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wien bridge sine wave oscillator
Greetings. Im raj from malaysia. im a student. Im having trouble with wien bridge sine wave oscillator. I have upload my circuit and the simulation result using multisim software. i didnt get the sine...
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Powering and Reference adjusting of Instrumentation Amp
hello, I have an application. It is a loadcell conditioning circuit. I use an A/D converter module which accepts signal +/-10V range. Therefore I need to amplify my loadcell signal to +/-10V range.I...
View ArticleLM741 and INA114 - Sensitivity
Hello, This is my first post so I hope I ask the right questions! Both questions are for the LM741 and INA114:1. Can they take in a signal of 0.2-0.5uV with 30-500Hz BW? 2. If they can, will it distort...
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how to remove 2Volt offset?
I have a strain gauge application and I use instrumentation amplifier (INA 125) to signal conditioning. At the output of INA I have an offset of 2 Volt.Do you recommend a circuit for removing the...
View ArticleLOG112 vs. LOG114 Response Time
Hello,I'm using the log 112 as a current sensor. I set I2 to 70.7nA as the reference current, and my input current I1 varies between 100pA and 50uA. I'm finding that I need a compensation capacitor...
View ArticleDifference between IDD and Is Current in Operational Amplifier
Hello, May i know the Difference between Supply Current IDD and Is that is in DataSheet. And it is belonging for single Channel or Device.
View ArticleThermal transient behavior of INAs and OPAs
Hi,May I know more info. on thermal transient behavior of INAs & OPAs (specifically INA331). Because in one of our amplifiers we experience higher overshoots of the output during the temperature...
View ArticleINA2332: huge gain difference
Dear ladies and gentlemen,I'm using your INA2332 amplifiers in an application with 8 load cells (with 260 Ohm strain gages).The gain is set to 1000 with Rin=5k1; Rf=1M on all amplifiers, supp....
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OPA4344 / Input offset voltage
Hi,Our customer has understood about the behavior/specification of OPAx344 as following description.It seems they referred "Fig.2 - Simplified schematic" on the datasheet -page9. - OPAx344 has 3...
View ArticleWireless Mobile Charger
I needed 18V 1A 100KHZ sinewave signal. How to get this ? Now i am using a 55 timer for generating 100KHZ but the output current is very low so how to get high output current... Please help me soon
View Articlewhat MWC MCD0950A represents to?
Hello,In the Part LM2904 MWC MCD0950A, may i know what MWC MCD0950A represents to?. Shall i take the Die Size in the link http://www.ti.com/lit/ml/snao363/snao363.pdf for LM2904M part number. And in...
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low input bias current Op-amp for accelerometers' charge amplifier
Dear experts,I am designing charge amplifier cuicuit to convert charge to voltage output for accelerometers' aquisition circuit.Sensitivity of the charge amplifier is 10pc/g. I want a sensitivity of...
View ArticleHelp with INA333 ECG Circuit
(Please visit the site to view this file)I've attached the TINA-TI circuit I've been working on. Im no expert in the electronics field or the medical engineering so I am having a hard time figuring out...
View ArticleTwo Thermoucouple circuits interfering with each other
Hi I have a circuit board which has inputs for two thermoucouple K_type clamps. They are fed into two seperate INA126 amplifiers that run off +5V. The front end is biased to 2.5 volts to keep the...
View Articleload cell signal conditioning
Hi,I am in the process of designing loadcell. . I am using a Wheatstone bridge circuit to detect the difference in my voltages with the weight differences. I am using two strain gauges both 350 ohm...
View ArticleLM4041
Is the LM4041BIDBZR usable as an op-amp similar to the traditional TK431? If so, what is the small signal Vka/VFB gain vs frequency? