Hello Anil,
Thanks for the new schematic and clarification. My only additional comment is that C105 is large and may cause stability issues for the OPA313. According to the OPA313 data sheet (Figure 21) you should reduce it to 50pF to maintain 45degrees…
Hi Matt,
If you have pretty large input currents then the input bias current of the op amp and leakage current of the MUX is not as critical as very low current applications. Therefore most standard CMOS or JFET op amps will work fine for the transimpedance…
Hello,
Thank you for the additional information. At this point we still do not see any reason for failures of the OPA313 devices. Would it be possible to get the real full schematic from you? If you're not comfortable with posting it on the forum we can…
Other Parts Discussed in Thread: OPA378 , OPA347 , OPA369 , OPA334 , OPA313 , OPA376 , OPA330 , OPA333 , OPA188 , OPA180 , OPA170 , OPA171 Narional Semiconductor developed a method of measuring the EMI rejection ratio (EMIRR) of OpAmps in AN-1698. (This application…
Other Parts Discussed in Thread: SM73201 , OPA333 , OPA320 , LMP2021 , INA330 , XTR111 , ADS8405 , TMP101 , OPA735 , OPA313 , OPA330 , OPA354 , OPA365 Hello,
I am designing a temperature reading system, high accuracy (>+-0.1ºC), NTC based.
There are over 10…
Other Parts Discussed in Thread: TINA-TI Update of TINA9-TI Spice Model Libraries and Example Circuits
This note describes the step-by-step process for updating the TINA9-TI Spice Macro Libraries and Example circuits. The update is initiated by selecting…