The LM363 is a monolithic true instrumentation amplifier It requires no external parts for fixed gains of 10 100 and 1000 High precision is attained by on-chip trimming of offset voltage and gain A super-beta bipolar input stage gives very low input bias current and voltage noise extremely low offset voltage drift and high common-mode rejection ratio A two-stage amplifier design yields an open loop gain of 10 000 000 and a gain bandwidth product of 30 MHz yet remains stable for all closed loop gains The LM363 operates with supply voltages from g 5V to g 18V with only 1 5 mA current drain