LTC6605IDJC-10#PBF

Overview

The LTC6605IDJC-10#PBF is a dual-channel, matched, low-noise, low-distortion active filter with integrated amplifiers. It features two independent second-order low-pass filters with a -3dB cutoff frequency of 10MHz. The device operates on a single supply voltage ranging from 2.7V to 5.25V and is housed in a compact 22-lead DFN package (3mm x 6mm). Internal laser-trimmed resistors and capacitors ensure precise gain and phase matching between channels. It supports tri-state bias control for power management and accepts both single-ended and differential inputs.

Feature Summary

• Dual-channel architecture with internally laser-trimmed components for high gain and phase matching
• Low noise density and low distortion characteristics suitable for high dynamic range systems
• Tri-state BIAS pin allows selection between shutdown, medium power, and full power modes
• Flexible input configuration supporting both single-ended and differential signal sources

Applications

• Anti-aliasing filtering for broadband wireless ADCs
• Buffered drivers for DACs in zero-IF direct conversion receivers
• Single-ended to differential conversion stages
• Smooth filtering applications in precision data acquisition systems

Procurement Notes

Verify the specific suffix IDJC-10#PBF against the manufacturer's current datasheet to confirm the 10MHz cutoff frequency variant. Check for End-of-Life (EOL) notifications or discontinuance alerts, as availability may be restricted. Ensure the DFN-22-EP package footprint matches the target PCB design requirements before ordering.

Selection Notes

Select this component when precise channel-to-channel matching is required for differential signal paths. The 10MHz cutoff frequency is fixed by internal trimming; verify this aligns with the system bandwidth needs. Consider the power consumption trade-offs associated with the different BIAS states if battery life is a critical constraint in the application design.

Part Context

This part belongs to the LTC6605 family of matched filter amplifiers. Variants within the series differ primarily by their cutoff frequencies (e.g., 7MHz, 10MHz, 14MHz) and temperature grades. The IDJC suffix typically denotes an industrial temperature range version compared to commercial variants.

Replacement Considerations

Direct substitutes include other LTC6605 variants with different cutoff frequencies such as LTC6605IDJC-7#PBF or LTC6605IDJC-14#PBF, provided the frequency response adjustment is acceptable. Cross-family replacements require careful evaluation of noise, distortion, and pin compatibility.