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XTR305: with a single power supply for 0-10v output application
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OPA2316: output status when SHDN pin is deasserted in OPA2316
Part Number:OPA2316
In OPA2316SIRUGR, how is the output status when SHDN pin is deasserted(Low to High)?
Does it depend on input status or start from V- voltage level?
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LM6134: OPAMP working
Part Number:LM6134
Hey,
I am using LM6134B opamp and doing simple tests. Surprisingly, I found a strange behaviour, for which I am trying to find the reason. I am applying a ramp wave from 0 to VDD at the non-inverting input. I am connecting both VDD and GND. I am keeping both inverting terminal and output of the opamp open. In this set-up, when I increase non-inverting terminal voltage from 0 to VDD i see that the inverting terminal also results in 0 to VDD (more or less). I went through the data sheet (www.ti.com/.../getliterature.tsp and there is an internal block diagram in page 14. Can someone explain or convince me what's happening ?
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LMP8645HV: LMP8645HV destroy
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INA301: OCP for 400V DC BUS
Part Number:INA301
Customer would like to implement a OCP function with high DC bus to realize quick fault response time once OC event.
Do we have INAxxx product or roadmap that can support such application? it looks the INAxxx device needs to sustain the voltage rating up to 600V at least.
application: HV Motor Drive
Function: OC Protection
Watts: 100W to 20KW
DC Bus Voltage: 400V
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How to generate 30kHz sine wave?
Team, do we have any solution that can be used to generate a 30kHz since wave? Would be better if we have a reference design. Thanks.
Regards,
Nic
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OPA365: with offset and -10+10V input... wondering
Part Number:OPA365
Hello Support,
Currently I am using a OPA365 in MFB configuration connected to an Teensy3.6, the input is a -175mV Offset with an 375mVpp signal on top, to get exactly 0 till 3.3V Swing.
for designing the mfb I used the http://sim.okawa-denshi.jp/en/OPttool.php
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TLV9064: TLV9064 to drive 13ohm load
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recommanded current detection IC
hi Team,
customer is looking for a current detection IC, that if the current exceeds the set threshold, the IC can have an output signal to pull low and alert the system.
the idea is to measure the current passing through lithium battery (can add a Rsense in series of the battery to get the current)
the battery configuration will be 2S2P, so max voltage can be 8~9V, and wants to monitor the current passing through each of the parallel cells (one on top stack and one on bottom stack). due to the parallel connected cell is not the same model, one may have lower current threshold, so we want to monitor the current passing that particular parallel cell (can add a Rsense in series of that cell for the current measurement)
the current threshold needs to be configurable, and once the current exceeds the threshold, the IC just need to output a low signal to the system
please kindly suggest a suitable IC and prefer to have less consumption current. Thanks
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LM7322: One op amp gives a correct gain of 2 while the other does not
Part Number:LM7322
Hi
I am using LM7322QMA/NOPB which is a dual op amp. I have connected both op amps in non inverting configuration and i have used 402 ohm resistors to set a gain of 2.
if i apply for example at input of first op amp 1.8 volt i get 3.6 volts which is correct
if i apply at the input of second op amp 1.8 volt i get 2.8 volts instead of 3.6 volts.
do you know ´what is the reason? why it is happening like this
I want high output op amp that is why i used this op amp
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INA333: How do I combine multiple Common-Mode signals to the feedback stage of a multi-channel biopotential amplifier which feeds back to the reference electrode?
Part Number:INA333
Hello everyone,
I want to design an 8-channel biopotential amplifier to measure EMG signals. In the figure, the signals from electrodes (E1 to E8) are fed to InAmps (IN1, IN2... IN8) and Band Pass Filters (not shown) before DAQ. The OpAmps (OP1, OP2) are part of the feedback loop for Common Mode Cancellation which feed the Reference Electrode (E_Ref). For a single InAmp circuit, the CM1 signal is fed to the +ve input of the OP1.
How do I combine multiple Common Mode signals (CM1 to CM8) to the same feedback circuit?
Is the answer as simple as a summing amplifier? If I do that, how will it impact the InAmp stage? Will it not load the InAmp?
A descriptive answer would be extremely helpful. I understand there are many companies which sell these ready-to-use products but due to budget constraints I have to design the circuit myself.
Please help. Thank you.
