LTC1562IG-2#TRPBF

Overview

The LTC1562IG-2#TRPBF is a low noise, low distortion continuous time filter optimized for center frequencies between 20kHz and 300kHz. It contains four independent second-order filter blocks that can be cascaded to form higher-order filters without requiring an external clock. The device features rail-to-rail inputs and outputs, resistor-programmable center frequency (fO), Q factor, and gain, and supports various response types including lowpass, bandpass, highpass, notch, and elliptic. It operates on a total supply voltage ranging from 4.75V to 10.5V.

Feature Summary

• Continuous-time architecture eliminates the need for external clocks or digital signal processors
• Four independent second-order universal filter sections allow flexible configuration of complex filter responses
• Rail-to-rail input and output capabilities maximize dynamic range and signal swing
• Integrated zero-power shutdown mode reduces current consumption when inactive

Applications

• Antialiasing and reconstruction filters in high-resolution data acquisition systems
• Data communications and equalizer circuits requiring precise frequency shaping
• Dual or I-and-Q channel processing using two matched fourth-order filters within one package
• Replacing bulky LC filter modules in compact surface-mount designs

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging upon ordering. Confirm the IG variant meets the required industrial temperature range specifications for your application environment. Ensure the design accounts for the 20-lead SSOP physical dimensions and thermal characteristics during PCB layout.

Selection Notes

Select this component when applications require center frequencies up to 300kHz with minimal distortion. Compare against the standard LTC1562 if lower frequency optimization around 100kHz is sufficient. Consider the internal precision components which reduce the need for external capacitors and resistors compared to discrete active filter designs.

Part Context

This part belongs to the LTC1562 family of operational filters manufactured by Analog Devices Inc. It serves as a higher-frequency variant designed specifically for applications demanding operation up to 300kHz. The device integrates precision internal resistors and capacitors to simplify circuit design while maintaining high performance metrics.

Replacement Considerations

The LTC1562CG-2 is a pin-compatible alternative available in commercial temperature grades. Verify that any substitute maintains the same 20-lead SSOP footprint and electrical characteristics regarding supply voltage and shutdown logic thresholds.