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12

OPA2156

SBOS900 – SEPTEMBER 2018

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Typical Application: Low-Side Current Measurement (continued)

they are standard value resistors that create a 49:1 ratio. Other resistors that create a 49:1 ratio can also be

used. Figure 2 shows the measured transfer function of the circuit shown in Figure 4.

8.2.3 Application Curves

Figure 5. Low-Side, Current-Sense, Transfer Function

Figure 6. Low-Side, Current-Sense, Full-Scale Error