LTC1560-1CS8#TRPBF

Overview

The LTC1560-1CS8#TRPBF is a 5th-order, continuous-time, lowpass elliptic filter in an 8-lead SOIC package. It features pin-selectable cutoff frequencies of 1MHz or 500kHz. The device operates on ±5V supplies with a typical power supply current of 29mA, reducing to 1mA in shutdown mode. Key electrical parameters include a signal-to-noise ratio of 75dB, passband ripple of -0.3dB at 1MHz, and stopband attenuation exceeding 60dB. Total output noise is typically 350mVRMS at 1MHz cutoff.

Feature Summary

• Pin-selectable cutoff frequency configuration for 1MHz or 500kHz operation
• Elliptic transfer function optimized for antialiasing selectivity and transient response
• Integrated shutdown mode for significant power reduction
• Low noise and low distortion performance without external components

Applications

• Antialiasing filters
• Smoothing or reconstruction filters
• Communication filters

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the 'C' grade designation corresponds to the commercial temperature range of 0°C to 70°C. Ensure compatibility with the required ±5V supply rails and check for any obsolescence notices from Analog Devices prior to final procurement decisions.

Selection Notes

Select this component for applications requiring a compact, high-frequency elliptic filter solution. The pin-selectable cutoff allows flexibility between 500kHz and 1MHz bands. Consider the 29mA quiescent current and ensure adequate thermal management within the SO-8 package. Verify that the input impedance and output drive capabilities meet the system requirements without additional buffering.

Part Context

The LTC1560-1 belongs to Analog Devices' family of continuous-time active filters. This specific part number represents the commercial grade version packaged in a narrow SOIC-8 footprint. It is designed to replace discrete LC solutions in high-frequency signal processing chains where size and component count are critical constraints.

Replacement Considerations

The LTC1560-1CG is the lead-free equivalent of the CS8 variant. For higher bandwidth needs, the LTC1562 offers a quad universal filter architecture. Single-supply alternatives may require level shifting circuits due to the dual-supply design of the LTC1560-1.