Hi Kazuki-san,
Q: Is there any instrumentation device which can change gain digitally? For example, using I2C or SPI, using selecting pin status as binary, etc...
Please take a look at PGA281, PGA204, PGA205 and LMP8358.
https://www.ti.com/lit/ds/symlink…
Part Number: PGA204 Other Parts Discussed in Thread: PGA205 Hi Team,
Can the PGA205 be used with a single ended input? I looked in the datasheet to see if there was an application circuit for this use, but did not see one.
If it can be used with a single…
Hi Shivakant,
I don't think ISO124 will meet your specifications, as its input noise is 4uV/rtHz, and it has a ±50mV max offset spec - 2x your minimum input signal range.
The closest our PGAs get to a sub-10nV/rtHz noise level would be PGA203…
Keith,
Because of the difficulties involved in finding low Ron switch required to minimized the error while using 10ohm shunt resistor, and at the same time accommodating a dual polarity input current, it would be easiest to use the variable gain resistors…
Other Parts Discussed in Thread: PGA205 Our application used one part PGA205 INSTM AMP,SOW16. The failure has been identified Output getting 2.83V instead of 10V.
For more information : Pin 11(Vout) and pin 12 (FB) shorting together for getting voltage…
Hello Pooya,
Our Applications Engineer that directly supports the PGA204/ PGA205 is on a short vacation right now and he would have more insight into what is available for it. Meanwhile, when I search the TI web site for a PGA204/ PGA205 evaluation board…
Hello Sakthi,
There are several PGA options that may meet your requirements. Unfortunately none of the options have as many gain steps as the PGA281, but perhaps you'll find one that includes the gains and bandwidths your system is requiring.
Take…
Other Parts Discussed in Thread: ADS8332 , AM3357 , PGA204 , PGA206 , PGA205 , OPA192 , INA114 , OPA320 Hi,
I am planning to use two ADS8332 to sample a total of 16 single-ended channels and I have a few questions before I select the ADC.
Sitara AM3357 will…
Hello Carlos,
The THS4521 is a good driver, and it should be able to drive many differential ADCs.
Besides, we have two different options so far for this project with differential inputs drivers. In order to make an input single ended, the negative input…
