Low-side current sense amplifier offers high accuracy and bandwidth
The TSC1801 from STMicroelectronics provides guaranteed low measurement error, enabling designers to build power or battery management systems without elaborate compensation algorithms.
The TSC1801 is a low-side current sense amplifier which enables designers to produce accurate current measurements with a simple and low-cost analog circuit.
Low-side current sensing, which is widely used in power management, motor control, battery monitoring, and other types of circuit, is a simple, cost-effective method for current measurement. The circuit requires few additional components, and because the measurement has a ground reference, it is highly immune to noise and EMI.
When using the TSC1801 for low-side current measurement, designers benefit from high accuracy and bi-directional operation. Specified at 25°C, gain error is guaranteed to be 0.1% or less, and the maximum offset voltage is ±200µV. Total output error is a maximum of 0.5%.
The device is supplied in a 6-lead SOT23 package with a footprint of 3mm x 3mm.