We are working on the design of data acquisition system. Specifications are:1. ADC Resolution: 16bit (minimum 14bit)
2.Number of analog input channel 4 ch. (single ended 4ch., differential 2ch.) 3.. Input Range -10V to +10V, 0 to +5V.4. Limit frequency (3dB) 10kHz/Through(200kHz) selectable (if possible) Could you suggest any ADC that supports these specifications?
Alternatively, could you provide solution to this design.
Also, I am referring to the circuit note CN-0254. The opamp AD8608 has a slew rate of 5V/us. However, the maximum signal frequency is 1.5MHz and output voltage peak is 4.096V. So as per the calculation slew rate should be: Slew Rate= 2*pi*f*V= 2*3.14*1.5M*4.096= 38.6 V/us. What is the logic working here?
For the device selection you can use the parametric search in the Analog website. you can filter/search according to specification. Please see attached link. Parametric Search.
Please note CN-0254 can't support differential input signal base on your required 2 channel differential specification.,however can accept +/-10V single ended signal.