Rutronik Expands Precision Operational Amplifier Portfolio

As automotive, industrial, and embedded electronic systems continue integrating higher-density sensing and control functions, demand is increasing for analog components capable of fast and accurate signal processing under limited power conditions. In this context, Rutronik expanded its analog semiconductor portfolio with ROHM’s TLRx728 and BD728x CMOS operational amplifier series for precision signal processing applications.

Analog signal accuracy for modern embedded systems
The new portfolio addition includes 17 operational amplifier devices within the TLRx728 and BD728x families. The amplifiers are designed for applications including sensor signal amplification, current sensing, motor control, and power supply monitoring across automotive electronics, industrial automation systems, and consumer devices.

ROHM developed the amplifier series to address signal accuracy and response-speed requirements in increasingly complex electronic systems where minimizing signal delay and offset errors is critical for system performance.

The TLRx728 series provides a typical input offset voltage of 150 µV, while the BD728x series delivers 1.6 mV typical input offset voltage. Both series support a noise voltage density of 12 nV/√Hz at 1 kHz and a slew rate of 10 V/µs, enabling fast signal transitions and low-noise analog conditioning in embedded control systems.

Rail-to-rail operation and flexible integration
The operational amplifiers support rail-to-rail input and output operation, allowing the full supply voltage range to be utilized. This characteristic is particularly relevant in low-voltage electronic systems where maximizing dynamic range is important for signal fidelity and measurement accuracy.

The devices are available in single-channel, dual-channel, and quad-channel configurations, with multiple package options intended to support varying PCB layouts and space-constrained electronic designs.

The amplifier families are intended for use in current detection circuits, industrial automation equipment, motor drive systems, sensor interfaces, and power management electronics where compact analog signal chains require low-noise and high-speed operation.

Broad application coverage across industries
The TLRx728 and BD728x series were designed as general-purpose high-performance analog components rather than application-specific devices. The combination of low offset voltage, high slew rate, rail-to-rail capability, and flexible packaging allows the amplifiers to support multiple embedded system architectures across automotive, industrial, and consumer electronics markets.

Edited by Aishwarya Mambet, Induportals Editor, with AI assistance.

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