LTC1164ACSW#PBF

Overview

The LTC1164ACSW#PBF is a low-power, low-noise quad universal filter building block manufactured by Analog Devices. It integrates four independent switched-capacitor filter sections within a single 24-pin SOIC package. The device supports clock frequencies ranging from 1 kHz to 20 kHz, enabling precise frequency tuning via an external clock signal. With a maximum Fo/Fclk ratio of 100:1 and a minimum ratio of 50:1, it offers flexible configuration for various filter topologies. This component is designed for applications requiring high accuracy and minimal power consumption in signal processing environments.

Feature Summary

• Integrates four independent universal filter building blocks for versatile signal conditioning
• Operates with low power consumption suitable for battery-powered or energy-efficient systems
• Features low noise characteristics to maintain signal integrity in sensitive applications
• Supports clock-tunable operation allowing dynamic adjustment of filter cutoff frequencies

Applications

• Precision instrumentation signal filtering
• Medical equipment data acquisition front-ends
• Industrial process control system noise reduction
• Communication channel selection circuits

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliant packaging when sourcing. Confirm that the AC grade meets the required temperature range specifications for your application environment. Ensure the 24-SOIC package dimensions align with your PCB footprint requirements. Cross-reference the manufacturer's latest datasheet to confirm current availability status and any potential obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component when multiple independent filter stages are needed within a compact form factor. Consider the clock frequency limitations and ensure the external clock source can provide stable timing across the operating temperature range. Evaluate the power supply voltage requirements against available system rails. Verify that the switched-capacitor architecture does not introduce unacceptable aliasing effects for the target signal bandwidth.

Part Context

This part belongs to the LTC1164 family of universal filter building blocks, which provides configurable analog filtering solutions. Unlike fixed-function filters, these devices allow designers to implement various filter responses using external capacitors. The AC variant specifies performance characteristics over an extended commercial temperature range. It serves as a foundational component for designing custom analog signal processing chains without discrete active components.

Replacement Considerations

• LTC1164CSW#PBF

FAQ

What determines the cutoff frequency of the integrated filters?

The cutoff frequency is determined by the ratio of the filter's internal operating frequency to the external clock frequency provided to the CLK pin.

How many independent filter sections are contained in this package?

The LTC1164ACSW#PBF contains four independent universal filter building blocks within a single package.