MAX2685EEE

RF Mixers Overview

The MAX2685EEE is a low-cost, single-channel RF amplifier and downconverter mixer designed for the 800 MHz to 1 GHz frequency range. It operates on a supply voltage of 2.7 V to 5.5 V with a typical current draw of 8.5 mA. Key electrical specifications include a gain of 15 dB, a noise figure of 1.4 dB, and a P1dB compression point of -18.4 dBm. The output third-order intercept point (OIP3) is -4 dBm. The device dissipates up to 667 mW and functions within a temperature range of -40°C to +85°C. It is housed in a 16-lead QSOP package.

RF Mixers Feature Summary

• Integrates low-noise amplification and downconversion mixing functions into a single silicon component.
• Optimized for cellular band applications with high linearity and low noise characteristics.
• Supports standard surface-mount installation via a compact 16-lead QSOP footprint.

RF Mixers Applications

• Cellular base station receiver front ends
• Wireless communication system signal conditioning
• RF signal downconversion in mobile infrastructure

RF Mixers Procurement Notes

Verify component status carefully as the MAX2685EEE is listed as obsolete by the manufacturer. Current availability may be limited to existing stock or factory special orders through authorized distributors. Confirm lead times and authenticity rigorously when sourcing from secondary markets due to discontinuation. Ensure compatibility with design-in requirements before procurement.

RF Mixers Selection Notes

Select this component for designs requiring integrated LNA and mixer functionality in the 900 MHz ISM/cellular bands. Evaluate the 1.4 dB noise figure and 15 dB gain against system sensitivity requirements. Consider the -4 dBm OIP3 for linearity constraints in crowded spectrum environments. Verify power budget alignment with the 8.5 mA operating current and thermal management needs for the 667 mW dissipation.

RF Mixers Part Context

This part belongs to the MAX2685 series of wireless and RF integrated circuits manufactured by Analog Devices / Maxim Integrated. It serves as a specialized solution for reducing component count in RF transceiver chains. The device complements other Maxim RF products by providing a cost-effective approach to signal acquisition and frequency translation in portable and fixed wireless equipment.

RF Mixers Replacement Considerations

Public confirmed substitute part numbers are not explicitly provided in the source data. The MAX2685EEE+ and MAX2685EEE-T are related variants within the same family. Consult official Analog Devices documentation for qualified replacements or cross-reference guides for discontinued components.

RF Mixers FAQ

What is the specific test frequency for the MAX2685EEE parameters?

The electrical parameters, including gain and noise figure, are typically tested at 880 MHz.

Does the MAX2685EEE support dual-channel operation?

No, the device is specified as a single-channel RF amplifier and downconverter mixer.