LTC1563-3CGN#TRPBF

Overview

The LTC1563-3CGN#TRPBF is a fourth-order active RC lowpass filter from Analog Devices, featuring a unity-gain Bessel response. It operates on a single supply voltage ranging from 2.7V to 11V or dual supplies up to ±5V. The device supports cutoff frequencies between 256Hz and 256kHz in high-speed mode, with a typical accuracy of ±2%. Key electrical parameters include a maximum DC offset of 3mV, power supply current of 14mA at 3V (high-speed), and rail-to-rail input/output capabilities. It is housed in a 16-lead SSOP package.

Feature Summary

• Provides a unity-gain Bessel transfer function for linear phase filtering applications
• Features rail-to-rail input and output stages for maximum dynamic range
• Includes a low-power mode that reduces supply current by an order of magnitude
• Supports shutdown mode via the EN pin for near-zero power consumption

Applications

• Antialiasing filters for data acquisition systems
• Smoothing or reconstruction filters in signal processing chains
• Linear phase filtering for data communication interfaces
• Phase locked loops requiring specific phase characteristics

Procurement Notes

Verify the complete part number includes the #TRPBF suffix to confirm tape and reel packaging and lead-free compliance. Ensure the 'C' grade designation matches the required commercial temperature range specifications for your application environment.

Selection Notes

Select this component when a Bessel response is required for minimal time-domain distortion. Verify that the desired cutoff frequency falls within the supported range for the chosen operating mode. Consider the Low Power mode if system energy efficiency is critical for lower frequency operations.

Part Context

This component belongs to the LTC1563 family of active filters. The -3 suffix specifically denotes the Bessel response variant, distinguishing it from the -2 Butterworth version. It shares the same physical footprint and pinout as other members of the series, facilitating design flexibility.

Replacement Considerations

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