Microchip Unveils Industry´s First Operational Amplifiers With On-Chip One-Shot Calibration Circuit
Publication date on this website: Tuesday, May 19, 2009
Company: Microchip Technology
Category: Press Releases
:
Active Components
Summary:
Key Facts:
• World´s only Op Amp with integrated mCal technology, minimises drift over time and temperature
• Low power, high bandwidth with high drive current delivers better performance across entire operation voltage range
• Expands Microchip´s CMOS Op Amp portfolio in to high speed applications
Full Text:
Microchip announces the world´s first and only op-amps to include mCal; an on-chip calibration circuit that calibrates offset voltages at power up using an internal power-on reset detector, or based upon the state of an external pin. The result is a low initial voltage offset and a means to minimise drift over time and temperature, which are extremely important for applications involving instrumentation and sensor conditioning.
The high bandwidth, low power MCP651/2/5 (MCP65x) op amps provide low bias and quiescent currents, high output drive capability and a rail-to-rail output for better performance across the entire operating voltage range. A frequency bandwidth of 50MHz and a rail-to-rail output drive current of up to 95mA make the MCP65x ideal for even the most demanding applications in consumer, industrial and medical markets. The high output drive current, which enables the MCP65x to drive heavy loads, also results in better performance across a wide range of applications, while the rail-to-rail output provides greater dynamic range – even at lower operating voltages – for more accurate performance across the entire operating voltage range.
The new amplifier range expands Microchip´s CMOS op amp portfolio in to higher-speed applications. Examples include microphone preamplifiers, optical detector circuitry and barcode scanners as well as patient monitoring and ultrasound equipment in the medical market.
The accompanying MCP651 Evaluation Board (part # MCP651EV-VOS) is available for $30 from www.microchipdirect.com. It provides a simple means of measuring the MCP651 op amp´s input offset voltage specified in the datasheet, plus changes due to power supply voltage, common-mode voltage, output voltage, input offset-voltage drift over temperature and 1/f noise.
The MCP651 op amp is available in an 8-pin SOIC, the MCP652 is available in an 8-pin SOIC and 3x3mm DFN package, while the MCP655 is available in 10-pin MSOP and 3x3mm DFN packages. More information is available at www.microchip.com/mcp65x
Note: The Microchip name and logo are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. All other trademarks mentioned herein are the property of their respective companies.
Contact:
David Wright, Microchip Technology.
Tel: +44 118 921 5858
E-mail: david.wright@microchip.com
Suzy Kenyon, Napier Partnership.
Tel: +44 1243 531123
E-mail: suzy@napier.co.uk
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