ROHM Unveils TLR1901GXZ Ultra-Compact Op-Amp
ROHM has announced the release of its latest CMOS operational amplifier, the TLR1901GXZ, which achieves exceptionally low operating circuit current. Designed for use in size-constrained applications, the device is targeted at handheld measurement instruments, wearable electronics, and indoor motion detection systems.
For eeNews Europe readers interested in op-amp technology, this development highlights important advances in low-power, miniaturized analog components that directly address the growing demand for energy-efficient sensing and measurement solutions across consumer, industrial, and IoT applications.
Meeting Demands for Miniaturization and Low Power
The trend toward increasingly sophisticated control in battery-driven devices has placed new emphasis on compact, power-saving signal amplification. As sensors for temperature, flow, pressure, and vibration proliferate, the amplifiers driving them face similar challenges in accuracy, size, and efficiency.
ROHM suggests the TLR1901GXZ, which leverages the company’s proprietary Nano Energy circuit technology, process improvements, and advanced packaging. Packaged in a wafer-level chip-scale package (WLCSP) measuring under 1 mm² with a 0.35-mm ball pitch, the device achieves a typical operating current of just 160 nA. According to ROHM, this ultra-low current consumption contributes directly to extended battery life while enabling high-density mounting in extremely limited board space.
TLR1901GXZ: Accuracy and Flexibility
In addition to its efficiency and size advantages, the TLR1901GXZ delivers a maximum input offset voltage of 0.55 mV, approximately 45% lower than comparable solutions. A temperature drift of only 7 µV/°C ensures stable, high-accuracy performance across its operating range, making the device particularly well-suited for precision measurement tasks.
ROHM also highlights the device’s compatibility with its own ultra-compact resistor lineups, such as the MCR004 (0402 metric / 01005 inch) and MCR006 (0603 metric / 0201 inch), which allow for straightforward gain adjustment. Environmentally friendly versions, including the lead-free MCR004E, further support sustainable product designs. For developers evaluating new solutions, ROHM is offering adapter boards featuring SSOP5 ICs.
Looking Ahead
ROHM emphasized in a release its ongoing commitment to advancing miniaturization, power efficiency, and noise reduction in future op amp designs. The company notes that reducing offset and expanding supply voltage ranges will be key steps toward enabling increasingly precise application control.
“Going forward, ROHM will continue to pursue further power savings in op amps by advancing both miniaturization and original ultra-low power technologies,” the company stated in its announcement. “At the same time, we are committed to improving device performance by reducing noise and offset, expanding power supply voltage ranges, and contributing to solving social issues through more precise application control.”
ROHM’s TLR1901GXZ seems to position the company as a strong competitor in the realm of ultra-low-power analog design. It offers developers a toolset well aligned with the requirements of many next-generation portable, wearable, and sensor-driven systems.
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