comment on this article

Chopper op amps feature rail to rail input and output

The TSZ182 dual precision op amp from STMicroelectronics combines low and temperature stable input-offset voltage with a 3MHz gain-bandwidth, rail to rail inputs and outputs, and 2 x 2mm DFN8 or Mini-SO8 package options.

The chopper-stabilised TSZ182 is said to enable superior precision in instruments like body signal monitors, blood-glucose meters, industrial sensors, factory automation, and low side current sensing.

According to the company, the offset voltage of 25µV at 25°C enables high measurement resolution and accuracy without external trimming components. Offset drift less than 100nV/°C maintains accuracy over a temperature range and saves periodic auto-recalibration thereby simplifying design and enhancing convenience for end users.

Operating from a 2.2 to 5.5V supply and providing rail to rail inputs and outputs, the TSZ182 is claimed to maximise use of available dynamic range.

The gain-bandwidth of 3MHz is said to ensure consistent frequency response over a wide range, and the maximum operating current of just 1mA at 5V helps maximise runtime of battery powered devices.

Operating temperatures range from -40 to 125°C, which enables use in harsh outdoor or industrial environments. Automotive-qualified variants (TSZ1821IYST) will also be available next month for precision sensor-signal conditioning in equipment ranging from simple wiper modules or climate controls to autonomous driving systems.

Peggy Lee

Comment on this article

This material is protected by MA Business copyright See Terms and Conditions. One-off usage is permitted but bulk copying is not. For multiple copies contact the sales team.

What you think about this article:

Add your comments


Your comments/feedback may be edited prior to publishing. Not all entries will be published.
Please view our Terms and Conditions before leaving a comment.

Related Articles

Licensing agreement

Melexis has announced that it has entered into an exclusive license agreement ...

AI in healthcare

Whether being used to discover links between genetic codes, power surgical ...

1200V aSiC MOSFETs

Alpha and Omega Semiconductor has announced the release of the AEC-Q101 ...

Get to market faster

A quick look at using Vicor's PFM and AIM in VIA packaging for your AC to Point ...

Digital consciousness

​Would you consider uploading your brain to the cloud if it meant you could ...