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STMicroelectronics offers a comprehensive portfolio of current sense amplifiers designed for high accuracy, robustness, and wide operating conditions in automotive, industrial, and telecom applications.

High-voltage, bidirectional current sense amplifiers

Able to sense very low drop voltages as low as 10 mV, our TSC2010 (20 V/V Gain), TSC2011 (60 V/V) and TSC2012 (100 V/V) high-voltage bidirectional current sense amplifiers can sense the current thanks to a shunt resistor over a wide range of common mode voltages from –20 to + 70 V, regardless of the supply voltage. The TSC2010H, TSC2011H and TSC2012H are also available with extended temperature range (-40 to 150 °C); the STEVAL-AETKT1V2 kit can be used to evaluate the devices.

The TSC2020, TSC2021, and TSC2022 enables precision current sensing via a shunt resistor across a wide common-mode voltage range up to 100 V. These devices feature fixed gain options of 20 V/V, 50 V/V, and 100 V/V, supporting bidirectional sensing with very low drop voltages. AEC-Q100 qualified and available in SO-8 and MiniSO-8 packages, they are ideal for current monitoring, overcurrent protection, and feedback loops. The STEVAL-AETK41V1 evaluation kit facilitates design integration.

Zero-drift current sense amplifiers

Based on a zero-drift architecture that delivers high performance for precision current sensing, the TSC210 / TSC211 / TSC212 / TSC213 / TSC214 / TSC215 feature exceptional precision and low offset while offering different gain. They can operate over a broad supply voltage range, from 2.7 to 26 V, and support temperatures ranging from -40 to 125 °C, making them ideal for industrial and automotive applications.  The STEVAL-AETKT2V1 evaluation board supports engineers in their design.

Current sense amplifiers with integrated comparator and reference

The TSC200, TSC201, and TSC202 provide analog voltage output with integrated open-drain comparators featuring output latches and a 0.6 V internal voltage reference. These AEC-Q100 qualified amplifiers support common-mode voltages from -20 V to +80 V and offer gains of 20 V/V, 50 V/V, and 100 V/V respectively, making them well-suited for overcurrent protection and system monitoring. To support developers in their designs is available the STEVAL-AETKT3V1 evaluation kit.

The TSC240 is a high-side and low-side bidirectional zero-drift current sense amplifier designed for accurate current measurement with enhanced PWM noise rejection. It supports sensing current through a shunt resistor across a wide common-mode voltage range from –4 V to +100 V, independent of the supply voltage. Featuring a fixed gain of 20 V/V, the TSC240 detects very low voltage drops while minimizing measurement errors.

Operating over a broad supply voltage range of 2.7 to 5.5 V and an industrial temperature range of –40 to +125 °C, this amplifier is ideal for precision current measurement, overcurrent protection, current monitoring, and feedback control applications. Its key features include excellent DC common-mode rejection ratio (132 dB), low gain error (0.20% max), minimal offset voltage (±20 µV max), and low quiescent current (2.4 mA max). Available in SO8 and TSSOP8 packages, the TSC240 is well-suited for motor controls, solenoid and valve controls, power management, industrial process control, and telecom equipment.

The TSC1801 is a precision low-side current measurement amplifier designed to sense voltage drops across shunt resistors at low common-mode voltages.

With a fixed gain of 20 V/V, it ensures accurate and high-bandwidth current sensing for applications like low-side motor control and power management in Solar Powered Systems, HEV and EV.