Hello Awal,
You could look at the INA210. You will want a device with the lowest input offset (Vos) as possible. You can also refer to one of these designs as well for more ideas.
TIPD135 - 10uA-100mA, 0.05% Error, High-Side Current Sensing Solution…
Kuramochi-san, Have you solved your issue? The INA226-Q1 (10uA Ib typical) and INA220-Q1 (20uA Ib typical) would be your best options to satisfy your original requirements. You can additionally find low current measurement (10uA - 100mA) designs with…
Hello Hari,
The maximum full-scale linear output ratio I calculated was a quick calculation of Vout_max/Vout_min = 5V/0.05V = 100. This is actually not techincally accurate, but just for comparison. Any voltage output amplifier will have a linear region…
Other Parts Discussed in Thread: INA826 , TIPD156 Hello
I am wondering if TI have a spreadsheet calculator for the INA826 amplifier similar to the one in Table 2 of the INA826 datasheet.
Thank in advance.
best regards
Hey again,
I don't see a problem using the switch with our parts; although, I am not sure if the TPS22959 will be able to withstand the 55A current peaks though. As for the rest of the circuit it seems you have gone with one of the options I proposed…
Other Parts Discussed in Thread: TPS2546 , TIPD104 , TIPD129 , TIPD156 , TIPD175 Hi Team,
my customer would like to use TPS2546 switch for the USB port charging. (5V/3A)
If the system need to detect the charging current and the SOC has the ADC, did we have…
Other Parts Discussed in Thread: TIPD129 , TIPD156 , TIPD135 Dear Sir
We would like to measure 1mA~8A current and the Full voltage range is up to 2V (ADC input)
Have any solution could to this SPEC?
Thanks
Hello Paolo,
Detecting such a wide range of current is definitely challenging, especially given 1MHz BW. The options we typically see are either changing the gain of the device (e.g. using a PGA as in TIPD135) or switching in different sense resistors…
Hello Nikos,
1. The datasheet was written over 40 years ago...I don't know if it was actually built...the original authors are long gone. But it is a common circuit.
2. Assumptions were probably a large current .The LM324 is not considered a "precision…
