Waqas_MicroSolutions
Member level 1
hi,
I am using ad620 as preamp for a load cell resistive bridge, 20mV max output at 5Vcc.Max Load capability of load cell is 100Kg.
I'm having two Problems, When there is no load, It is still giving 0.968 Volts which unacceptable and supposed to be zero at zero Load on Load Cell..
Secondly,in Proteus simulation output does not become linear until input exceeds 5mV..
In Practical, op amp's output gives nonlinear output at all Physical Loads.
Here is my Proteus simulation results and my implemented circuit is the same.
Thanks in advance
I am using ad620 as preamp for a load cell resistive bridge, 20mV max output at 5Vcc.Max Load capability of load cell is 100Kg.
I'm having two Problems, When there is no load, It is still giving 0.968 Volts which unacceptable and supposed to be zero at zero Load on Load Cell..
Secondly,in Proteus simulation output does not become linear until input exceeds 5mV..
In Practical, op amp's output gives nonlinear output at all Physical Loads.
Here is my Proteus simulation results and my implemented circuit is the same.
Thanks in advance