ROHM contributes to high-precision control of industrial equipment by releasing a new OP Amp product capable of amplifying sensor signals with high precision without being affected by temperature changes.

ROHM announced on the 19th that it has developed the 'LMR1002F-LB' zero-drift OP Amp for industrial and consumer electronics, which reduces input offset voltage and input offset voltage temperature drift to a very small level.

As an OP Amp capable of amplifying the output signals of sensors mounted in various measuring instruments with high precision, it is ideal for current measurement applications such as power control inverters, as well as for temperature, pressure, flow rate, and gas detection.

The new product is ROHM's first zero-drift OP Amp using the chopper method.

In the case of the existing low-offset OP Amp, the input offset voltage is up to 150 µV, whereas the new product has reduced it by 94% to a maximum of 9 µV.

It does not require peripheral components or software for adjusting the input offset voltage, contributing to reduced design effort and costs.

In addition, the input offset voltage temperature drift is a maximum of 0.05 μV/°C in the operating temperature range of -40°C to +125°C, which is the lowest among ROHM's OP Amps.

It can accurately amplify measured sensor signals without being affected by environmental changes such as temperature, allowing for industrial equipment operating within factories, etc. It contributes to high-precision control.

The power supply voltage range is wide from 2.7V to 5.5V, and it is equipped with Rail-to-Rail input/output, making it suitable for a wide range of industrial equipment applications.

Mass production of the new product began in November 2023 with a production capacity of 1 million units per month (sample price 1,100 yen/unit, excluding tax).

The production bases are ROHM Hamamatsu Co., Ltd. (Hamamatsu) for the front-end process and ROHM Electronics Philippines, Inc. (Philippines) for the back-end process.

Online sales have also begun, and it is available for purchase on online component distribution sites such as Chip 1 Stop and CoreStaff.

A ROHM official stated, “Going forward, ROHM will continue to further enhance the performance of zero-drift OP Amps and expand its lineup. In addition, we will continuously pursue the high-performance enhancement of OP Amps required by the automotive and industrial equipment markets, such as low noise, low offset, low power consumption, and expanded power supply voltage ranges, thereby contributing to the solution of societal challenges through high-precision application control.”