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Low Noise, Wideband, Low CurrentMonolithic Amplifier

Product Overview
The CMA-183L+ is a low current, wideband gain block that operates up to 20 GHz fabricated using highly
reliable GaAs HBT process. This Darlington pair amplifier delivers excellent gain flatness, good return loss,
low current with acceptable P1dB and OIP3 across a wide bandwidth without the need of external match-
ing network. It has highly repeatable performance from lot to lot and it is packaged in an LTCC hermetic
package utilizing fully automated and highly reliable manufacturing processes. CMA-series amplifiers are
capable of meeting MIL requirements for gross leak, fine leak, thermal shock, vibration, acceleration, me-
chanical shock, and HTOL. The tests can be performed if requested.
Feature Advantages
Super Wideband: DC to 18 GHz,
usable to 20 GHz
General purpose wideband amplifier is suitable for various applications.
Low Current, 20 mA typ. Low current consumption is ideal for use in amplifier chain.
Excellent gain flatness:
±0.7 dB to 10 GHz
±2.1 dB to 18 GHz
Minimize the need for gain slope comensation to achieve flat gain
No external matching component required
CMA-183L+ provides typical input & output return loss of 15 dB up to 20 GHz with- out
the need for any external matching components.
Ceramic, hermetic package
Highly reliable hermetic package provides predictable and repeatable performance in
military applications including ground, air, and ship requirements, and small size 2.25 x
2.25 mm
Very small size
2.25 x 2.25 x 1.1mm
Small size fits into tiny space on motherboard of PCB saving cost


Low Noise, Wideband, Low Current • Monolithic Amplifier • Ultra wideband, 0.5 to 12 GHz • Excellent noise figure, 1.8 dB at 12 GHz • Low Current, 30mA • Usable up to 18 GHz

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