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New 45V, Zero-drift Op-Amp With Ultra-high Precision

Microchip's MCP6V51 offers a wide operating range and on-chip EMI filtering

The rapid expansion of wireless capabilities, such as Wi-Fi®- and Bluetooth-enabled applications, is increasing high-frequency noise in our livable space and work environments. To allow designers to provide improved performance while more easily managing an increasingly difficult environment, Microchip has announced the MCP6V51 zero-drift operational amplifier. The new device provides ultra-high-precision measurement while minimizing the increasing influence of high-frequency interference by offering a wide operating range and on-chip electromagnetic interference (EMI) filters.

Click for Larger Image - New 45V, Zero-drift Op-Amp from Microchip Provides Ultra-high Precision Plus EMI Filtering The growth of industrial control and factory automation has led to an uptick in the number of sensors that need to be monitored, and the MCP6V51 amplifier is designed to provide accurate, stable data from a variety of sensors. The self-correcting zero-drift architecture of the MCP6V51 enables ultra-high Direct Current (DC) precision, providing a maximum offset of ±15 microvolts (µV) and only ±36 nanovolts per degree Celsius (nV/°C) of maximum offset drift. Ideal for applications such as factory automation, process control and building automation, the MCP6V51 also supports an extremely wide operating voltage range, from 4.5V to 45V.

With the proliferation of wireless sensors and capabilities, high-frequency interference within sensitive analog measurement is becoming a critical consideration. The additional on-chip EMI filtering within the MCP6V51 provides protection from these unwanted and unpredictable interference sources.

Click for Larger Image - New 45V, Zero-drift Op-Amp from Microchip Provides Ultra-high Precision Plus EMI Filtering “Microchip is often thought of as a microcontroller company, but we have industry-leading analog to augment our total system solution for the industrial space,” said Bryan J. Liddiard, vice president of Microchip’s mixed-signal and linear business unit. “The combination of a complex chopper-stabilized architecture and a higher-voltage process technology makes these devices challenging from a design and manufacturing standpoint. Microchip is a company that can do it—and do it well.”

Programmable logic controllers and distributed control systems utilized within industrial automation run on a variety of voltage rails, such as 12V, 24V and 36V. The MCP6V51 offers the flexibility to support a wide range of supply voltages and includes overhead to account for supply transients by supporting an operating range up to 45V.

Features of the MCP6V51 Op-Amp include:

  • Zero-Drift architecture
  • Maximum offset of only 15 µV
  • Maximum offset drift of 36 nV/C
  • Wide operating range: 4.5V to 45V
  • No 1/f noise
  • Gain-Bandwidth-Product of 2 MHz
  • Enhanced EMI Rejection

The MCP6V51 is currently available in a SOT-23 or MSOP Package and can be ordered directly from Microchip.

More information on the MCP6V51 zero-drift operational amplifier can be found on the Microchip website at Microchip MCP6V51 product page

Note: The Microchip name and the Microchip 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.

The Microchip website address is www.microchip.com
[Reprinted with kind permission from Microchip Corporation - Release Date, 15th January, 2019]