Part Number: LOG104 Other Parts Discussed in Thread: OPA2335 Hi,
I would like to ask you a question about LOG104 application circuit, datasheet Page7 Fig8.
The circuit is designed with OPA2335.
My customer has been evaluating this circuit and get…
Other Parts Discussed in Thread: LOG104 Dear Sirs,
I've got an idea of improving an existing electronic part: Log104, a precision logarithmic amplifier from Burr-Brown. I came to Log104 while searching for an exponential (or antilog) converter needed…
According to the TI website, one of the features of this chip is the antilog computation. However, I don't see that it's possible when I go to the datasheet. Are there any application circuits to obtain an exponential output from this chip?
Part Number: LOG112 Other Parts Discussed in Thread: LOG104 , LOG114 , LOG101 Hello everybody,
I want to use a logarithmic amplifier (LOG104, LOG104, LOG112, etc) but it seems that there is some discrepancies about le log conformity error calculation…
Hello Dmitri,
Thank you for your thorough report.
The LOG114 has a minimum specified input operating current of 100 pA. You mention the 1 Gigaohm source resistance. The voltage generated by the source would have to be a minimum of 100 mV for the…
Hi Guenter ,
LOG114 may meet your application requirements, as Clemens suggested.
We also have LOG114 EVM and user guide, see the link below. Also, please take a look at LOG104 and LOG101.
https://www.ti.com/lit/ug/sbou110/sbou110.pdf?ts=1605115516414&ref_url…
Hi Jane,
Unfortunately, I don't believe there is an alternate pin-to-pin compatible device to the LOG102A.
In addition to the LOG112, other logarithmic amplifiers are the LOG101, and LOG104 although they are not equivalent.
Best Regards,
…
Part Number: OPA2335 Other Parts Discussed in Thread: LOG104 , TINA-TI , Hi,
I would like to ask you a question about an offset error of "Current Source Circuit" which is shown at LOG104 datasheet page7, Figure8.
This question is related with my previous…
Hi Sneha,
The LMP7721 is the only option right now. It’s a CMOS process, but this is a great part.
If you are looking for log amplifiers, please take a look in LOG101 , LOG104 and LOG114 parts.
If you have additional questions, please let us know…
Hello Ke Su,
The LOG amplifiers from the Precision Amplifiers product group, such as the LOG104, LOG112 and LOG114, do not have Mil-Spec versions. There is one LOG amplifier product, the TL441 that does have enhanced performance and military versions…
