Part Number: INA190EVM Other Parts Discussed in Thread: INA190 , OPA320 , LM7705
Dear TI colleague
I am using INA190EVM as an amplifier for a PIN photo-detector. The light input is CW light, no modulation is on. The current is below 0.1mA. Rsense is 1k…
Part Number: INA190 Other Parts Discussed in Thread: TVS2700 , , In order to provide context, I will use the INA190 as a 4-20mA receiver, and I have concerns about how to protect its inputs. The idea is to use it in Loop Current mode. The power supply…
Thank you for your reply, Carolus.
I have ordered the INA190EVM.
Can I just use normal 1% resistors in the Rsense position for these boards? I appreciate your careful explanations.
I will finish watching the videos while I wait for the boards to show…
Part Number: INA190-Q1 Other Parts Discussed in Thread: INA190 , INA190EVM Hi team,
Is there any graph for input bias current with following conditions?
- Differential Input Voltage ~3V
- Vs = 5V, Vref = 0V
D/S only mentioned IB with <60mV differential…
Hey Ted,
I think the rules you have enumerated are very reasonable for this use of INA3221. I suggest also heeding the instruction of the Layout Guidelines in datasheet Section 11.
I would say a couple other additional potential rules are:
- If space…
Part Number: INA210 Other Parts Discussed in Thread: INA190EVM , , INA190 Hello,
I just began to use theINA210 using the configuration of the INA190EVM. I have a questions to confirm that everything is set correctly.
1.I create a new combination for…
Hey Bart,
Welcome to the E2E forum and thank you for your question.
I am not quite following some of your signal-to-noise calculations. For INA190A1 I calculate 31dB at 0.08A load.
En_rms = en_BB*SQRT(Kn*BW) = 75nV/rtHz * SQRT(1.22*45kHz) = 17.5uVrms …
Rahul,
I'm glad we could get a solution to solve first half of your system requirements. The INA190 comes with an EVM (evaluation module) you can order it here. This EVM allows for you to solder down a shunt resistor for quick testing.
www.ti.com…
Thanks Patrick!
Thanks for the information. Now I look that you have also a evaluation kit. the INA190EVM So for the specific test for the current measurement what components should be populate to make the measurement? Beside the R8/Shunt resistor in…
Hello T. Coyle, The INA190 could be used for motor low-side current sensing, but will most likely not be the optimal solution. Sensing peak motor current can require high BW, high slew rate, and short output settling times, and the INA190 was not optimized…