LMF90 is 4th-Order Elliptic Notch Filter manufactured by National Semiconductor.
| 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 |
| LMF60 | LMF60 High Performance 6th-Order Switched Capacitor Butterworth Lowpass Filter |
The LMF90 is a fourth-order elliptic notch (band-reject) filter based on switched-capacitor techniques No external ponents are needed to define the response function The depth of the notch is set using a two-level logic input and the width is programmed using.
