Log Amplifiers


The NJM2232A is high precision FM IF IC with log amplifier, designed to be used for handy type wireless apparatus.

This 50dB Detector Log Video Amplifier operates in the 500 MHz to 18.0 GHz frequency range and is offered in a small, 2.2” x 1.5” x 0.4” housing. Planar diode detectors and integrated video circuitry provide high speed performance and outstanding reliability. The log slope of this DLVA is 50mV/dB and has a log linearity error of less than ±0.5dB. The logging range is -40 to +5dBm with a maximum rise time of 20nsec, maximum settling time of 45nsec and a recovery time of 150nsec typical. Additional information can be found on the available outline drawing (link below).

Microsemi-RFIS manufactures a wide variety of Detector Log Video Amplifiers (DLVAs), Extended Range Detector Log Video Amplifiers (ERDLVAs), and Successive Detection Log Video Amplifiers (SDLVAs). These products are made possible by our recent acquisition of ALC Microwave.

This successive detection log video amplifier is ideal for applications involving ECM systems, power measurement and control circuits, military and space, DF radar systems, EW, ELINT, and IFM receivers, and more.

This successive detection log video amplifier operates in the 8-18 GHz frequency range. Its housing is hermetically sealed, ruggedized, and measures in at only 1.2"L x 0.85"W x 0.4"H.

The Ultra-Miniature series of Logarithmic Amplifiers provide broadband performance and superb linearity over a wide temperature range. The UMLA range is robustly constructed in lightweight aluminium alloy housings and designed to withstand harsh mechanical environments.

These successive detection log video amplifiers cover the 1-20 GHz frequency range and are ideal for applications involving military and space, broadband test and measurement, ECM systems, power measurement and control circuits, DF radar systems, and EW, ELINT, and IFM receivers.

The MAX4000/MAX4001/MAX4002 low-cost, low-power logarithmic amplifiers are designed to control RF power amplifiers (PA) operating in the 0.1GHz to 2.5GHz frequency range. A typical dynamic range of 45dB makes this family of log amps useful in a variety of wireless applications including cellular handset PA control, transmitter power measurement, and RSSI for terminal devices.