I want to use this AD8237 INA with the US9111 whetstone bridge pressure sensor

Question

Pressure sensor US9111; 
 Offset voltage: 30mV 
 Output voltage range: 40mV to 100mV(15PSI range) 
 Excitation Voltage: 5V 
 How can I make 0 voltage into the hardware at initial condition(when no pressure is applied) 
 My question is that; 
 For the Offset removal with RA resitor, do I need to use DAC. Or if I give 2.5V at that place through voltage divider will it make the 0 Volt output at the initial condition. And, I am connecting this sensor with the ESP32, so the ADC range is 0 to 3.3V. Please help me on the right circuit connection.

Arsol · Accepted Answer

Hi RRE2024 
 Thank you for reaching out and sharing your inquiries with the team. 
 I would like to ask several items below to understand the design requirements and applications better. 
 
 If I understand it right, the end application is a pressure sensor. Do you plan to integrate an AD after the Instrumentation Amplifier? 
 What supplies did you plan to use? Do you intend to use a single or dual supply configuration? 
 What is the value of Vex? 
 What are the Res values for your Wheatstone bridge? 
 Is the 30mV your Bridge Offset? 
 Values for your VA, R2, R2 and RA? 
 
 Regards,)

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I want to use this AD8237 INA with the US9111 whetstone bridge pressure sensor

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