Active Filter Single SW-CAP Low Pass 4th Order 20kHz 8-Pin SOIC T/R

The TLC04/MF4A-50 and TLC14/MF4A-100 are monolithic Butterworth low-pass switched-capacitor filters.Each is designed as a low-cost, easy-to-use device providing accurate fourth-order low-pass filter functions in circuit design configurations. Each filter features cutoff frequency stability that is dependent only on the external-clock frequency stability.The cutoff frequency is clock tunable and has a clock-to-cutoff frequency ratio of 50:1 with less than ±0.8% error for the TLC04/MF4A-50 and a clock-to-cutoff frequency ratio of 100:1 with less than ±1% error for the TLC14/MF4A-100. The input clock features self-clocking or TTL- or CMOS-compatible options in conjunction with the level shift (LS) terminal. The TLC04C/MF4A-50C and TLC14C/MF4A-100C are characterized for operation from 0°C to 70°C. The TLC04I/MF4A-50I and TLC14I/MF4A-100I are characterized for operation from -40°C to 85°C. The TLC04M/MF4A-50M and TLC14M/MF4A-100M are characterized over the full military temperature range of -55°C to 125°C.  

Low Clock-to-Cutoff-Frequency Ratio Error

TLC04/MF4A-50 . . . ±0.8%
TLC14/MF4A-100 . . . ±1%

Filter Cutoff Frequency Dependent Only on External-Clock Frequency Stability

Minimum Filter Response Deviation Due to External Component Variations Over Time and Temperature

Cutoff Frequency Range From 0.1 Hz to 30 kHz, V_CC± = ±2.5 V

5-V to 12-V Operation

Self Clocking or TTL-Compatible and CMOS-Compatible Clock Inputs

Low Supply-Voltage Sensitivity

Designed to be Interchangeable With National MF4-50 and MF4-100