Citation
(2007), "QMLV-qualified precision amplifier for satellite applications", Aircraft Engineering and Aerospace Technology, Vol. 79 No. 5. https://doi.org/10.1108/aeat.2007.12779ead.007
Publisher
:Emerald Group Publishing Limited
Copyright © 2007, Emerald Group Publishing Limited
QMLV-qualified precision amplifier for satellite applications
QMLV-qualified precision amplifier for satellite applications
National Semiconductor Corporation recently announced the first dual amplifier in its new family of precision operational amplifiers specifically QMLV-qualified for space-level applications. The LMP2012WGLQM LV dual operational amplifier is said to be ideal for satellite applications such as attitude and orbital controls, sun and inertial sensors, gyroscopes, pressure sensors, static earth sensing, bolometers and earth observation systems.
The LMP2012WGLQMLV is a rail- to-rail output operational amplifier that uses patented techniques to measure and continually correct the input offset error voltage, while eliminating the unwanted 1/f voltage and current noise present in traditional amplifiers. This results in a high- performance amplifier that offers unparalleled levels of accuracy and stability over time and temperature. The device is radiation tested to 50K rad (Si) and displays excellent common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR) ratings of 90dB over the full space temperature range. Operating from a supply voltage of 2.7 to 5V, the LMP2012WGLQMLV provides superior performance in transducer amplifiers, high-gain configurations, analogue-to-digital converter (ADC) buffer amplifiers and digital-to-analogue converter (DAC) current-to-voltage conversion applications.
The LMP2012WGLQMLV claims low input offset voltage of 60mV over the extended temperature range of 255 to 125°C, 4V/ms of slew rate and a wide gain-bandwidth of 3MHz for accurate signal amplification. Other key specifications include input-referred voltage noise of 35nV/sqrt Hz and open-loop gain greater than 100dB.
Details available from: National Semiconductor GmbH, Tel: +49 (0) 81 4135 1443, E-mail: solveig.loesch@nsc.com