LTC1569IS8-6#TR

Overview

The LTC1569IS8-6#TR is a 10th order lowpass filter featuring linear phase and a root raised cosine amplitude response. It operates from single supplies of 3V to 5V or dual supplies including -5V, with a maximum total supply voltage of 11V. The device draws 3mA at 3V and supports cutoff frequencies up to 64kHz using a single external resistor. Key electrical parameters include a maximum DC offset of 5mV, 82dB signal-to-noise ratio at 5V, and 80dB CMRR at DC. It is housed in an SO-8 package and rated for industrial temperatures from –40°C to 85°C.

Feature Summary

• Provides linear phase and root raised cosine response suitable for pulse shaping
• Configurable via a single external resistor without requiring an external clock
• Features low power modes with up to 40% current reduction in divide-by-4 and divide-by-16 settings
• Supports differential or single-ended inputs with high common-mode rejection

Applications

• Data communication filters for 3V operation
• Linear phase and phase matched filters for I/Q signal processing
• Pin programmable cutoff frequency lowpass filters

Procurement Notes

Verify the suffix #TR indicates tape and reel packaging when sourcing. Confirm the IS8 designation corresponds to the industrial temperature range of –40°C to 85°C. Ensure the component matches the specific 64kHz cutoff configuration if required by the design. Check for RoHS compliance status as indicated in official documentation.

Selection Notes

Select this part for applications requiring high selectivity and linear phase in a compact SO-8 package. Use the internal oscillator mode for simplified designs by programming the cutoff frequency with one resistor. Consider the divide-by settings to optimize power consumption versus cutoff frequency requirements. Ensure the supply voltage aligns with the desired dynamic range and noise performance specifications.

Part Context

This component belongs to the LTC1569 family of sampled data filters. It shares the core architecture with variants like the LTC1569C and LTC1569I, differing primarily in temperature rating and packaging options. The IS8 variant specifically targets industrial environments while maintaining the same functional characteristics as other members of the series.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.