I found ADG1207 suitable for my application. In order to verify the functionality of the entire DAS I need the spice model for the part ADG1207.
Please provide the same..
Thanks for your response. The discussion with You and Joe is much useful.
I have another one doubt to be cleared.
The first figure taken from ADG407 data-sheet.
Whereas, the second figure taken from ADG1207 data-sheet.
ABOUT THE HARDWARE IN BRIEF
I have designed a fully universal 8 channel differential Analog Input Module (Thermocouple,RTD,mA,0-10VDC). All the channels are non-isolated. At the input of each channel there is a common-mode(cut-off = 1kHz)and differential…
Muxes like the ADG1407 have to use larger devices to get the low R_on. Therefore they end up with higher capacitance. In-amps like the AD8253 or AD8221 have very high input resistance, so the on-resistance of the mux in series with the in-amp…
A couple of things to consider....
-- Every year ADC prices come down, so I would consider using three ADCs or more. Although the ADG1207 is a low capacitance mux, it still has finite on resistance and capacitance. To get to 16 bits of accuracy…
I am working on differential Multi-channel high precision DAS. I have chosen the following architectures.
Spec: CMRR - >=50dB @ 0 to 1Khz
Gain Error - 0.02%
AAF --> MUX --> IA --> Post amplifiers --> ADC
I am on the verge of completion of an 8-channel analog input module design. Each channel can measure RTD Pt-100, Thermocouple (J,K,R,S,T,B,N),0-10VDC and 0-20mA input types. A 24VDC external supply can power this module. I have used an…
I am designing a multi-channel DAS. The specificatios or as given below;
Total channels : 24
Analog input signal range : +/- 10V
Resolution of ADC : 16 bit
Gain error : <= 0.02% of FSR i.e <=4mV
Offset voltage : +/-1.2mV