includes balanced such as employed in piezoresistive transducer which produces differential output signal. also an having input for amplifying signals. A test is coupled between the pair resistors with current sources may be switched via electronic switches. With in, known offset voltage applied across monitored compared initial By comparing signal signal, determination gain other characteristics can made.