The AVR DB family builds upon the low-power performance of the AVR® core with a world-class selection of Core Independent Peripherals (CIPs) and a fully loaded Intelligent Analog portfolio, giving you the freedom to design tomorrow’s solutions today. Featuring three on-chip operational amplifiers (op amps), this family is unparalleled in its signal conditioning capabilities. With its Multi-Voltage I/O (MVIO), the AVR DB is a perfect companion microcontroller (MCU) in complex designs with multiple power domains.

This family of MCUs leverages on-board CIPs and a 5V operation mode for increased noise immunity while also reducing system latency by making use of the powerful Event System and Configurable Custom Logic (CCL) peripherals. The AVR-DB family’s MVIO allows true level-shifted bi-directional communication with devices on a different power domain. You can use the AVR DB family for real-time control functions in industrial control, home appliance, automotive, Internet of Things (IoT) and other applications.

Win an Evaluation Kit!

Win a AVR128DB48 Curiosity Nano Evaluation Kit! Register below for your chance to win one of these kits. Click Here for terms and conditions.


  • Using high-precision architectures enables superior DC performance, regardless of operating conditions
  • Low noise and additional EMI filtering on the inputs provide additional protection in electrically noisy environments
  • Small packages, such as leadless DFNs, are ideal for space-constrained designs
  • A wide operating temperature range of –40°C to +125°C provides a robust solution even at extreme temperatures

Microchip Instrumentation Amplifier with mCAL Technology

The MCP6N11 and MCP6V2x Wheatstone Bridge Reference Design demonstrates the performance of Microchip's MCP6N11 instrumentation amplifier (INA) and a traditional three op amp INA using Microchip's MCP6V26 and MCP6V27 auto-zeroed op amps. The input signal comes from an RTD temperature sensor in a Wheatstone bridge. Real world interference is added to the bridge's output, to provide realistic performance comparisons. Data is gathered and displayed on a PC, for ease of use. The USB PIC® microcontroller and included Graphical User Interface (GUI) provides the means to configure the board and collect sample data.

Instrumentation Amplifiers