Other Parts Discussed in Thread: VCA822 , OPA378 Hello,
I'm having trouble configuring the input of the VCA822, I am using it as a single ended input and feeding it from a OPA378 OpAmp. My problem is the signal coming out of the OPA378 was riding on…
Other Parts Discussed in Thread: OPA378 Hi,
I'm doing some dynamic response calculations on a circuit and got the following doubt,
OPA378 data sheet says that it's slew rate is 0.4 V/us for G=1. My problem is what is the slew rate figure if the gain…
Hi Domenico,
As I observed, in the course of debug that the open loop gain/phase has itself not coming up correctly for OPA277 net-list in PSpice, I checked with recently developed op-amp models like OPA350/OPA378. The design is working fine with…
Wen,
For higher PSRR, please consider OPA330 or OPA378.
Btw, there is a typo in the OPA376 channel separation units you highlighted in your post - it should be [uV/V] instead of [mV/V].
Hello Billy,
I will go ahead and set up a model for this in TINA accounting for the transient current loads for the 12 ADS9110 driven by the composite amplifier (opa378+OPA625). I suspect that you will not be able to drive all 12 ADC's at the same time…
Hello Errol,
We found one problem but still have stange behavior with the ADC. The first problem came from the voltage follower buffer connected to the REF2030.
The output of each voltage follower was very noisy. Do you know why the OPA378 was…
Thanks. I'll have a look at the videos when I get some time.
I'm concerned the input biases of those op amps may be a bit too high for ECG buffering (OPA378 datasheet says the max is ±670pA), and getting too expensive. The device has to pass a test…
Other Parts Discussed in Thread: OPA376 , OPA625 , ADS9110EVM-PDK , ADS8860 , ADS8881 Hello,
Regarding the composite buffer you proposed here , could you please take a look at the layout for the composite buffer ( OPA378 + OPA625 ) and the connection…
Hi Luis,
Again, thank you for your support efforts. In the meantime the customer has asked a few more questions:
1. The ADS9110EVM has a reference consisting of three parts (REF5045, OPA378 and OPA625). Is this rigorous reference circuit really necessary…
Other Parts Discussed in Thread: OPA330 , OPA377 , OPA376 , UCD3138 , OPA337 , OPA378 , OPA353 , OPA350 OPA330 is used in Power Brick Module to sample output current from copper at low side. but its GBW is only 350kHz, when at load short test, output…
