ADL5521| Datasheet

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Preliminary Technical Data
FEATURES
Operation from 400 MHz to 4000 MHz Noise figure of 0.8 dB at 900 MHz Including external input match Gain of 20.0 dB at 900 MHz OIP3 of 37.7 dBm at 900 MHz P1dB of 22.0 dBm at 900 MHz Integrated bias control circuit Single supply operation from 3 V to 5 V Operating current of 29 mA at 3 V Small footprint LFCSP package Pin compatible with 21.5 dB gain ADL5523

400 MHz to 4000 MHz Low Noise Amplifier ADL5521
FUNCTIONAL BLOCK DIAGRAM
ACTIVE BIAS

VBIAS 1 RFIN 2 NC 3 NC 4

ADL5521

8 VPOS 7 RFOUT 6 NC 5 NC

Figure 1.

GENERAL DESCRIPTION
The ADL5521 is a high performance GaAs pHEMT low-noise amplifier. It provides high gain and low noise figure for single down-conversion IF sampling receiver architectures as well as direct down conversion receivers. The ADL5521 also has low power consumption at 3 V. The ADL5521 allows optimal noise matching without sacrificing significant gain matching. S11 of better then 6 dB can typically be achieved when matching for optimal noise. The ADL5521 amplifier comes in a compact, thermally enhanced, 3mm x 3mm LFCSP package and operates over the temperature range of -40 C to +85 C. The ADL5523 is a companion part that offers a gain of 21.5 dB gain at 900MHz in a pin compatible package. A fully populated evaluation board is also available.

Rev. PrE
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