LMF100CCN/NOPB

Overview

The LMF100CCN/NOPB is a dual high-performance switched capacitor filter manufactured by Texas Instruments. It operates on a wide power supply range of 4 V to 15 V and supports clock frequencies up to 100 kHz. The device features low offset voltage, typically ±5 mV in the 50:1 mode, and achieves a clock-to-center frequency ratio accuracy of ±0.2%. Each filter block provides three outputs for bandpass, lowpass, and notch/allpass/highpass functions. The f0 × Q range extends up to 1.8 MHz, allowing realization of fourth-order biquadratic functions with a single package.

Feature Summary

• Dual independent second-order switched capacitor filter blocks
• Low DC offset voltage for improved signal integrity
• High clock-to-center frequency ratio accuracy
• Pin-compatible with industry standard MF10

Applications

• Replacing active RC filters with reduced form factors
• Audio processing and communication systems
• Instrumentation and medical telemetry equipment

Procurement Notes

Verify component authenticity through authorized channels. Confirm RoHS compliance status via official documentation. Check for 'Not Recommended for New Designs' status before finalizing procurement plans. Ensure proper ESD handling protocols are followed during storage and assembly.

Selection Notes

Select this component when replacing legacy MF10 designs requiring higher performance. Verify that the required center frequency and Q factor fall within the specified f0 × Q range. Ensure the external clock source meets the duty cycle requirements for optimal settling time.

Part Context

This part belongs to the LMF100 family of switched capacitor filters. It is fabricated using TI’s LMCMOS process. The device serves as an alternative to integrated continuous-time filters, offering higher accuracy and tunability compared to traditional active RC implementations.

Replacement Considerations

The LMF100CCN/NOPB is pin-compatible with the MF10. However, verify specific electrical differences such as supply current and offset voltages. Note that the LMF100 does not support the current limiting mode found in some older variants.