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NE25139 - DUAL-GATE GaAS MESFET

General Description

The NE251 is a dual gate GaAs FET designed to provide flexibility in its application as a mixer, AGC amplifier, or low noise amplifier.

As an example, by shorting the second gate to the source, higher gain can be realized than with single gate MESFETs.

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Full PDF Text Transcription for NE25139 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for NE25139. For precise diagrams, and layout, please refer to the original PDF.

GENERAL PURPOSE DUAL-GATE GaAS MESFET NE25139 Power DISCONTINU Gain,GPSE (dB) D Noise Figure, NF (dB) FEATURES • SUITABLE FOR USE AS RF AMPLIFIER IN UHF TUNER • LOW CRSS:...

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) FEATURES • SUITABLE FOR USE AS RF AMPLIFIER IN UHF TUNER • LOW CRSS: 0.02 pF (TYP) • HIGH GPS: 20 dB (TYP) AT 900 MHz • LOW NF: 1.1 dB TYP AT 900 MHz • LG1 = 1.0 µm, LG2 = 1.5 µm, WG = 400 µm • ION IMPLANTATION • AVAILABLE IN TAPE & REEL OR BULK DESCRIPTION The NE251 is a dual gate GaAs FET designed to provide flexibility in its application as a mixer, AGC amplifier, or low noise amplifier. As an example, by shorting the second gate to the source, higher gain can be realized than with single gate MESFETs. This device is available in a mini-mold (surface mount) package. POWER GAIN AND NOISE FIGURE vs. DRAIN TO SOURCE VOLT

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