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Microchip unveils sub-microampere op amps

Posted: 30 Apr 2007 ?? ?Print Version ?Bookmark and Share

Keywords:operational amplifiers? sub-microampere op amps? low-power CMOS?

Low-power op amps from Microchip

Microchip Technology Inc. has announced the expansion of its linear product portfolio into the low-power, high-precision arena with the MCP6031, MCP6032, MCP6033 and MCP6034 (MCP603X) op amps.

The new, sub-microampere op amps have a quiescent current of only900nA and a bandwidth of 10kHz, with a maximum voltage offset of just 150?V at 25C. The highly accurate amplifiers are suitable for handheld, portable electronic devices used in the medical, industrial and consumer markets.

Microchip's low-power CMOS technology and implementation of non-volatile memory for in-package trimming, enables the MCP603X amplifiers' extremely low offset. This minimizes error, especially at higher gains. Additionally, with an operating voltage range of 1.8-5.5V, the amplifiers can run off of two 1.5V battery cells under full battery utilization. Their low power consumption extends battery life, and their rail-to-rail I/O structure enables greater dynamic range and better performance across the entire operating-voltage range.

"Microchip continues to leverage its low-power, CMOS technology to provide another family of industry-leading op amps," said Bryan Liddiard, VP of Microchip's analog and interface products division. "The MCP603X devices lead the industry with their combination of low power consumption and low-offset performance, and are expected to open new markets for Microchip in portable instrumentation."

As with all Microchip amplifiers, the MCP603X amplifiers are supported by Microchip's FilterLab filter-design software, which simplifies active-filter design. The FilterLab software provides full schematic diagrams of filter circuits with component values, and displays frequency response. It is available for free from Microchip's Website.

Samples of the MCP603X amplifiers can be ordered today from The MCP6031, MCP6032 and MCP6033 amplifiers are available in 8-pin MSOP and SOIC packages, and the MCP6034 in 14-pin SOIC and TSSOP packages. The devices can be purchased now at

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