Part Number: INA240
Hi,
I am having a problem with the INA240A2PWR.
The output of the INA240 sometimes oscillates after cycling the power.
Please refer to the attached file for detailed information.
Any help in resolving this issue is appreciated
Thanks
Robert Wilde
(Please visit the site to view this file)
Part Number: TLV7011
Hello,
Are you able to help us locate what pin is Pin 1 on this package - X2SON
Part number is TLV7011DPWR
photo of part 
Thank you,
Hello to all,
What is TI part number of a 1x or 4x buffer with high voltage input/s (±200v), low voltage output/s (+3v3) with and isolation barrier preferably TSSOP SMD package? It seems an extra parts count burden/space to resistively divide the HV into a lower voltage outside the package.
Thanks for any suggestions that advance beyond TI document SBOA097B–June 2004–Revised May 2015
...
Part Number: LMH6518SQEVK
Hi,
I am using LMH6518 EVM to amplify the signal.
In LMH6518 datasheet, it is mentioned that over-voltage clamp can be set using SPI but in SPI i can see only 1 register through which i can set only bandwidth, ladder attenuation, etc. but i am not seeing any data bits to set over-voltage clamp.
The Only settings from SPI is mentioned as below tale.
Can you please assist us for the setting overvoltage clamping?
Regards,
Vishal Dhanani
Part Number: LMV358
Dear all：
Our company USES TI LMV358 to form a voltage follower circuit (see attachment), and USES 3.3V for power supply. When the input of 0-3V varies linearly at the same phase end, the output follows 0-3V.
The test results are as follows:
When the in-phase input is less than 2.7V, the voltage follows well. When the in-phase input is more than 2.7V, the abnormal results are as follows:
1. The output terminal voltage jumps to 3.276V (same as the measured supply voltage 3.276V)
2. The output terminal voltage is fixed at 2.726v (the actual supply voltage is 3.276V)
When the output is abnormal, the input terminal voltage still changes linearly accurately, so the LMV358 output is abnormal.
May I ask the following questions: 1. What is the input voltage range of LMV358?Whether input above 2.7v in the same phase will cause it to exceed the linear workspace
2. What is the output voltage of LMV358 beyond the linear working area?
3. What is the input range (curve) of different supply voltage?
Part Number: DIP-ADAPTER-EVM
Hello,
I am unable to find the footprint dimensions of this board. Was trying to double-check if LMP7721 will fit in this board.
Although I've seen in LMP7721 datasheet that its package is SOIC, drawing D,
and the board does support "D and U (SOIC-8)",
Can you please advise if these fit together?
Part Number: INA225-Q1
Hello
I am using the Ina 225 but I think that I do not know to use it with a PWM signal. As a Pwm signal the value is in the modulation and not the peak. So, i am use that I lack some knowledge.
So, please tell me, who reads this bottle in the sea, how do you manage a pwm signal with a INA225.
Thanks to all for your help
Regards
Vincent
Hi
My customer is looking for a analog front end circuit to support its post ADC to achieve a micro current (nA level) measurement in 600V DC line. Do we have suitable solution to propose?
Thanks!
-Rocky
Part Number: OPA211
Hi officer,
I am writing to enquire about one problem I met on '2.2 TI Precision Labs - Op Amps: Vos and Ib - Lab'.
the screenshot below shows the schematic.
And at 03:06, it shows a Req calculation in pic below:
I am confused by why 'Req = Rf R1 /(Rf + R1).'
can anyone please help on this?
thanks,
Jim
Hello,
I have tested for the circuit stability, and the bode plot graphs are totally flipped when I change the resistor value from 3.4k to 3.2k.
Could you tell me what this means, and is this stable circuit when I use 3.2k resistor?
Thank you very much!
Hello,
I want to check whether my capacitors positioning is correct or not for input impedances.
Is this correct that I put 3 capacitors between vin+ and vin- like this first picture, or can I just put one capacitor like second picture?
Part Number: VCA810
Hi team,
My customer is using VCA810 to control the sine waveform amplitude, see schematic below, but they find that our device will cause a non-linear issue to the input signal. See test below, this table shows that the VCA810 will affect the input signal and reduce the Vpeak value. This effect is hard to be calibrated. Do you have any idea about how to avoid this effect? Thanks.
Input signal Vpp | Data in ADC3424 Gain=0dB | Data in ADC3424 without VCA810 |
| 1V | 783 | 843 |
| 0.5V | 411 | 422 |
| 0.25V | 211 | 212 |
Part Number: INA220
I understand that by using the Vshunt voltage ( Vsense) with my max current load (10mA) I can determine what my Rshunt value in my design should be. However, can you explain why I might want to use the lower Vshunt voltages? It seems like with a fixed bit resolution and my current load, there will be a fixed resolution in terms of Current/Bit based on that. I know that based on Vshunt and the range of currents measured, this will attribute to the resulting error of the measurement as the lower end of voltages will have the most error and will decrease as I approached the max Vshunt voltages. How does this fit in if I need to measure a minimum step size of 0.1mA and nominal currents of 6mA. Should I choose a Vshunt voltage that is closer to the currents I will measure nominally or the smallest current I need to be able to measure i.e. 0.1mA? Thanks.
Part Number: THS4303
Hi Team,
I would like to request please, if possible, to receive the gerber files for the following evaluation boards:
THS4303EVM
THS3491RGTEVM
Also, if you know of any product of the THS3491 family (current feedback amps) that have a higher slew rate, please let me know (even is in near roadmap).
Thanks,
Shlomi
Part Number: LMV324
Hi there,
My customer is using LMV324. But, there is problem in oscillation.
they want to get another thing that solve the problem in oscillation and have 4 channel.
Could you recommend another product to me on behalf of LMV324. ??
Please let ma know ASAP. Thank you.
Part Number: INA3221
Hi team,
My customer is using the INA3221 now, we want to check how to deal with the unused pins, especially for the negative pins. Whether we need to pin the negative pins to gnd and why ? Thanks.
Part Number: OPA857-DIE
Hi,
I want to use OPA857-Die, Could you provide detailed datasheet?
Best regards!
Lemon Shen
Part Number: LMC662
Customer built hardware boards based on unity gain schematic below. Oscillation was observed. To make circuit stable, a 6.8KOhm pull up resistor was added at output of Op-amp.
However, customer noted that during simulation in TINA, the exact same circuit (without 6.8KOhm pull up), does not oscillate.
Can TI explain the gap between the actual and simulation?
In customer's own words: "In order for us to continue using this op-amp in the design, we need to be confident of the stability margin we have and be able to simulate what we measure! Could you please ask TI how they would recommend we simulate the stability of the design? We would like to do this in terms of phase margin."
Part Number: XTR111
Hi Team,
When using XTR111, the definitions of pins 2 (IS) and 3 (VG) are not very clear, how they work and what signals they output. What are the output signal waveforms of the two pins? Could you help me clarify it? Thank you in advance
Regards,
Amy
Part Number: LMC7221
Hi, Sir:
Our Customer is asking Back side Marking information.
Do we have this information like following?
AB245B = Short name for SN74ABT245BRGYR
TI = Texas Instruments
Y = Year
M = Month
S = Site code
LLLL = Lot trace code
O = Pin-1 quadrant identifier (data sheet specifies exact pin-1 location)