Part Number: LMP8640 Other Parts Discussed in Thread: INA196 , INA197 , Tool/software: We have a 0.02Ohm current sense resistor in use with the LMP8640-F, which gives a current sense gain of 1V per A.
Second, we have a 0.05Ohm current sense resistor…
Part Number: INA197 Other Parts Discussed in Thread: INA293 I search support on INA197,
I use sense current AOP INA197 for a large range [0A ; 40A] with an sense resistor of 5mOhms .
The supply of amp is 12V and and force common mode (Vcm=+15V), in…
Hello Lorenzo,
Thank you for using the TI forum. The “Swing to GND” characteristic (your point 3) does not show the output at a near zero differential, but rather how close the output gets to ground with a hard driven negative differential for the…
Part Number: INA197 Other Parts Discussed in Thread: INA152 , INA282 , INA213 Hi,
I am trying to build a current sensor for a +/- 2mA sinusoidal current source injected into a 5k to 10k Ohm load. I am using the circuit shown in figure 29 of the datasheet…
Hi Kawai,
I need some application details to understand if this behaviour is expected. Please share a schematic with information on supply range, common mode voltage, load current and shunt resistor. I see in the scope shot that the output saturates…
Hello Kawai,
Also the Electrical Characteristic table in the INA197 datasheet has a Max Total Output Error spec of about 2.2% for Vsense= 100 mV (only including Vos and Gain error). There are additional errors like shunt resistor tolerances that contribute…
Hello Rabab-san,
Thank you for your support.
[1 and 2]
How about when shunt voltage is measuring 3mV ? I think negative offset voltage would affect the monitoring current.
Vos=+3mV --> (3mV+3mV) x50 = +300mV
Vos=-3mV --> (3mV-3mV) x50 = 0mV …
Other Parts Discussed in Thread: INA194 , INA193 , INA195 , INA197 Hi everyone!
I've been experimenting lately with the INA197 and I am planning to incorporate it to my final PCB design. However, before manufacturing it I want to be sure of one thing…
