MCP62x and MCP65x, Op Amps with mCal


Microchip's operational amplifiers with an on-chip, digital calibration circuit (mCal Technology) available at Digi-Key

Microchip Technology MCP62x and MCP65x, Op Amps with mCalThe MCP62x and MCP65x families of 20MHz and 50MHz operational amplifiers are fabricated using Microchip Technology's low power CMOS technology. In addition to the mCal Technology, which minimizes input offset voltage, these two families of amplifiers offer high output drive and rail-to-rail output swing.

mCal is an on-board calibration circuit that corrects the input offset error of the amplifier. This circuitry consists of an A/D converter, a reference, and an output DAC that feeds an offset correction factor back into the amplifier. This calibration occurs during power-up or is based on the state of the calibration pin. This calibration circuitry enables low initial offset voltage and a way to minimize drift over time and temperature.


  • Features
  • Applications
  • Benefits
  • Related Parts
  • Buy Now

Features

  • Operating voltage from 2.5V to 5.5V
  • GBWP of 20/50 MHz, typical
  • Rail-to-rail output
    • Greater dynamic range, even at lower operating voltages
    • Better performance across entire operating voltage range
  • High output drive—85/95 mA, typical
    • Capable of driving heavy loads
    • Better performance across a wide range of applications
  • Extended temperature range
    • -40°C to + 125°C
  • Available in single and dual; featuring chip select and mCal Technology

Applications

Consumer
  • Microphone preamplifiers, optical detector circuitry
    • Digital scales
    • Camcorders
    • Refrigerators
    • Gaming consoles
Industrial
  • H-bridge drivers, power-amplifier control loops, sensor amplifier/filtering, driving Analog-to-Digital Converters (ADCs)
    • Barcode scanners
    • Washing machines
    • RF meter reading
    • Mass-flow controllers
Medical
  • Patient monitoring, instrumentation
    • Heart-rate monitor
    • Ultrasound machine
    • MRI & CT scanners

Benefits

  • The mCal feature provides low initial voltage offset upon power-up. In addition, the CAL pin allows the user to re-calibrate the device at any time, thereby reducing offset drift over time and temperature.
  • High output drive and rail-to-rail output swing provides exceptional performance for the most demanding applications that require driving heavy loads.
  • Rail-to-rail output operation provides for greater dynamic range. This is especially critical at lower operating voltages where the signal voltage swing is relatively small.
  • Low initial offset and low drift over time and temperature (via CAL pin)
  • Capable of driving heavy loads
  • Greater dynamic range, even at lower operating voltages

Related Parts

MCP651 Eval Board

The MCP651 evaluation board makes it easy to evaluate the input offset performance and the mCal functionality of this new amplifier family. The kit contains a fully assembled and tested printed circuit board, featuring the MCP651 as well as some supporting circuitry.

The MCP651 evaluation board features the MCP651 single operational amplifier in an 8-pin SOIC package. The input offset voltage of the amplifier is measured, amplified and filtered. It is also available on a test point for easy measurement. The on-demand calibration feature can be easily evaluated by using the on-board push button, which will initiate a calibration routine by toggling the Calibration hardware pin on the MCP651 device. In addition, the Vcal pin, which allows the user to set the common mode at which the calibration routine takes place, is connected to a potentiometer that allows the user to quickly adjust the common mode voltage.


Buy Now

Digi-Key P/N Manufacturer P/N Description
MCP621-E/SN-ND MCP621-E/SN IC OPAMP SGL 2.5V R-R 8-SOIC Datasheet
MCP622-E/SN-ND MCP622-E/SN IC OPAMP DUAL 2.5V R-R 8-SOIC Datasheet
MCP622-E/MF-ND MCP622-E/MF IC OPAMP DUAL 2.5V R-R 8-DFN Datasheet
MCP625-E/UN-ND MCP625-E/UN IC OPAMP DUAL 2.5V R-R 10-MSOP Datasheet
MCP625-E/MF-ND MCP625-E/MF IC OPAMP DUAL 2.5V R-R 10-DFN Datasheet
MCP651-E/SN-ND MCP651-E/SN IC OPAMP 6MA 50MHZ W/MCAL 8-SOIC Datasheet
MCP652-E/SN-ND MCP652-E/SN IC OPAMP 6MA 50MHZ W/MCAL 8-SOIC Datasheet
MCP652-E/MF-ND MCP652-E/MF IC OPAMP 6MA 50MHZ W/MCAL 8-DFN Datasheet
MCP655-E/UN-ND MCP655-E/UN IC OPAMP 6MA 50MHZ W/MCAL 10MSOP Datasheet
MCP655-E/MF-ND MCP655-E/MF IC OPAMP 6MA 50MHZ W/MCAL 10-DFN Datasheet


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