LTC1060CSW

Overview

The LTC1060CSW is a universal dual filter building block manufactured by Analog Devices Inc. It integrates two high-performance switched-capacitor filters within a single 20-lead plastic SO Wide package. The device supports supply voltages ranging from ±2.37V to ±8V, enabling operation with low power consumption of approximately 12mW at ±2.5V. It achieves center frequencies up to 30kHz with ±5V supplies and offers a center frequency Q product up to 1.6MHz. Key electrical specifications include guaranteed clock-to-center frequency accuracy of ±0.8% for the standard grade, DC offset voltages typically between 21mV and 68mV depending on configuration, and crosstalk performance of 70dB. The component operates reliably across an ambient temperature range of -40°C to +85°C.

Feature Summary

• Dual integrated switched-capacitor filter blocks allowing cascading for higher-order functions
• Tunable center frequency controlled by external clock signals or resistor ratios
• Compatible with TTL and CMOS clock input levels via dedicated level shift pin
• Pinout compatible with MF10 for direct replacement in existing designs

Applications

• Single 5V medium frequency filter circuits
• High Q and high dynamic range bandpass and notch filters
• Tracking filters requiring precise frequency response control
• Telecom filter applications utilizing classical configurations like Butterworth or Chebyshev

Procurement Notes

Verify the specific suffix CSW corresponds to the 20-lead plastic SO Wide package when sourcing replacements. Confirm that the standard grade (LTC1060) meets the required clock-to-center frequency accuracy of ±0.8%, as the A-grade variant offers tighter tolerances. Ensure the design accounts for the operating temperature range limits of -40°C to +85°C for this specific package type.

Selection Notes

Select the LTC1060CSW when a dual filter architecture is needed to construct complex biquadratic functions using minimal external components. Consider the ±2.37V minimum supply requirement for low-voltage applications. Evaluate the trade-off between clock frequency and Q accuracy, noting that higher Q values may require lower clock frequencies to maintain specified performance metrics.

Part Context

This component belongs to the LTC1060 series of universal dual filter building blocks. It is part of Analog Devices' portfolio of switched-capacitor active filters designed for precision signal processing. The device utilizes enhanced LTCMOS silicon gate process technology to achieve low offsets and high dynamic range characteristics suitable for analog signal conditioning tasks.

Replacement Considerations

The LTC1060CSW is pinout compatible with the MF10. Designers replacing legacy MF10 units should verify that the switched-capacitor nature of the LTC1060 aligns with the system's clocking infrastructure and noise requirements.