Product category:
Analogue and Mixed Signal ICs
News Release from: Texas Instruments (April 2001-March 2006) | Subject: OPA727
Edited by the Electronicstalk Editorial
Team on 13 December 2004
Novel trimming technique boosts op amp
accuracy
A new high-precision high-speed 12V CMOS operational amplifier uses novel trimming technology that calibrates offset voltage and temperature drift during the final steps of manufacturing.
A new high-precision high-speed 12V CMOS operational amplifier from the Burr-Brown product line uses e-trim - TI's new trimming technology that calibrates offset voltage and temperature drift during the final steps of manufacturing The OPA727 is well suited for applications requiring excellent dynamic characteristics such as active filters, transimpedance amplifiers, audio, test equipment and process control
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
Related stories
Data buffer has dual multiplexer
Texas Instruments has introduced the industry's first 0- to 4-Gbps data buffer/signal conditioner with a dual multiplexer.
Reference design for wireless optical comms
A new technology from Texas Instruments dramatically cuts the cost and complexity of bringing the high-speed datarates of optical networking to end users.
"The OPA727 delivers excellent offset voltage (150uV maximum) and extremely low offset voltage drift (1.5uV/C) through e-trim".
"To correct for offset drift, the op amp is trimmed over temperature", said Frank Haupt, Strategic Marketing Engineer of TI's high-performance amplifier products.
E-trim technology is used to trim the OPA727's offset voltage and offset voltage drift over temperature after packaging.
This significantly improves accuracy compared to traditional laser trimming methods by avoiding parameter shifts that occur during plastic molding.
E-trim brings best-in-class offset and offset drift over temperature, comparable to precision bipolar amplifiers, to low-cost CMOS operational amplifiers.
The OPA727 also provides excellent AC performance.
Its 20MHz bandwidth, 30V/us slew rate, 600ns settling time, 6nV/(rt)Hz noise and 0.0003% harmonic distortion make it ideal for driving fast, 16bit analogue-to-digital convertors such as TI's ADS8342 - a 16bit, 250Ksample/s, four-channel ADC.
The input common-mode range extends to ground for true single-supply operation and output swings to within 150mV of the rails, maximising dynamic range.
The shutdown version (OPA728) reduces the quiescent current to 6uA (typically) and features a digital ground reference pin for easy interface to standard logic levels in dual-supply applications.
The OPA727 and OPA728 are fully specified and tested over the full 4 to 12V or +/-2 to +/-6V supply range.
The OPA727 (single version) and OPA728 (single with shutdown) are packaged in MSOP-8 and 3 x 3mm DFN-8.
The OPA2727 (dual) is packaged in 3 x 3mm DFN-8 and SO-8.
These versions are available today from TI and its authorised distributors.
A quad version, the OPA4727, will be available in Q1 2005.
All are specified for operation from -40 to +125C.
The OPA727 and OPA728 are priced from $1.45 in 1000 piece quantities.
The OPA2727 pricing is $2.20 in 1000 piece quantities.
All prices are suggested resale.
• Texas Instruments (April 2001-March 2006): contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
