LM6321

LM6121/LM6221/LM6321 High Speed Buffer May 1998 LM6121/LM6221/LM6321 High Speed Buffer General Description These high speed unity gain buffers slew at 800 V/µs and have a small signal bandwidth of 50 MHz while driving a 50Ω load. They can drive ± 300 mA peak and do not oscillate while driving large capacitive loads. The LM6121 family are monolithic ICs which offer performance similar to the LH0002 with the additional features of current limit and thermal shutdown. These buffers are built with National’s VIP™ (Vertically Integrated PNP) process which provides fast PNP transistors that are true complements to the already fast NPN devices. This advanced junction-isolated process delivers high speed performance without the need for complex and expensive dielectric isolation. Features n n n n n n n n n n High slew rate: 800 V/µs Wide bandwidth: 50 MHz Slew rate and bandwidth 100% tested Peak output current: ± 300 mA High input impedance: 5 MΩ LH0002H pin compatible No oscillations with capacitive loads 5V to ± 15V operation guaranteed Current and thermal limiting Fully specified to drive 50Ω lines Applications n Line Driving n Radar n Sonar Simplified Schematic DS009223-1 Numbers in ( ) are for 8-pin N DIP. VIP™ is a trademark of National Semiconductor Corporation. © 1999 National Semiconductor Corporation DS009223 www.national.com Connection Diagrams Plastic DIP DS009223-2 *Heat-sinking pins. See Application section on heat sinking requirements. Order Number LM6221...