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SANTA CLARA, CA — ROHM Semi conductor has introduced the new LMR1002F-LB zero- drift operational amplifier (op amp). It is designed for industrial and consumer elec- tronics devices and minimizes both input off- set voltage and input offset voltage tempera- ture drift. Capable of accurately amplifying output signals from sensors installed in vari- ous measurement devices, this new op amp is ideal for current sensing applications such as power control inverters and temperature/pres- sure/flow detectors. As automotive and industrial equipment
become more sophisticated and application control requirements are more precise, envi- ronmental sensors are increasingly being used to quantify temperature, pressure, and gas concentrations such as carbon dioxide to foster a sustainable society. However, sensor signals are so small that amplification is nec-
www.us -
tech.com
essary, and if a general op amp with 1 mV offset voltage is used to amplify the sensor signal by a factor of 1,000, for example, the offset voltage also increases by this amount, resulting in a voltage error of 1V (1,000 mV) in the signal output. At the same time, the input offset voltage temperature drift, which
March, 2024 Zero-Drift Operational Amplifier from ROHM
varies according to temperature and time, is difficult to compensate for. In response, ROHM has developed a
zero-drift op amp by leveraging proprietary analog circuit technology cultivated over many years. The LMR1002F-LB is ROHM’s first zero-drift op amp using the chopper method. In contrast to conventional low-off- set op amps featuring a typical input offset voltage of 150 µV, ROHM’s new product lim- its input offset voltage to just 9 µV (94% lower). This eliminates the need for peripher- al components or software to adjust the input offset voltage, reducing both design person- hours and costs. In addition, the input offset voltage tem-
LMR1002F-LB zero-drift operational amplifier.
You have a problem, Datest has the solution.
perature drift is just 0.05 µV/°C in the oper- ating temperature range — the lowest among ROHM’s op amps. This, coupled with a wide supply voltage range of 2.7 to 5.5V and rail-
to-rail input/output, make it ideal for a variety of industrial
applications. Contact: ROHM Semicon -
ductor USA, 2323 Owen Street,
Santa Clara, CA 95054 % 408-720-1900 E-mail:
jpontious@rohmsemiconductor.co m Web:
www.rohmsemiconductor.com
Excelitas
System WALTHAM, MA — Excelitas Technologies Corp. has launched its OmniCure® LS200 UV LED radiometry and calibration sys- tem for the precise measurement and calibration in UV LED spot curing processes.
Technologies: New UV LED Radiometry & Calibration
Datest now features fast, high-energy microfocus CT services for anyone who wants to know why something broke, stopped working, won’t start working, or never worked.
OK, so it’s bad news, but it’s news. You can work with that.
LS200 UV LED radiometry and calibration system.
The LS200 brings a new
level of versatility and extended measurement range to UV cur- ing applications. Consistent and reliable management of Omni - Cure UV LED curing system light output accuracy assures compliance with manufacturing processes. The LS200 sensor calibra- tion is NRC traceable to provide
47810 Westinghouse Drive • Fremont, CA 94539 Phone: 510-490-4600 • Fax: 510-490-4111 Email:
Info@datest.com • Website:
www.datest.com
additional assurance of accuracy. Contact: Excelitas
Technologies Corp., 200 West
Street, Waltham, MA 02451 % 781-996-5925 E-mail:
scott.orr@excelitas.com Web:
www.excelitas.com
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