NE68018-T1-A

Overview

The NE68018-T1-A is a GaAs MMIC monolithic microwave amplifier manufactured by CEL (Comlinear). It operates within the frequency range of 18.0 to 26.5 GHz, covering the K and Ka bands. The device integrates an on-chip DC blocking capacitor for simplified biasing. It is housed in a compact surface-mount package designed for high-volume production and consistent performance. Key electrical characteristics typically include a small-signal gain of approximately 17 dB, a noise figure around 4.5 dB, and an output power level near +13 dBm at 1dB compression point. The component utilizes a single positive supply voltage, facilitating integration into RF front-end modules.

Feature Summary

• Integrated DC blocking capacitor eliminates external components
• Monolithic construction ensures phase and amplitude stability
• Single positive supply voltage simplifies bias network design
• Surface-mount package optimizes PCB space utilization

Applications

• Point-to-point microwave radio links
• Satellite communication uplink and downlink stages
• Test and measurement equipment signal chains
• Military electronic warfare systems

Procurement Notes

Verify the specific suffix designation against the manufacturer's current datasheet to confirm pinout compatibility and performance tolerances. Ensure that the ordering documentation explicitly references the full part number including the tape and reel specification if automated assembly is required. Cross-reference the RoHS compliance status with the latest environmental declarations provided by the supplier.

Selection Notes

Evaluate the available supply voltage headroom to ensure it aligns with the amplifier's specified operating range. Consider the thermal management requirements of the PCB layout given the power dissipation characteristics of the MMIC. Assess the impedance matching network complexity relative to the target system bandwidth. Verify that the input and output VSWR specifications meet the system's reflection coefficient limits.

Part Context

This component belongs to the family of high-frequency GaAs MMIC amplifiers designed for broadband applications. It serves as a critical active element in systems requiring low noise and moderate power output in the millimeter-wave spectrum. The technology leverages gallium arsenide processes to achieve superior electron mobility compared to silicon-based alternatives at these frequencies.

Replacement Considerations

Consult the manufacturer's official substitution guide for verified equivalent part numbers. Direct replacements must match the pin configuration and electrical parameters precisely. Generic equivalents may require significant circuit redesign due to differences in gain flatness or noise characteristics.