Hi Kane,
Yes, these pins can be floated. However, make sure that the BYPAS bit in the CONFIG0 register is set to 0 to internally connect the MUX output to the ADC input.
Also, do keep in mind that the ADC inputs are switched-capacitor type and don…
Other Parts Discussed in Thread: OPA365 Hi,
I received the question from my customer.
The customer is using OPA365 as an inverting op amp.
Is there a reference circuit diagram for this?
I want to know a recommended feedback resistance value of…
Part Number: TL082 Other Parts Discussed in Thread: OPA365 , TLV9062 , OPA2172
Hi there,
I'm in a development phase of a project in which I need to amplify the received output from a piezo element(ultrasonic). I am getting the raw output(without amplification…
Hi Jonny,
Thanks for that, my sim is set up exactly the same but it's having convergence errors which is strange. It's okay, i can just use yours. If I swap the OPA365 out for the OPA2810 I get a much better triangle wave but not perfect. Do you have…
Ondrej,
If underrange is referring to a negative input signal below -0.3V forced on to a pin, there is the potential for the internal ESD diode referenced to ground to turn on and disturb the internal ground plane. If underrange is referring to a negative…
Hi Reenaers
Welcome to TI E2E Forum !
To answer your question
The 5 ohm value given in ADS7947 applications circuit is specific to driver amplifier OPA365. OPA365 can drive higher capacitive load in unity buffer configuration.
If you plan to…
Hi Rahul,
I do not see any capacitors between power and ground close to the OPA365. If there are none, any disturbance in the power supply could cause a large spike, since the power wires to the device are inductive, and they cannot supply current fast…
Part Number: ADS1158 Other Parts Discussed in Thread: OPA365
Team,
I'm looking for a recommendation on a unity gain, unipolar drive circuit for ADS1158. Single ended inputs will be used so looking to implement something similar to Figure 55. I see…
Hi Kai,
I find a new question about phase margin.
When I simulate the circuit with OPA365 and without C2.
The AC transfer characteristic is as below:
When the Gain=0dB, the phase margin is 34deg.
But the phase margin can be 1deg when the Gain…
Chris,
Thank you very much for considered, informative and encouraging response, I really do appreciate it! I've incorporated each of your suggestions in an updated schematic, which is posted below:
As per my original post, here are some notes/comments…
