Output range problem for AD8497

pruthvikumar019 on Feb 12, 2018

Hi. I am using AD8497 for K-Type thermocouple measurement. I have given supply of +5v and 0V. and Ref voltage of +0.5V. My input signal ranges from -2.0mV to 70mV. I get output signal only for input signal upto 40mV. Please suggest schematic for measuring the complete range of my input signal.

Below is the schmatic I have used.

Thanks and Regards,

Kumar

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0 pruthvikumar019 on Feb 17, 2018 9:07 AM

Hi Jordyn,

Thanks for your reply.

   1. Actually, 5V is the maximum range that I am using in my design and I

   don't have scope to increase it. *So, can you suggest a way to measure

   using 5v supply.* Does changing the values of resistor at the input side

   will meet my requirement. I have a limitation to using the same circuit as

   I got the PCB. I can just vary the values of components.

   2. Is there any other IC that meets my requirement with 5v and same

   Package.

Regards,

Kumar

On Sat, Feb 17, 2018 at 3:30 AM, jrombola <
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0 pruthvikumar019 on Feb 17, 2018 9:07 AM

Hi Jordyn,

Thanks for your reply.

   1. Actually, 5V is the maximum range that I am using in my design and I

   don't have scope to increase it. *So, can you suggest a way to measure

   using 5v supply.* Does changing the values of resistor at the input side

   will meet my requirement. I have a limitation to using the same circuit as

   I got the PCB. I can just vary the values of components.

   2. Is there any other IC that meets my requirement with 5v and same

   Package.

Regards,

Kumar

On Sat, Feb 17, 2018 at 3:30 AM, jrombola <
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