I am designing a product to measure current using Current Transformer and my final output should be 4-20mA or 0-20mA or 0-5V or 0-10V based on primary current. So I plan to use AD5750-1 to my application.
In my design, current sense transformer output is 0-2.5V AC which is sensed using burden resistor across current transformer output. I want that to be fed to input of AD5750-1.
Can i feed my 0-2.5V AC signal to input of AD5750-1 at Vsense+ and Vsense- ? If not, What would be the best practice to achieve this ?
Moving this to its proper community Precision DACs.
You need to feed it to the VIN pin of AD5750.
Vsense+ and Vsense- are should be connected across the load of the VOUT to ensure proper regulation.
Thanks for replying. I hope that "VIN" pin is only for DC(0-2.5V DC) input in AD5750-1.
Shall i feed 0-2.5V AC/50hz signal to VIN pin of AD5750-1?
If I feed AC signal(0-2.5V AC/50hz) to VIN pin, will it damage IC ? How AD5750-1 will perform for AC signals?
50 Hz should be fine and the output should be able to respond accordingly.
Please refer to Figure 17 and 18 of the data sheet for the voltage output time domain response and Figure 47 for the current output.
Thanks for your reply. I referred figure 17, 18, 47. I hope that It works well for 50 HZ signals and can get stabilized DC voltage/current (0-5V or 0-10V and 0-20 mA, etc). Can you please clarify below three questions.
1. If i feed AC signal to "VIN" pin, Can i get DC voltage at VOUT and DC current at IOUT ?
2. If i want to feed AC signal to "VIN", how to connect neutral of AC input signal? Can i connect Neutral of AC input signal to DC ground ?
3. What is the performance of AD5750-1 when i feed single supply?