Precision and High Input Linearity into a Single High-Performance Device Offered by TI


Achieve true precision with the industry’s first zero-drift, zero-crossover operational amplifier

Continuing to set the standard for precision amplifiers, Texas Instruments (TI) on Feb. 7, 2017, introduced the first operational amplifier (op amp) to offer both zero-drift and zero-crossover technology. The OPA388 op amp maintains high precision across the entire input range for a variety of industrial applications, including test and measurement, medical and safety equipment, and high-resolution data-acquisition systems. For more information, visit www.ti.com/opa388-pr.

The unique architecture of the OPA388 produces an industry-leading combination of ultra-high input linearity and precision. TI’s zero-drift technology eliminates temperature drift and flicker noise to attain the highest DC precision and dynamic error correction, while its zero-crossover topology eliminates offset errors caused by common-mode limitations to achieve linear output and true rail-to-rail input operation.

Key features and benefits of the OPA388 op amp

  • Delivers true precision with ultra-high input linearity:The device’s zero-crossover topology eliminates the input offset transition region of traditional complementary metal-oxide semiconductor (CMOS) op amps, assuring maximum linearity and minimal distortion across the entire common-mode input range.
  • Provides high DC precision: TI’s zero-drift technology delivers a low maximum offset voltage of 5 µV, a typical offset voltage drift of 0.005 μV/°C and a maximum input bias current of 700 pA over the extended industrial temperature range of -40°C to 125°C. This eliminates the need for costly overtemperature calibration and increases DC precision.
  • Supports wide-bandwidth operation: With a 10-MHz gain bandwidth product (GBW), the OPA388 enables high gain configurations and makes it possible to acquire a wide range of signal types and frequencies to support equipment from precision weigh scales to heart-rate monitors.
  • Maintains low distortion for high performance: The ultra-low total harmonic distortion of       -132 dBc and voltage noise of 7 nV/√Hz help produce a high-resolution signal chain for specialized applications such as programmable logic controllers, precision field transmitters and motion-control equipment.
  • Reduces complexity and cost: Merging zero-drift and zero-crossover technology reduce signal-chain complexity and external component count, allowing designers to minimize board space and bill of materials (BOM) cost.

Tools and support to jump-start design

TI offers a range of support tools for designers using the OPA388, including a reference design that demonstrates how to use the precision op amp to eliminate crossover nonlinearity in digital-to-analog converters. The reference design uses the DAC8830 precision data converter and the REF5050 voltage reference, which combine to create an accurate DC calibration system for high-precision applications used in wireless infrastructure and test and measurement.

Package, availability, and pricing

The OPA388 is available now through the TI store and authorized distributors. It is priced at US$0.98 in 1,000-unit quantities and comes in a 4.9-mm-by-3.9-mm small-outline integrated circuit (SOIC) package.

Learn more about TI’s amplifier portfolio

  • View the OPA388 op ampdata sheet.
  • Download a PSPICE or TINA-TI™ software modelto simulate the OPA388.
  • Search for answers and get help with your design in the TI E2E™ Community Precision Amplifiers forum.

You may also like...

10 Responses

  1. Thank you for any other wonderful article. Where else may just anybody get that type of info in such
    an ideal method of writing? I’ve a presentation next week, and I’m
    on the search for such information.

  2. Thank you for any other informative blog. The place else could I am getting that type of information written in such
    a perfect approach? I’ve a venture that I’m simply now operating on, and I
    have been on the look out for such information.

  3. Thanks for every other informative site. The place else may just
    I get that type of information written in such a perfect
    method? I have a mission that I’m just now working on,
    and I’ve been at the glance out for such information.

  4. gmail login says:

    You’re so cool! I don’t suppose I’ve read anything like this before.
    So great to find somebody with unique thoughts on this subject.
    Really.. many thanks for starting this up. This web site is something
    that’s needed on the internet, someone with a bit of originality!

  5. fake gps apk says:

    hello there and thank you for your information – I’ve certainly picked
    up something new from right here. I did however expertise
    several technical points using this website, as I experienced to reload the site lots of times previous to
    I could get it to load correctly. I had been wondering if your web
    host is OK? Not that I am complaining, but slow loading
    instances times will sometimes affect your placement
    in google and can damage your quality score if ads and marketing
    with Adwords. Anyway I am adding this RSS to my email
    and could look out for a lot more of your respective intriguing content.
    Ensure that you update this again soon.

  6. It’s a pity you don’t have a donate button! I’d certainly donate to this fantastic blog!
    I guess for now i’ll settle for bookmarking and
    adding your RSS feed to my Google account. I look forward to brand new updates and will talk about this blog with my Facebook group.
    Chat soon!

  7. Your method of telling the whole thing in this paragraph is actually nice, every one be able to effortlessly understand it, Thanks a
    lot.

  8. Your style is really unique in comparison to other people I have read
    stuff from. I appreciate you for posting when you have the opportunity,
    Guess I’ll just bookmark this site.

  9. Very quickly this site will be famous among all blogging visitors, due to it’s good content

  10. I just want to tell you that I am new to weblog and really enjoyed your web blog. Likely I’m planning to bookmark your blog . You absolutely come with wonderful stories. Thanks a bunch for sharing your webpage.

Leave a Reply

Your email address will not be published. Required fields are marked *