LTC1060CSW#PBF

Overview

The LTC1060CSW#PBF is a universal dual filter building block manufactured by Analog Devices Inc. It consists of two high-performance switched-capacitor filters housed in a 20-lead plastic SO Wide package. The device operates with supply voltages ranging from ±2.37V to ±8V, supporting center frequencies up to 30kHz at ±5V supplies. Key electrical specifications include a maximum clock frequency of 1.5MHz, a power supply current of 12mA typical at ±5V, and a crosstalk isolation of 70dB. The component guarantees offset voltages and clock-to-center frequency accuracy over temperature, enabling the realization of various second-order filter functions such as lowpass, bandpass, highpass, notch, and allpass configurations.

Feature Summary

• Dual switched-capacitor architecture allows cascading for fourth-order biquadratic functions
• TTL and CMOS compatible clock inputs with level shift accommodation
• Pinout compatibility with MF10 standard active filters
• Low temperature coefficient for Q and center frequency stability

Applications

• Telecom signal processing filters
• Tracking filter implementations
• High Q bandpass and notch filter circuits
• Single 5V medium frequency filter designs

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence before procurement. Confirm the SW package designation matches the required surface mount footprint dimensions. Ensure the operating temperature range aligns with the -40°C to +85°C specification for the C grade variant. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity.

Selection Notes

Select this component when a dual filter topology is required within a single integrated circuit. The device supports both single and dual supply operations, offering flexibility for various voltage rails. Consider the clock frequency limitations relative to the desired center frequency and Q factor. Verify that the external resistor count meets the design constraints for the target filter function.

Part Context

This component belongs to the LTC1060 series of universal dual filter building blocks. It is designed using Linear Technology’s enhanced LTCMOS silicon gate process. The series includes variants with different temperature grades and package options, such as ceramic DIP and plastic PDIP. The CSW#PBF specifically denotes the commercial temperature range and wide SOIC packaging.

Replacement Considerations

The datasheet notes pinout compatibility with the MF10. Designers may consider direct pin-compatible replacements if available from other manufacturers, though electrical characteristics may differ. Verify that any substitute maintains the required switched-capacitor functionality and supply voltage ranges.