+

±

IN+

IN±

REF2

REF1

VS

GND

OUT

VS

REF5025

2.5-V

Reference

Copyright © 2016, Texas Instruments Incorporated

Figure 8-5. External Reference Output

8.4.3.2 Output Set to Mid-Supply Voltage

By connecting one reference pin to VS and the other to the GND pin, Figure 8-6 shows that the output is set

at half of the supply voltage when there is no differential input. This method creates a ratiometric offset to the

supply voltage, where the output voltage remains at VS / 2 for 0 V applied to the inputs.

+

–

IN+

IN–

REF1

REF2

VS

GND

OUT

Output

VS

Figure 8-6. Mid-Supply Voltage Output

8.4.3.3 Output Set to Mid-External Reference

In this case, Figure 8-7 shows how an external reference can divided by two by connecting one REF pin to

ground and the other REF pin to the reference.

+

–

IN+

IN–

REF1

REF2

VS

GND

OUT

VS

REF5025

2.5-V

Reference

Figure 8-7. Mid-External Reference Output

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INA241A, INA241B

SBOSA30A – MARCH 2022 – REVISED AUGUST 2022

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