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QMLV-qualified dual amplifier eliminates 1/F noise in satellite apps

Santa Clara, Calif.—National Semiconductor Corp. announced the first dual amplifier in its new family of precision operational amplifiers QMLV-qualified for space-level applications.

The LMP2012WGLQMLV dual operational amplifier is suitable 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.

The device is radiation tested to 50K rad (Si) and displays common-mode rejection ratio (CMRR ) and power supply rejection ratio (PSRR ) ratings of 90-dB over the full space temperature range.

Operating from a supply voltage of 2.7V to 5V, the LMP2012WGLQMLV is designed to provide superior performance in transducer amplifiers, high-gain configurations, A/D converter buffer amplifiers and D/A converter current-to-voltage conversion applications.

The LMP2012WGLQMLV offers low input offset voltage of 60 microvolts over the extended temperature range of -55°C to 125°C, 4V/microsecond of slew rate and a wide gain-bandwidth of 3 MHz for accurate signal amplification. Other key specifications include input-referred voltage noise of 35 nV/sqrt Hz and open-loop gain greater than 100 dB.

Pricing: National's High-Reliability Division does not publicly provide unit pricing for their specialized devices.
Availability: The LMP2012WGLQMLV is available now in a 10-pin ceramic SOIC package. It is space-grade qualified to MIL-STD-38535 QML level V and can be purchased as the standard military drawing (SMD) 5962L0620601VZA.

To download a datasheet or radiation report, click here.

National Semiconductor Corp., 1-408-721-5000, www.national.com

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