(Please visit the site to view this file)
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LMP7721: Conformal Coating for the Trans-Impedance Amp
Part Number:LMP7721
Hi all,
I am using the LMP7721 for a current detection circuit. The current is generated by dispersing aerosol concentration thought an LSC chamber. The current value is very small in the order of microamps for 100% concentration. I have observed this particular amplifier has fluctuating value when there is some moisture content or any aerosol contamination which renders our unit useless. I have been also told not to conformal coat the circuit and to keep it residue free. But it is getting really hard to keep the area clean for a prolonged period of time. Would TI recommend any conformal coating technique and any specific type of coating to help me protect the circuitry from becoming unstable??
Thanks
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LM124AQML: Popcorn Noise
Part Number:LM124AQML
Taber has what might be popcorn noise in some of our transducer which use the LM124AWGRLQMLV. Are there any in-circuit testing that can be done? The op amp is configured in a typical 3-amp instrumentation amplifier, with input from a 5000 ohm full bridge excited with 10VDC.
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TLV07: Dual loop feedback and output swing limitation - TINA-TI Simulation
Part Number:TLV07
Hi,
I've made some experimentation with TINA-TI and TLV07 model. TLV07 was powered as single-supply 0V to +15V.
According to the TLV07's datasheet, the output voltage swing limitation of 120mV should be an issue at single supply. I have tried to simulate both, dual and single feedback voltage follower and according to the TINA-TI's simulation, this hasn't been appeared as an issue. For 10mV input voltage, output was 10,033992mV (10mV + Vos). TINA-TI simulation is attached. Maybe I am doing something wrong, but from my point of view, output should be 120mV or some other non-linear value.
Has someone experienced this issue in real single supply application?
(Please visit the site to view this file)
Br
Josko
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Commemorator IC for pressure sensor design
Dear *,
i have a pressure sensor that has an output from 0-5V depending on the pressure.
I want to make a circuit when the pressure drops below a level that the circuit generates a square pulse with defined pulse duration.
I want to do it without a uC.
My idea is to use a compactor IC and a timer IC ( NE555) and a reference voltage IC.
Please can you suggest the Compactor, timer and reference IC for this application ( please note that i need all the ic to be in DIP package)
Best Regards,
D.
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INA181: INA181A1 current sense amplifier output formula
Part Number:INA181
I have read everything I can find online about the INA181A1 current sense amplifier. I have a 5mOhm current sense resistor, an ATtiny1634, a 5v power supply and would like to track the current in my circuit.
My problem is that I can not find any reference about applying the voltage I would read from the output pin to a formula that would give me the amps drawn across the resistor at read time.
I find tons of formula's for calculating error amounts, sensor resistance and so on. Can anybody point me in the right direction for the formula to convert the output voltage to amps?
Thnx much in advance. Bill
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DRV595: The maximum output of the DRV595
Part Number:DRV595
Hi team,
For the DRV595, what's the maximum differential output voltage?
Does the maximum differential output voltage relate to the supply voltage and the load?
I have find the spec in the datasheet, the datasheet shows the output differential voltage can't be larger than 12V.(as below)
So I don't know if this spec is related to specific condition.
Can you help to provide the method to know the maximum differential output voltage? such as the PVDD=12V, the output load is 8 ohm.
Lacey
Thanks a lot!
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TLV9052: Thermal Pad
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LPV812: Merging two reference designs
Part Number:LPV812
Hi guys
I would like to ask/confirm if my circuit designs is workable.
I took reference from two designs,
1. MSP430FR2311 Microcontroller IR Reflection Sensing Reference Design(www.ti.com/.../TIDM-FRAM-IRREFLECTIONSENSING)
2. Always-on Low-power Gas Sensing with 10+ Year Coin Cell Battery Life Reference Design(http://www.ti.com/tool/TIDA-00756
Currently, I am trying to implement CC2652R instead of MSP430FR2311. And I need an additional TIA circuitry.
From the reference 1, I do not know which TI Amp do they use as it is internal built in.
So, I followed reference 2, and use the external TIA circuit. Will this work?
Reference 2 uses LPV812. However, should my feedback components be the same? or should i follow reference 1?
Any kind soul please help.
Thank you and hope to hear from you soon.
Regards
Daniel Lim
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INA148: The output resistance of INA148 ?
Part Number:INA148
Hi
I did not found the output resistance in the DS of INA148, where could I find the value ? I would like to detect battary 4.2V voltage, and using resistances to divide the 4.2 to the range [0v-2v] for AMC1211， and using stm32 mcu to detect the AMC1211's ouput (0-2v).
So, I am not sure the value of the divider resistance bettwen INA148 and AMC1211 .
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