Texas Instruments Unveils Industry-First Functional Isolation Modulators for Precision Motor Control in Compact Robotics

On March 27, Texas Instruments (TI) introduced the industry’s first functional isolation modulators, designed to enhance precision in motor control for compact robotic designs. The newly launched AMC0106M05, AMC0136, and AMC0106M25 isolation modulators offer improved accuracy and higher resolution, ranging from 12 to 14 effective number of bits (ENOB). These features enable precise and reliable phase current sensing and DC voltage measurement.

Part of TI’s portfolio of isolated analog-to-digital converters (ADCs), these new modulators come in compact, leadless packages. They help designers achieve smooth torque operation and refined motor control while reducing both the size and cost of low-voltage (<60V) robotic designs.

Engineers today are tasked with creating more intelligent robots capable of performing intricate tasks. Electrical isolation modulators empower robotic engineers to achieve precise motor control and system protection within smaller, more complex designs. This level of precision allows robots to handle delicate tasks, such as threading a needle or assembling small nuts and bolts.

Furthermore, the new modulators feature a compact footprint—measuring only 3.5 mm x 2.7 mm—requiring 50% less PCB space compared to competing reinforced isolation solutions. By minimizing the size, designers have additional room to integrate features that support precise control and reliable operation in compact robotic applications.

“These modulators from TI enable designers to enhance the accuracy and productivity of robots in emerging applications, from factory floors to surgical rooms,” said Karthik Vasanth, Vice President and General Manager of Data Converters and Clocks at TI. “For example, while humanoid robots were previously limited to simple tasks, our new functional isolation modulators now allow them to perform more dexterous and precise operations.”