Data Sheet

ADL8141

GaAs, pHEMT, MMIC, Low Noise Amplifier, 14 GHz to 24 GHz

Rev. 0

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FEATURES

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Low noise, high gain LNA for Ku and K band

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Frequency range: 14 GHz to 24 GHz

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Low noise figure: 1.4 dB typical at 15 GHz to 22 GHz

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High gain: 29 dB typical at 14 GHz to 15 GHz

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Integrated AC coupling capacitors

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Integrated bias inductor

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Single positive supply: 2 V with IDQ = 25 mA

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RBIAS drain current adjustment pin

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RoHS-compliant, 2 mm × 2 mm, 8-lead LFCSP

APPLICATIONS

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Ku band and K band satellite communications

GENERAL DESCRIPTION

The ADL8141 is a low power consumption, low noise amplifier

that operates from 14 GHz to 24 GHz. Typical gain, noise figure,

and output third-order intercept (OIP3) are 29 dB, 1.4 dB, and 18

dBm, respectively. Typical supply current is 25 mA from a 2 V

supply. OIP3 and output power for 1 dB compression (OP1dB) can

be increased by adjusting a supply-referenced resistor connected

to the RBIAS pin. The RF input and output of the ADL8141 are

internally matched and AC-coupled.

The ADL8141 is fabricated on a gallium arsenide (GaAs), pseu-

domorphic high electron mobility transistor (pHEMT), monolithic

microwave integrated circuit (MMIC) process. The ADL8141 is

housed in a RoHS-compliant, 2 mm × 2 mm, 8-lead LFCSP and is

specified for operation from −40°C to +85°C.

FUNCTIONAL BLOCK DIAGRAM

Figure 1. Functional Block Diagram