LTC1063CSW#PBF

Overview

The LTC1063CSW#PBF is a monolithic, clock-tunable, 5th-order Butterworth lowpass filter in a 16-lead SO Wide package. It provides DC accuracy with a typical output offset of 1mV and over 12-bit precision. The cutoff frequency is controlled by an internal or external clock with a fixed 100:1 ratio, supporting frequencies up to 5MHz. Key electrical parameters include a maximum cutoff frequency of 50kHz, wideband noise of 95µVRMS, and a typical CMRR of 80dB. It operates from ±2.375V to ±8V supplies.

Feature Summary

• Clock-tunable cutoff frequency using internal oscillator or external signal
• High DC accuracy with minimal output offset drift
• Low clock feedthrough and wideband noise characteristics
• Cascadable architecture for steeper roll-off requirements

Applications

• Anti-Aliasing Filters
• Strain Gauge Amplifiers
• Digital Voltmeters
• Audio Processing

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance when sourcing. Confirm the SW package designation matches the required 16-lead plastic small outline footprint. Ensure the component source is authorized to guarantee authenticity and traceability for critical analog applications.

Selection Notes

Select this part for applications requiring precise Butterworth filtering without external discrete components. Consider the LTC1065 if linear phase response is preferred over the Butterworth characteristic. Verify that the available clock frequency range supports the desired cutoff frequency via the 100:1 ratio.

Part Context

This component belongs to the LTC1063 family of switched-capacitor filters. It is functionally similar to the LTC1062 but offers superior DC accuracy and clock tunability. The CSW variant specifically denotes the surface-mount wide SOIC package option within the broader product line.

Replacement Considerations

The N8 package is noted as obsolete; consider alternative sources for DIP versions. For linear phase requirements, the LTC1065 serves as the functional equivalent with Bessel characteristics.