LM6121 Datasheet, PDF (1/13 Pages) National Semiconductor (TI) – High Speed Buffer

OBSOLETE
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LM6121
LM6221, LM6321
SNOSC10C – MAY 1998 – REVISED APRIL 2013
LM6121/LM6221/LM6321 High Speed Buffer
Check for Samples: LM6121, LM6221, LM6321
FEATURES
1
•23 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 Specified
• Current and Thermal Limiting
• Fully Specified to Drive 50Ω Lines
APPLICATIONS
• Line Driving
• Radar
• Sonar
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.
SIMPLIFIED SCHEMATIC
Numbers in ( ) are for 8-pin N DIP.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
VIP is a trademark of Texas Instruments.
2
All other trademarks are the property of their respective owners.
3
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1998–2013, Texas Instruments Incorporated