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LMF60 - LMF60 High Performance 6th-Order Switched Capacitor Butterworth Lowpass Filter

General Description

The LMF60 is a high performance precision 6th-order Butterworth lowpass active filter It is fabricated using National’s LMCMOS process an improved silicon-gate CMOS process specifically designed for analog products Switchedcapacitor techniques eliminate external component requirements and allow a cl

Key Features

  • Y Y Y Y Y Y Y Y Y Y Y Cutoff frequency range of 0 1 Hz to 30 kHz Cutoff frequency accuracy of g 1 0% maximum Low offset voltage g 100 mV maximum g 5V supply Low clock feedthrough of 10 mVp.
  • p typical Dynamic range of 88 dB typical Two uncommitted op amps available No external components required 14-pin DIP or 14-pin wide-body S O package Single Dual Supply Operation a 4V to a 14V ( g 2V to g 7V) Cutoff frequency set by external or internal clock Pin-compatible with the MF6.

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Other Datasheets by National Semiconductor (now Texas Instruments)

Part Number Description
LMF100 High Performance Dual Switched Capacitor Filter
LMF120 Mask-Programmable Switched-Capacitor Active Filter System
LMF380 LMF380 Triple One-Third Octave Switched-Capacitor Active Filter
LMF90 4th-Order Elliptic Notch Filter

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LMF60 High Performance 6th-Order Switched Capacitor Butterworth Lowpass Filter May 1996 LMF60 High Performance 6th-Order Switched Capacitor Butterworth Lowpass Filter General Description The LMF60 is a high performance precision 6th-order Butterworth lowpass active filter It is fabricated using National’s LMCMOS process an improved silicon-gate CMOS process specifically designed for analog products Switchedcapacitor techniques eliminate external component requirements and allow a clock-tunable cutoff frequency The ratio of the clock frequency to the low-pass cutoff frequency is internally set to 50 1 (LMF60-50) or 100 1 (LMF60-100) A Schmitt trigger clock input stage allows two clocking options either self-clocking (via an external resistor and capacitor) for stand-alone applications or