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Microchip Introduces MCP6V51 Zero-Drift Operational Amplifier

January 16, 2019

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Microchip introduced the MCP6V51 zero-drift operational amplifier. The new device provides ultra-high-accuracy measurements while minimizing the effects of higher and higher high-frequency interference by providing a wide operating voltage range and on-chip electromagnetic interference (EMI) filters.

The rapid development of wireless features such as Wi-Fi® and Bluetooth-enabled applications is putting more and more high-frequency noise in our living and working environments. To enable designers to deliver better performance while making it easier to manage increasingly complex environments, Microchip Technology Inc. introduced the MCP6V51 zero-drift operational amplifier. The new device provides ultra-high-accuracy measurements while minimizing the effects of higher and higher high-frequency interference by providing a wide operating voltage range and on-chip electromagnetic interference (EMI) filters.

The development of industrial control and factory automation has led to an increasing number of sensors that need to be monitored. The MCP6V51 amplifier is designed to produce accurate and stable data for a variety of sensors. The MCP6V51's self-calibrating zero-drift architecture achieves ultra-high DC (DC) accuracy, achieving a maximum offset voltage of ±15 microvolts (μV) and a maximum offset drift as low as ±36 nanovolts per degree Celsius (nV/°C) . The MCP6V51 is ideal for applications such as factory automation, process control and building automation, and supports an ultra-wide operating voltage range of 4.5V to 45V.


MCP6V51 operational amplifier application circuit diagram

With the increase of wireless sensors and wireless functions, high-frequency interference has become an important factor to consider for sensitive analog measurements. In addition, the EMI filter in the MCP6V51 can shield these unpredictable sources of unwanted interference.

Bryan J. Liddiard, vice president of mixed-signal and linear business at Microchip, said: "People generally think that Microchip is a microcontroller company, but we also have industry-leading simulators to enhance the overall system solution for the industry. Because of the need to combine complex With carrier-stabilized architecture and high-voltage processing technology, these devices have many design and manufacturing challenges. Microchip is a design and manufacturing company that can do well."

Programmable logic controllers and distributed control systems used in industrial automation need to operate on a wide variety of voltage rails, such as 12V, 24V, 36V. The MCP6V51 flexibly supports a variety of supply voltages and allows for power supply transients by supporting operating voltages up to 45V.

Development tools

For evaluation, the 8-pin SOIC/MSOP/TSSOP/DIP evaluation board (part number: SOIC8EV) is a blank board that can be used to easily evaluate the operation of Microchip Technology's 8-pin devices. Pull-up resistors, pull-down resistors, in-line resistors, and load capacitors are connected to each device pin. The board's soldering plate has through holes or allows surface mount connectors to be mounted for easy connection to the evaluation board. There are other passive component spaces on the evaluation board for simple circuitry.

Supply

The MCP6V51 is available now in sample, 5-lead SOT-23 and 8-lead MSOP packages and is in volume production.