LTC6601CUF-2#PBF

Overview

The LTC6601CUF-2#PBF is a low power, low distortion, fully differential second-order active broadband RC filter and driver manufactured by Analog Devices. It operates within a supply voltage range of 2.7V to 5.25V and features pin-configurable cutoff frequencies between 5MHz and 27MHz. The device offers programmable gain from -17dB to +17dB and includes a three-state BIAS pin for adjusting power consumption between high performance, low power (50% reduction), and standby modes. Packaged in a compact 4mm x 4mm 20-lead QFN, it integrates trimmed on-chip resistors and capacitors with typical accuracy of 0.5%, requiring few external components.

Feature Summary

• Pin-configurable filter response and gain settings allow flexible system integration without external passive components.
• Three-state BIAS control enables optimization of power consumption versus performance or complete shutdown.
• Integrated precision trimming of internal resistors and capacitors ensures consistent and repeatable filter characteristics.
• Fully differential architecture provides rail-to-rail output swing and adjustable output common mode voltage.

Applications

• Differential A/D converter driver
• Antialiasing and reconstruction filtering
• Single-ended to differential conversion and amplification

Procurement Notes

Verify the specific suffix 'CUF-2' against official documentation to confirm the commercial temperature grade (0°C to 70°C) and lead-free finish. Confirm package type as 20-lead QFN. Check current availability status as discontinuation notices may apply.

Selection Notes

Select this component when low distortion at high frequencies is prioritized over lowest noise, distinguishing it from the LTC6601-1 variant. Ensure the required cutoff frequency falls within the 5MHz to 27MHz pin-strappable range. Verify that the single-ended input configuration matches the application requirements.

Part Context

This part belongs to the LTC6601 family of active filters. The '-2' designation indicates the version optimized for lowest distortion at high frequencies, whereas the '-1' version is configured for lowest noise. Both variants are pin-compatible and share similar form factors.

Replacement Considerations

LTC6601IUF-2#PBF: Industrial temperature grade (-40°C to 85°C). LTC6601CUF-2#TRPBF: Tape and reel packaging option. LTC6601IUF-2#TRPBF: Industrial grade tape and reel.