LTC1067IS#PBF

Overview

The LTC1067IS#PBF is a dual, rail-to-rail, very low noise universal switched-capacitor filter building block housed in a 16-lead SSOP package. It operates from a single 3V to –5V supply and contains two identical second-order sections. The center frequency is tuned by an external clock with a nominal ratio of 100:1. Key electrical parameters include a center frequency range of 0.001 to 20 kHz, a typical power supply current of 4.5 mA at 4.75V, and a dynamic range exceeding 80 dB on a 3.3V supply. The device supports multiple operating modes for various filter functions.

Feature Summary

• Dual second-order switched-capacitor building blocks with rail-to-rail input and output operation
• Clock-tunable center frequency with customizable ratios via external resistors
• Double-sampled architecture that places aliasing components at twice the clock frequency
• Supports notch, bandpass, highpass, lowpass, and allpass filter configurations

Applications

• Notch filters
• Narrowband bandpass filters
• Tone detection systems
• Noise reduction applications

Procurement Notes

Verify the specific suffix IS#PBF against the manufacturer's official documentation to confirm the industrial temperature range and lead-free packaging status. Ensure the ordering information matches the exact part number required for your bill of materials to avoid compatibility issues with design specifications.

Selection Notes

Select this component when a dual-channel, low-noise switched-capacitor filter is required within the 0.001 to 20 kHz range. Consider the 100:1 clock-to-center frequency ratio and the 16-lead SSOP package constraints. Evaluate the power supply requirements, as the device supports both single and dual supply configurations up to 12V total.

Part Context

This component belongs to the LTC1067 family of universal filter building blocks. It shares architectural similarities with the LTC1067-50 but differs in its clock-to-center frequency ratio and power consumption characteristics. The IS variant specifically denotes the industrial temperature grade within the broader product line.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with alternative devices such as the LTC1067-50 based on specific clock ratio and power requirements.