LF351DT STMicroelectronics

LF351 Wide bandwidth single JFET operational amplifiers Features Internally adjustable input offset voltage Low power consumption + Wide common-mode (up to V ) and CC differential voltage range N DIP8 Low input bias and offset current (Plastic package) Output short-circuit protection High input impedance JFET input stage Internal frequency compensation Latch up free operation High slew rate 16 V/s (typical) D SO-8 (Plastic micro package) Description These circuits are high speed JFET input single operational amplifiers incorporating well matched, Pin connections high voltage JFET and bipolar transistors in a (top view) monolithic integrated circuit. The devices feature high slew rates, low input bias and offset currents, and low offset voltage temperature coefficient. 1 - Offset null 1 2 - Inverting input 3 - Non-inverting input 4 - V - CC 5 - Offset null 2 6 - Output 7 - V + CC 8 - N.C. April 2008 Rev 2 1/14 www.st.com 14Schematics LF351 1 Schematics Figure 1. Schematic diagram V CC Non-inverting input Inverting input 100W 200W Output W 100 30k 8.2k W 100 1.3k 35k 1.3k 35k V CC Offset Null1 Offset Null2 Figure 2. Input offset voltage null circuit 2/14