LF353

LF253, LF353 Wide bandwidth dual JFET operational amplifiers Features ■ Low power consumption ■ Wide common-mode (up to VCC+) and differential voltage range ■ Low input bias and offset current ■ Output short-circuit protection ■ High input impedance JFET input stage ■ Internal frequency compensation ■ Latch up free operation ■ High slew rate 16 V/µs (typical) Description These circuits are high speed JFET input dual operational amplifiers incorporating well matched, high voltage JFET and bipolar transistors in a monolithic integrated circuit. The devices feature high slew rates, low input bias and offset currents, and low offset voltage temperature coefficient. N DIP8 (Plastic package) D SO-8 (Plastic micro package) Pin connections (top view) 1 23+ 4 8 7 - 6 + 5 1 - Output1 2 - Inverting input 1 3 - Non-inverting input 1 4 - VCC5 - Non-inverting input 2 6 - Inverting input 2 7 - Output 2 8 - VCC+ March 2010 Doc ID 2153 Rev 3 1/15 www.st.com 15 Schematics 1 Schematics Figure 1. Schematic diagram (each amplifier) VCC+ LF253, LF353 Non-inverting input Inverting input 100 Ω 200 Ω 100 Ω 30 k Output VCC- 1.3 k 35 k 1.3 k 35 k 100 Ω Offset Null1 Offset Null2 8.2 k 2/15 Doc ID 2153 Rev 3 LF253, LF353 Absolute maximum ratings and operating conditions 2 Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings Symbol Parameter Value Unit VCC Vi Vid Rthja Rthjc Supply voltage(1) Input voltage(2) Differential input ...