LTC1064-3CN#PBF

Overview

The LTC1064-3CN#PBF is a monolithic 8th order lowpass Bessel filter providing linear phase response. It operates from ±2.37V to ±8V power supplies with a maximum cutoff frequency of 95kHz. The clock-to-cutoff frequency ratio is selectable via Pin 10: 75:1 (Pin 10 at V+), 150:1 (Pin 10 at V–), or 120:1 (Pin 10 at GND). It features 60µVRMS total wideband noise and 0.03% THD or better. The device requires no external components, utilizes TTL or CMOS clock inputs, and is housed in a 14-pin PDIP package.

Feature Summary

• Monolithic 8th order lowpass Bessel filter architecture
• Linear phase response over the entire passband
• Clock-programmable cutoff frequency up to 95kHz
• No external components required for operation

Applications

• Antialiasing filters
• Smoothing filters
• Tracking high frequency lowpass filters

Procurement Notes

Verify the specific ordering suffix CN#PBF against the manufacturer's current documentation to confirm the package type and lead-free status. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the datasheet revision date to validate all electrical specifications before finalizing procurement orders.

Selection Notes

Select this component when an 8th order Bessel response with linear phase is required without external passive components. Verify that the available clock signal can support the desired cutoff frequency ratios of 75:1, 120:1, or 150:1. Confirm that the supply voltage range of ±2.37V to ±8V aligns with the system design constraints.

Part Context

This part belongs to the LTC1064 series of clock-sweepable active filters. It is pin-compatible with other variants in the family, such as the LTC1064-1, LTC1064-2, and LTC1064-4. These devices share similar architectural characteristics but differ in their specific filter responses and cutoff frequency capabilities.

Replacement Considerations

The LTC1064-3CN is pin-compatible with the LTC1064-1CN, LTC1064-2CN, and LTC1064-4CN. Verify that the alternative variant provides the necessary filter response characteristics for the specific application requirements.