MAX2371, MAX2373 LNAs With Step Attenuator And VGA

The MAX2371 MAX2373 wideband low-noise Amplifier (LNA) ICs are designed for direct conversion receiver (DCR) or very low intermediate frequency (VLIF) receiver applications. They contain single-channel, single-ended LNAs with switchable Attenuator and Automatic gain control (AGC) intended as a low-noise gain stage. These devices provide high gain-control range (typically 60dB) at Radio frequency (RF) with excellent noise and reverse isolation characteristics.
The MAX2371 MAX2373 CAN work over the frequency range from 100MHz to 1GHz. In practice, only a narrow band is needed in each application, so different matching circuits CAN be applied. The devices are dynamically configured through the Digital/Analog control pins to select either maximum gain and low noise figure or power-saving mode. In addition, the MAX2371 MAX2373 feature high/low-current modes, high/low attenuation modes, linearly controlled gain states, and shutdown mode.
By Maxim Integrated Products