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BipolarVoltage-to-UnipolarVoltage_ADC_Input.php    7247 Bytes    14-06-2024 19:13:13

Bipolar Voltage to Unipolar Voltage ADC Driver

Online components calculator

Input [Vpp]
Output Max. = Reference [V]
Output : 0 ... Ref. [V]
Auxiliary Voltage [V]
@ positive Input Terminal
R1 [kΩ]
R2 [kΩ]

R3 [kΩ]
R4 [kΩ]
R34 [kΩ]

✈ Some Design Notes

The Output (input to the adc) goes from 0 V up to the Reference Voltage.

The inverter will do its job. Inverting. Compensate for that in Software.

R6 and C6 can be calculated here.

R34 and C34 may be omitted in some cases. Read the Datasheet of your Opamp..

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t1 = 6586 d

t2 = 150 ms

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