Switching the Gain for the Ins. Amp INA188
Hi,I am using INA188 to amplify a signal by 10 and 100 by using two different gain resistor value. I found using rely will not always give the same contact value which will change the gain value. The...
View ArticleFrequency to voltage converters
I am looking for frequency to voltage converter IC to use in our application.Our max frequency is 50HzThe output voltage range can be +/-10V or 0 to 10VPower: we have some options up to 15VDC.I did...
View ArticleTraining Videos
I just came across the "Low Distortion Design" series of videos (TiPL1321). They list "Noise 1-3" as prerequisites - TiPL1311-1313. Where do I find these videos (TiPL1311-13)? They are not in the list...
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INA110: about VNOISE RTI
Hi all,Could you please tell me about the following formula?What is "Vn input"?Is "Vn output" the total output noise ? Thanks in advance.Regards,Toshi
View ArticleOPA1611/OPA1612/OPA1622/OPA1688 Feedback Architecture
Hi,Which architecure of the voltage feedback amplifier and the current feedback amplifier are the following parts ?<Audio Operational Amplifiers>OPA1611(bipolar input)OPA1612(bipolar...
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How to maintain stability of a TIA when exceeding the open loop gain
What is the open loop gain limit that I must stay below for stability when making a transimpedance amplifier with an op amp? Why am I allowed to exceed the open loop gain? Why does the gain limit of a...
View ArticleRegarding Negative Input of (-0.1V) to Single Ended (+15V as positive supply...
What will be implications of applying -0.1V to an inverting amplifier (single ended) LM124 with gain of 50? Is it possible to get +5V output?
View ArticleTLV3201 Spice Model
Hello,I am currently working with Microcap 8 software, and i need to simulate the TLV3201 comparator.While i am importing the spice model, an error occur caused by the encrypted spice model.Can you...
View ArticleHelp with choosing the right OpAmp
Hello there!I am a chemistry master student and I am currently working on the development for a photoacoustic gas sensor to detect trace amounts of CO2 in the environment in a company. As I am...
View ArticleSingle supply operation
Hi TI expertsI would like to use the chip DRv135 from TI for an analog application.Could I use the DRV135 in single supply operation?It is specified for +/- 15V.Can I apply 28V dc to positive supply...
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XTR117 Problem with functionality
Hello,I am using XTR117 device trying to implement the circuit described in Figure 9 of the RCV420 datasheet (the following one). The part of the RCV420 and ISO122 is exactly THE SAME as the above...
View ArticleOPA314 - the measurement of En(Input voltage noise density)
Hi allWould you mind if we ask OPA314?Our customer mesured En and there was some difference between the datasheet and their measured value.-Measured value : 20～21nV/√Hz（1kHz～10kHz）-Datasheet :...
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TLC555 at 1Mhz
Hello,i have to generate 1Mhz signal. For do that i'm using a TLC555 (that can reach 2Mhz max) with Ra=1kohm, Rb=6.8kohm and Ct=100pf. The problem is that the circuit generate 500khz signal and not...
View ArticleLMP7721 Tina TI Noise Simulation
Hello, I'm simulating a simple transimpedance circuit with the LMP7721. The simulation runs fine and graphs the data appropriately.My question lies in the data generated, when I export the graphical...
View ArticleOPA4172 Iq current issue
Hi~ I got an issue report about OPA4172 Iq current from our customer.One of our customer is using OPA4172 as voltage follower and application is test board for display controller.Structure is as...
View Articleconnecting LMP91000 with the cc2541
Hi there. Im trying to connect the LMP91000 potentiostat to the CC2541 for a blood sugar sensor response, using the IAR embedded workbench to debug the code and the Smart RF Flash programmer to flash...
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LM358 output voltage level
I'm running a simulation of the AC coupled non inverting amplifier appearing in the LM358 datasheet but i can't get an output greater than 300 mv ¿Why? ¿Is it posible to obtain a higher output?...
View ArticleLMV393 VCIM range vs output status
Hi,About VCIR of LMV393, please let questions.The LMV393 use with Vcc=+5V.From the data sheet(SLCS136T), VCIR (Common-mode input voltage range) is specified in the -0.1V to +4.2V.To us IN- (4pin)...
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About LMV824Q1MTX/NOPB.
Dear Sirs1.Could you provide the model for NI AWR tool about LMV824?2.Could you provide the following information about LMV824?M DC voltage gain (factor) ?R1 (-) terminal input resistance ?R2 (+)...
View ArticleLMP91050 quad thermopile
Customer is looking to use the LM91050 chip. Knows it is for a single thermopile. Wants to know if there is a way to use it as a quad thermopile. Is there another part that will do this?
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