LATERAL TRANSISTOR CURRENT SENSING THAT COMPENSATES FOR EARLY VOLTAGE
Original Publication Date: 1993-Mar-01
Included in the Prior Art Database: 2002-Jan-28
SENSE cur Transistors Ql and Q2 shown in the above sche- matic are the output devices of an operational amplifier that is capable of a large dynamic output voltage swing. The function of the remaining circuitry is to accurately reproduce a fraction (l/N) of the amplier's output cur- rent (Iout) at the SENSE OUT terminal. The current Isense must be independent of the voltage which appears at the SENSE OUT terminal.