So I have a new project which I am currently working on which needs some protection...
I need to build an OCP which triggers at around 100A.
My shunt resistor is 300µΩ and thus the voltage to trigger on is 30mV.
I just came across the AD8293G80 which is an amplifier with a fixed gain of 80.
This device would give me 2.4V which I would then feed into a comparator to trigger at the 100A mark.
I think I am missunderstanding the datasheet...
The datasheet states that the slew rate and the bandwidth is filter limited.
I need to check the current status at a rate of 30-40KHz.
Can this device reliably sample at that rate with low noise and high ripple rejection?
How am I supposed to know what the max bandwith is? Can I just assume that the clock rate of 60KHz is the max?
Also I can't seem to find what the propagation delay of this device is.
Can I connect one of the Inputs to the ground without having to worry about more noise?
The shunt resistor will have the same ground potential as the amp.
Any help apriciated!
Thanks in advance and best regards from Germany!!!
I need to build an OCP which triggers at around 100A.
My shunt resistor is 300µΩ and thus the voltage to trigger on is 30mV.
I just came across the AD8293G80 which is an amplifier with a fixed gain of 80.
This device would give me 2.4V which I would then feed into a comparator to trigger at the 100A mark.
I think I am missunderstanding the datasheet...
The datasheet states that the slew rate and the bandwidth is filter limited.
I need to check the current status at a rate of 30-40KHz.
Can this device reliably sample at that rate with low noise and high ripple rejection?
How am I supposed to know what the max bandwith is? Can I just assume that the clock rate of 60KHz is the max?
Also I can't seem to find what the propagation delay of this device is.
Can I connect one of the Inputs to the ground without having to worry about more noise?
The shunt resistor will have the same ground potential as the amp.
Any help apriciated!
Thanks in advance and best regards from Germany!!!