LTC1164CSW#TRPBF

Overview

The LTC1164CSW#TRPBF is a low power, low noise quad universal filter building block manufactured using enhanced LTCMOS silicon gate process. It integrates four independent second-order switched capacitor filter sections within a single 24-lead plastic SO package (SW). Each section typically consumes 850µA of supply current and operates from dual power supplies ranging from ±2.37V to ±8V. The center frequency for each section is programmable via an external clock signal, supporting clock-to-center frequency ratios of 50:1 or 100:1. This architecture allows the realization of up to eighth-order filters with various classical responses such as Butterworth, Cauer, Bessel, and Chebyshev.

Feature Summary

• Integrates four independent second-order switched capacitor filter building blocks in a compact package
• Supports multiple filter topologies including lowpass, highpass, bandpass, and notch configurations
• Features low power consumption without compromising noise performance or distortion characteristics
• Allows flexible tuning of center frequency through external clock signals with standard ratios

Applications

• Antialiasing filters for data acquisition systems
• Telecommunications channel selection and filtering
• Spectral analysis equipment requiring precise frequency response
• Loop filters in phase-locked loops and control systems

Procurement Notes

Verify that the component matches the specific SW package variant and ordering suffix. Confirm that the manufacturer designation aligns with Analog Devices Inc. specifications. Ensure the datasheet version corresponds to the required electrical characteristics. Check for any specific handling requirements associated with the switched capacitor technology during installation.

Selection Notes

Select this component when designing applications requiring multiple filter stages within a limited board area. Consider the available operating modes, specifically Mode 1 and Mode 3, based on the desired speed and Q accuracy requirements. Evaluate the power supply constraints to ensure compatibility with the ±2.37V to ±8V range. Assess the need for external resistors to set gain and center frequency parameters accurately.

Part Context

This device belongs to the LTC1164 family of universal filter building blocks. It serves as a versatile alternative to discrete filter implementations by providing multiple filter sections in one integrated circuit. The CSW suffix indicates the specific plastic small outline package variant suitable for surface mount assembly techniques.

Replacement Considerations

Consider the LTC1164ACSW#PBF for improved accuracy specifications. Evaluate the obsolete N package variants if through-hole mounting is required. Consult manufacturer documentation for customized versions with internal thin film resistors.