LTC1064CN#PBF

Updated: 2026-09-09

Overview

The LTC1064CN#PBF is a high-performance active filter IC developed by Linear Technology, now part of Analog Devices. This integrated circuit belongs to the family of precision analog components designed for signal processing applications. It combines multiple filter functions in a single package, offering engineers a compact solution for complex filtering requirements. The device is particularly valued for its excellent frequency response characteristics and low distortion performance. It finds extensive use in professional audio equipment, instrumentation, and communication systems where precise signal conditioning is critical. The 'CN' suffix indicates the commercial temperature range version in a PDIP package, while '#PBF' denotes lead-free (Pb-free) construction.

Structure and Working Principle

The LTC1064CN#PBF integrates multiple switched capacitor filter sections along with associated analog circuitry. This architecture allows for precise control of filter characteristics through external clock signals. The IC implements a state-variable filter topology that can be configured for various filter types including low-pass, high-pass, band-pass, and notch filters. Internally, the device uses switched capacitor techniques to achieve accurate and stable filter responses. The cutoff frequencies are determined by the ratio of an external clock frequency to internal capacitor values, providing excellent temperature stability. This approach eliminates the need for precision external components typically required in conventional active filter designs.

Key Features

The LTC1064CN#PBF offers several distinguishing features that make it valuable for precision analog designs. It provides extremely low total harmonic distortion (typically 0.0025%) and wide dynamic range, making it suitable for high-fidelity audio and measurement applications. The device operates from dual power supplies (±5V to ±7.5V) with low power consumption. Another notable feature is its flexible configuration options. The IC can be cascaded with other filter sections to create higher-order filters or complex filter responses. The switched capacitor design provides excellent parameter matching between channels, ensuring consistent performance across multiple filter stages. These characteristics make the LTC1064CN#PBF particularly useful in applications requiring precise frequency control and minimal signal degradation.

Application Areas

The LTC1064CN#PBF finds application in numerous professional and industrial sectors. In telecommunications, it's used for channel filtering and anti-aliasing in data acquisition systems. Medical equipment manufacturers utilize it in ECG machines and other diagnostic instruments where clean signal acquisition is crucial. Industrial applications include process control systems, vibration analysis equipment, and precision measurement instruments. The audio industry employs this IC in professional equalizers, crossovers, and noise reduction systems. Its ability to maintain performance across temperature variations makes it particularly suitable for military and aerospace applications where reliability under extreme conditions is mandatory.

Maintenance and Precautions

Proper handling and installation are essential for optimal performance of the LTC1064CN#PBF. Being an ESD-sensitive component, it requires appropriate anti-static precautions during handling and soldering. The device should be stored in conductive foam or anti-static packaging when not in use. For circuit implementation, attention should be paid to proper power supply decoupling and grounding practices. The IC's performance can be affected by poor PCB layout, especially regarding the clock signal routing. Designers should follow the manufacturer's recommended layout guidelines to minimize noise and ensure stable operation. Thermal considerations are generally minimal due to the device's low power dissipation characteristics.

B2B Procurement Guide

When procuring LTC1064CN#PBF ICs in bulk, several factors should be considered. Verify the manufacturer's part number and package type to ensure compatibility with your design. Lead times can vary significantly, so planning ahead is advisable, especially for large quantity orders. Quality assurance is critical - source components only from authorized distributors or directly from Analog Devices to avoid counterfeit parts. For cost-sensitive applications, consider alternative package options or newer equivalent parts that might offer better availability. Many distributors offer volume pricing tiers, so consolidating orders can yield significant savings. Always check for the latest RoHS compliance status if environmental regulations apply to your application.