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By Jens Nickel
STMicroelectronics has introduced a new dual operational amplifier aimed at high-precision applications across a wide supply range. The TSB192 devices combine low offset voltage with extended operating voltage, addressing a gap between traditional precision op amps and higher-voltage designs.
For eeNews Europe readers working in industrial, automotive, and instrumentation design, the combination of precision and flexibility could simplify analog front-end architectures. It also points to continued innovation in signal-conditioning components for mixed-signal systems.
The TSB192 dual op amps operate from 4V to 36V, a range that is typically difficult to achieve without sacrificing precision. ST claims an offset voltage of 20µV, with a maximum of 30µV across the full temperature range, and a temperature drift of just 100nV/°C. These figures are usually associated with low-voltage precision amplifiers, making the wider supply capability notable.
The devices also feature rail-to-rail outputs, enabling designers to maximize dynamic range, while drawing up to 1.9mA per channel—helpful for extending battery life in portable equipment. By reducing offset and drift, the amplifiers minimize the need for compensation in signal-conditioning networks, simplifying system design.
Target applications include industrial and automotive systems, as well as healthcare and consumer electronics, where stable and repeatable analog performance is critical.
ST positions the TSB192 for use in analog integrators and measurement circuits, including temperature sensing, medical instrumentation, electronic scales, and industrial test equipment. The devices offer an 8MHz gain-bandwidth, 5V/µs slew rate, and low input noise of 11nV/√Hz, supporting improved frequency response and reduced distortion.
This makes them suitable for amplifying signals from transducers, bridges, and strain gauges, as well as for use in precision active filters. The operating temperature range of -40°C to 125°C further supports deployment in automotive environments, while ESD protection up to 4kV HBM enhances robustness.
The TSB192 is already in production in SO-8 and MiniSO-8 packages, with pricing starting at $1.06 in 1,000-piece volumes. ST also plans to release an automotive-grade version later in 2026, expanding its suitability for safety-critical and high-reliability applications.
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