Other Parts Discussed in Thread: TIPD125, , OPA596, INA592, INA240
Tool/software:
Hi Team,
I am looking for high side current monitor solution to measure ~10uA level current at 48~60VBUS.
The close solution I find is the reference…
HI Gabor,
On the PGA281, shunt measurement, high side current sense design, the calculations are used to set the maximum gain and ensure full utilization of the linear operating range of the device, where the gain(s) required for this design depend on…
The are many ways to measure current and Texas Instruments has a diverse portfolio to do exactly that!
Here are a few links to get you started measuring current with TI products:
If you don't know where to start with your current measurement design,…
There are several error sources to consider when sensing current (or using amplifiers in general) such as CMR, PSR, noise, gain error, and voltage offset drift, but two device properties (input bias current (IB) and input offset voltage (VOS) ) are critical…
In my previous post, I discussed the proper way to layout a printed circuit board (PCB) for an operational amplifier (op amp) and provided a list of good layout practices to follow. In this post, I will discuss common mistakes when laying out a PCB for…
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…
Hi Yehezkia,
INA226 is an Ultra precision Current Shunt monitor but it's bias currents are typically 10uA which will create inaccuracies measuring 1uA of load current. Please take a look at this TI desgin TIPD135 - 10uA-100mA, 0.05% Error, High-Side…
Hello Andrew,
We do actually include the entire Altium schematic and layout project in the design file. However, that's not much use to the customer if they don't have an Altium license.
From the information I found online here, it looks like…
Hi Team,
Customer would like to ask for TIPD135 .BRD file for fast layout change to meet a tight schedule project, we only put gerber file in the public download folder, do we provide this service?
Thanks.
Regards…
Hi Anish,
Please also take a look at this TI Design:
TIPD135 - 10uA-100mA, 0.05% Error, High-Side Current Sensing Solution Reference Design
Hello Randy,
My apologies. The title of your thread clearly states that the 100nF is on the input.
There are component footprints for an input filter on the PGA281EVM, but from the factory there are only 0-ohm resistors in the signal path. That being…
Hello Craig,
If you are new to current sensors then I suggest you check out the Current Shunt Monitor FAQ, especially the section on low current measurement applications. There is one reference design (TIPD135) in particular which is capable of sensing…