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Daniel_Miller
9 months ago
Amplifiers
Amplifiers forum
RE: TL103WA: TL103WA current sense accuracy/tolerance calculation
John, You may also find TIPD175 and
TIPD129
interesting and useful. Regards, Daniel
Pete%20Semig
over 5 years ago
Amplifiers
Amplifiers forum
RE: Current sensor
Hello Hung, Please note that TI does not sell "current sensors". However, placing a precision resistor in series with the load current will generate a voltage proportional to the current. This voltage can be amplified and digitized by an...
Pete%20Semig
over 5 years ago
Amplifiers
Amplifiers forum
RE: DC Differential amplification with gain
Hello Jason, Thanks for the additional information. I have been out of the office and will reply in greater detail early next week. On a couple of side notes, please understand that the noise of a 5kohm resistor is ~9nV/rtHz. Perhaps you'd be interested...
Mitch M
over 3 years ago
Amplifiers
Amplifiers forum
RE: INA210: Current Sense Amplifier Suggestion - High Dynamic Range
Hello Mithun, I think you might be able to adapt the TI design
TIPD129
( http://www.ti.com/tool/
TIPD129
) to your application. Will this work for you?
Peter Iliya
over 2 years ago
Amplifiers
Amplifiers forum
RE: LM25056A: Current sensing using LM25056A
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...
Peter Iliya
over 3 years ago
Amplifiers
Amplifiers forum
RE: INA260: Current register reading is always -1.250000, even though I'm measuring 0.42mA with ampermeter value
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...
Peter Iliya
over 3 years ago
Amplifiers
Amplifiers forum
RE: INA225-Q1: Sensing 0.085mA and Detecting no load(0mA)
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...
Pete%20Semig
over 4 years ago
Amplifiers
Amplifiers forum
RE: Asking for USB current sensing OP
Hello Scott, It is likely that the customer can simply use an op amp (I assume that's what you mean by "OP"), but first I would like some additional information: 1) What power supplies are available for the sensing circuitry? 2) Does...
Pete%20Semig
over 5 years ago
Amplifiers
Amplifiers forum
RE: INA326 and 100mV reference voltage (using LM111)
Hello Hoang, I recommend using the LM7705. Please take a look at TI Precision Design
TIPD129
as a reference.
Pete%20Semig
over 5 years ago
Amplifiers
Amplifiers forum
RE: Measuring 2.5uA threshold current
Hello Kwan, I recommend modifying TIPD104 for your load current range. It should also work on the high side since the input common-mode range extends 100mV beyond the positive supply voltage. Please note that the output voltage swing, like all other...
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