Hello, every buddies. Here comes a question that need your help.
A customer need a a high accuracy constant-current source circuit (precision <0.01% @ 20mA output current) and a constant-voltage source circuit (precision <0.02% @ 100mV output voltage).
For constant-current source circuit, they have read our CN0099----High Precision, Low Cost Current Sources Using the AD8276 Difference Amplifier and the AD8603 Op Amp. But this circuit accuracy is 0.02% and customer hopes that they can reach the accuracy of 0.01%, can we offer a solution to them? By the way, if we change the Amp. , can we offer a figure which looks like the figure.2 in CN0099----"Test Results for Current Source Using the AD8276A, AD8603, and 2N3904" to confirm which voltage reference to select? Thank you very much.
For constant-voltage source circuit, customer would like to choose our DAC AD5781/AD5791 to implement this application. Can we provide a compete reference circuit based on AD5781/AD5791 to meet the requirement of (precision <0.02% @ 100mV output voltage)?
Appreciate for your answers, thanks again.