Datasheet Analog Devices ADL5521

400 MHz to 4000 MHz
Low Noise Amplifier
ADL5521 Data Sheet FUNCTIONAL BLOCK DIAGRAM Operation from 400 MHz to 4000 MHz
Noise figure of 0.8 dB at 900 MHz
Requires few external components
Integrated active bias control circuit
Integrated dc blocking capacitors
Adjustable bias for low power applications
Single-supply operation from 3 V to 5 V
Gain of 20.8 dB at 900 MHz
OIP3 of 37.0 dBm at 900 MHz
P1dB of 21.8 dBm at 900 MHz
Small footprint LFCSP
Pin-compatible version with 21.5 dB gain available VBIAS 1 ACTIVE
BIAS 7 RFOUT RFIN 2
NIC 3
NIC 4 8 VPOS 6 NIC ADL5521 NIC = NO INTERNAL CONNECTION.
DO NOT CONNECT TO THIS PIN. 5 NIC
06828-001 FEATURES Figure 1. GENERAL DESCRIPTION
The ADL5521 is a high performance GaAs pHEMT low noise
amplifier. It provides high gain and low noise figure for singledownconversion IF sampling receiver architectures as well as
direct-downconversion receivers. The ADL5521 is easy to tune, requiring only a few external
components. The device can support operation from 3 V to 5 V, …