LM2479NA

LM2479 120V Triple Bias Clamp October 2000 LM2479 120V Triple Bias Clamp General Description The LM2479 is an Integrated 120V triple bias clamp circuit for DC recovery of each of the AC coupled outputs of a CRT driver. It is well matched with the DAC outputs of the LM126X family of pre-amplifiers. Each amplifier has its gain internally set to -18. The IC is packaged in an industry standard 8 lead molded DIP package. n High input impedance n Single supply operation n Matched to the LM126X family of preamplifiers Recommended Applications n CRT monitors requiring DC restoration at the cathodes Features n Wide range integrated triple bias clamp Block Diagrams Package Pinout DS101391-2 FIGURE 2. LM2479 Package Pinout Order Number LM2479NA NS Package Number: N08E DS101391-1 FIGURE 1. Simplified Schematic (One Channel) © 2000 National Semiconductor Corporation DS101391 www.national.com LM2479 Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage, VCC Input Voltage, VIN Storage Temperature Range, TSTG Lead Temperature (Soldering, < 10sec.) +130V 0V to 5V -65˚C to +150˚C 300˚C ESD Tolerance, Machine Model 200V (Note 3) 110 to 125 50 to 120V 0 to 70˚C Limits of Operating Ranges VCC VOUT, VCC = 120V Ambient Temperature Range, TA DC CLAMP ELECTRICAL CHARACTERISTICS TARGETS AND LIMIT Unless otherwise noted: VCC = +120...