LTC1063CSW#TRPBF

Overview

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

Feature Summary

• Clock-tunable cutoff frequency using internal oscillator or external clock source
• DC accurate performance with minimal output offset drift
• Cascadable architecture for achieving faster roll-off characteristics

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates lead-free tape and reel packaging. Confirm the SW package designation matches the required 16-lead plastic small outline dimensions. Ensure the component meets RoHS compliance standards before integration into final assemblies.

Selection Notes

Select this component when a 5th order Butterworth response is required without external passive components. Use the internal RC self-clocking scheme for frequencies below 500kHz to minimize board space. Consider the LTC1065 if a linear phase Bessel response is preferred over the Butterworth characteristic.

Part Context

This part belongs to the LTC1063 family of monolithic switched-capacitor filters. It serves as a direct replacement for discrete active filter designs requiring precise tuning. The device integrates the clock generation and filtering stages into a single IC.

Replacement Considerations

The N8 PDIP package is listed as obsolete; consider the SW package or alternative sources for the same die. For linear phase requirements, substitute with the LTC1065.