New 45V Zero-Drift Operational Amplifier for Ultra-High Precision

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Wide operating range and on-chip EMI filtering minimises the increasing influence of high frequency interference

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 Technology Inc. has announced the MCP6V51 zero drift operational amplifier. The new device provides ultra-high precision measurement while minimising the increasing influence of high frequency interference by offering a wide operating range and on-chip electromagnetic inference (EMI) filters.

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. It is ideal for applications such as factory automation, process control and building automation.

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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.

Programmable logic controllers and distributed control systems utilised within industrial automation run on a variety of voltage rails, such as 12V, 24V, 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.

For evaluation, the 8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board (Part # SOIC8EV) is a blank PCB that allows the operation of Microchip Technology’s 8-pin devices to be easily evaluated. Each device pin is connected to a pull-up resistor, a pull-down resistor, an in-line resistor, and a loading capacitor. The PCB pads allow through hole or surface mount connectors to be installed to ease connection to the board. Additional passive component footprints are on the board, to allow simple circuits to be implemented.

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Key Features

  • Maximum offset of ±15 microvolts (µV)
  • Maximum offset drift of ±36 nanovolts per degree Celsius (nV/°C)
  • Wide operating voltage range, from 4.5V to 45V.
  • Self-correcting zero-drift architecture of the MCP6V51 enables ultra-high Direct Current (DC) precision.

Availability

The MCP6V51 is available for sampling and volume production in both 5-lead SOT-23 and 8-lead MSOP packages from authorised worldwide distributor

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