SHUNT
Current-measuring shunt
A current-measuring shunt produces a documented voltage drop corresponding to current through a resistive element.
SLD / Schematic
Symbols · CSA
Current-sense amplifier
Amplifies a voltage associated with a current-sensing shunt using the selected measurement-input arrangement.
Schematic · CSA
What it represents
Amplifies a voltage associated with a current-sensing shunt using the selected measurement-input arrangement.
On a schematic, identify the shunt polarity, input common-mode reference and gain definition and trace the current-related output and ADC or protection circuit. Keep the component tag and signal/reference names consistent across the control drawing, terminal schedule and device documentation.
A current-sense amplifier measures a shunt voltage; it does not replace the shunt or establish an isolated current-transformer connection.
Terminal letters describe electrical roles, not package pin numbers. Check the selected public datasheet for the actual pin assignment, polarity and any internally connected terminals before completing the drawing.
How to read it
- Identify the shunt polarity, input common-mode reference and gain definition.
- Trace the current-related output and ADC or protection circuit.
Information to show or reference
- Label the shunt polarity, input common-mode reference and gain definition.
- Cross-reference the current-related output and ADC or protection circuit.
- Add the selected device or circuit documentation revision, power/reference connections and project signal convention.
A distinction that matters
A current-sense amplifier measures a shunt voltage; it does not replace the shunt or establish an isolated current-transformer connection.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
AD8418 — shunt-current sensing
Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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