TI Intros 20MHz, High-Precision CMOS Amplifier Utilizing Proprietary e-trim Technology

Dec 10, 2004

Texas Instruments Incorporated today announced a high-precision, high-speed 12V CMOS operational amplifier from the company's Burr-Brown product line that utilizes 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.

"The OPA727 delivers excellent offset voltage (150uV max) 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/rtHz noise and 0.0003% harmonic distortion make it ideal for driving fast, 16-bit analog-to-digital converters such as TI's ADS8342 - a 16-bit, 250kSPS, 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, maximizing 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 4V to 12V or +/-2V to +/-6V supply range.

Available Today

The OPA727 (single version) and OPA728 (single with shutdown) are packaged in MSOP-8 and 3x3mm DFN-8. The OPA2727 (dual) is packaged in 3x3mm DFN-8 and SO-8. These versions are available today from TI and its authorized distributors. A quad version, the OPA4727, will be available in 1Q 2005. All are specified for operation from -40C to +125C.

The OPA727 and OPA728 are priced from $1.45 in 1,000 piece quantities. The OPA2727 pricing is $2.20 in 1,000 piece quantities. All prices are suggested resale.

Explore further: Baidu profit up 34 percent as mobile service grows

add to favorites email to friend print save as pdf

Related Stories

New study refines biological evolution model

28 minutes ago

Models for the evolution of life are now being developed to try and clarify the long term dynamics of an evolving system of species. Specifically, a recent model proposed by Petri Kärenlampi from the University ...

Verizon launches rewards program with tracking

58 minutes ago

Verizon Wireless is launching a nationwide loyalty program this week for its 100-million-plus subscribers. There's a twist, though: To earn points for every dollar spent, subscribers must consent to have their movements tracked ...

As numbers of gray seals rise, so do conflicts

20 hours ago

(AP)—Decades after gray seals were all but wiped out in New England waters, the population has rebounded so much that some frustrated residents are calling for a controlled hunt.

Recommended for you

Report: China to declare Qualcomm a monopoly

4 hours ago

(AP)—Chinese regulators have concluded Qualcomm Inc., one of the biggest makers of chips used in mobile devices, has a monopoly, a government newspaper reported Friday.

Hoverbike drone project for air transport takes off

15 hours ago

What happens when you cross a helicopter with a motorbike? The crew at Malloy Aeronautics has been focused on a viable answer and has launched a crowdfunding campaign to support its Hoverbike project, "The ...

Study shows role of media in sharing life events

16 hours ago

To share is human. And the means to share personal news—good and bad—have exploded over the last decade, particularly social media and texting. But until now, all research about what is known as "social sharing," or the ...

User comments : 0