ADC16DV160: ADC and DAC selection for 4-20mA Analog Input and Outputs

Hi Sujith,

Our filter search tool can be used to search our products here:

-> For ADC's: https://www.ti.com/data-converters/adc-circuit/high-speed/products.html 

-> For DAC's: https://www.ti.com/data-converters/dac-circuit/high-speed/products.html 

You can use this search tool to input all the parameters you mention above.

I will check with our layout expert on galvanically isolated outputs. 

Regards, Amy

Hi Amy,

Thanks for your quick reply and sharing ADC and DAC parametric selection tool.

Let me go through the tool and pickup suitable part,
meanwhile could you please confirm for 125msps ADC and DAC driver design which front end circuit is suitable?
Opamp with transformer-based driver circuit or only transformer balun circuit? 

Regards,
Sujith M

Hi Sujith,

TI has a wide range of digital isolators in our portfolio.  You can take a look here to see if one matches your requirements

https://www.ti.com/isolation/products.html?keyMatch=ISOLATION

Regards,

Geoff

Hi Amy and Geoff,

Thanks for sharing.
I'm not very much familiar on 125msps ADC and DAC with 4-20mA input and output design.
This is too much critical for us. Could you please have a look on this requirement and share the reference design for same. Reference design for 125msps ADC, it should sink 4-20mA loop sensor input and 125msps DAC should be capable to source 4-20mA loop analog out.

Hence im requesting you to suggest suitable ADC and DAC part with front driving circuit for 4-20mA current loop. 

Regards,
Sujith M 

Hi Sujith,

What is the expect input level in dBm?

Our MSPS ADC's don't come with reference designs, but if you visit the EVM pages you can find the EVM design schematics.

Regards, Amy

Hi Amy,

Kindly check the below high-level block of ADC3444 with isolation amplifier AMC3301.

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Could u please review and confirm can use AMC3301 isolation amplifier as a front-end for ADC3444 125msps 14 bit resolution?
let me know your input ASAP!

Also ,Can you explain me what you meant by expect input level in dBm ?

Regards,
Sujith M