Forum Post: RE: XTR110 1-5V i/p
Hi John,There is a =24V regulated power supply. I have attached a 250E 0.1% resistor and I get approx 22V accross it (Approx. 83mA current). I have checked it for differrent voltages and the voltage...
View ArticleForum Post: RE: amplifing and filtering small modulation on big voltage
Hi Ronthank you very very much for your kind help.this helped me a lot.I have change r3 to 1meg because I have got fluctuating signal in high voltages and it seem to solve it.thank you very much for...
View ArticleForum Post: RE: XTR110 1-5V i/p
Here is a basic Tina simulation created by my colleague Collin Wells which should demonstrate the basic functionality.
View ArticleForum Post: RE: Hints and or suggestions in the use of the INA322 (circuit...
If you lift the INA322 output pin of the PCB (so it is not connected to the input of the MSP430) does the output remain at the negative rail? This would eliminate the MSP430 from the debug process. All...
View ArticleForum Post: RE: LM331
HI Eli,The circuit has 3 parts: V to F, Optocoupler, F to V. In what section does the problem occur?Some tips for making these type of circuits work are:Rs: Make this value between 12k to 16k....
View ArticleForum Post: RE: PGA280 GPIO as simple output
Helmut,You're first step is correct, it will configure the GPIO pins to outputs by writing all ones to the corresponding bits in register 8. However, I should clarify in your second step that writing...
View ArticleForum Post: RE: INA126 PA Strain Gauge Circuit
Thanks a lot Tim, that worked a treat!One further question: If I wanted to minimise the zero load output voltage, would I be best to increase the reference voltage to get that, or is there a better way...
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Forum Post: RE: Driving FET gate using TLV3501
Marek,Thank you for your answer and simulation file.I have more questions. To drive FET gate, I am going to use two pulses.one is made of inverting hysteresis comparator for high side and the other is...
View ArticleForum Post: RE: LMP8603-Q1
Hello Hideyuki,I'll try to provide some feedback to your questions.The max 1.5mA supply current specified in the datasheet would cover the whole range of temperature from -40deg C to +125deg C.The...
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Forum Post: RE: OPA320 Pspice model
by quiescence i found out that the problem does not occur when there is no negative feedback. so i simplified the circuit. which gives me this output:the error code is as following:**** 07/17/14...
View ArticleForum Post: RE: LMP91000 Working about 1uA Iuput Ozone sensor
Hi Domenicocan you provide me with the part number or datasheet of your Ozone sensor ? Ozone, SensoriC O3 3E 1 FPlease send your E-mail to me, then I'll send the datasheet.Which is source of the...
View ArticleForum Post: RE: INA826 input current during an overvoltage
Oops, I forgot to mention that it was a surprise to see a negative current coefficient. This is because I was initially assuming that INA826 uses mos depletion fets and a resistor across their...
View ArticleForum Post: RE: PGA280 GPIO as simple output
Thanks for the heads up. I'll watch for that. (((I read that section and it's still as clear as mud. It very poorly describes forcing a value in spite of configuring for /CS function, and doesn't...
View ArticleForum Post: RE: INA826 input current during an overvoltage
Dear Dimitrios,We used two PJFETs for the input current limit. PJFET is a "by-product" from our high performance BJT process. The main purpose is to limit the current to protect the input devices and...
View ArticleForum Post: RE: INA126 PA Strain Gauge Circuit
That answers my question perfectly Tim, thanks again.Regards,Tim J
View ArticleForum Post: INA122P - Gain Errors
Hi I am pretty new at this kind of stuff but get the basics of it. I am working on a project that requires using an instrumentation amplifier but I cant seem to get a correct value for the gain I set....
View ArticleForum Post: RE: LMP8603-Q1
Dear, Sergio-san. Thank you for your valuable and helpful information. I will refer that, Thanks a lot!!Best Regards,
View ArticleForum Post: RE: Nanovolt range amplifier
Beiefly, working at nanovolt levels will require at the minimum extreme thermal insulation to minimize temperature drifts. This is because resistor end-cap thermocouples and solder connection...
View ArticleForum Post: Regarding SPIO-4
HiI am using LMP91200 evluation board and SPIO-4 board for sensor test. In SPIO-4 board contain Spratan-6 XC6SLX16 (FPGA) and Atmel SAM3U microcontroller. These board connect to each other by GPSI 32...
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