Understanding operational amplifier parameters and accuracy measurements

Watch the webinar recording to learn about the Zero-Drift advantage: ST's all-new family of precision operational amplifiers providing unmatched accuracy and low power consumption.

Sensors in today’s world are used extensively to measure weight, read temperature, identify VOCs, control speed, and more. Although we live in an increasingly digital world, many sensors today continue to operate in the analog domain with most of them providing an extremely small signal that needs to be amplified.

Operational amplifiers (op amps) are the primary link between these analog sensors and the digital world. This session will provide an introduction to op amp parameters and explore the theoretical foundations of precision in these devices. You’ll learn the fundamentals of the four underlying parameters affecting precision and their practical impact on measurement accuracy, and receive an update on ST's newest precision op amps.

Topics Covered:

• Operational amplifier basics
• The key op amp parameters affecting precision
  • V_io – input offset voltage
  • CMRR – Common Mode Rejection Ratio
  • I_ib – Input bias current
  • Noise
• Other key op amp parameters
• Zero-Drift vs. standard precision amplifiers - pros and cons
• ST operational amplifier product line and 2019 featured products

Speaker

Jeff Halio is a Product Marketing Engineer at STMicroelectronics. Jeff has over 20 years of field applications experience in design and semiconductor sales. Over the course of his career, he has toggled between digital and analog electronics. Jeff strives for a balanced skill set that allows him to tackle designs at a system level. In his spare time, he can be found at Gillette Stadium, fine-tuning his tailgating and grilling techniques, and cheering on The Revs. Jeff earned his BS in Electrical Engineering from Tufts University.

 

About ST operational amplifiers

STMicroelectronics offers a wide analog portfolio including high-performance amplifiers and comparators dedicated to the challenging industrial, automotive and consumer markets. The product range is developed for various needs such as precision, low consumption, high speed, package form factor, audio and supply range, or cost-optimized bills of material.

The range of products allows easy and fast integration of analog products inside signal conditioning, monitoring and control solutions. ST’s op amps enhance the signal chain by being the perfect companion chips for microcontrollers and analog sensors.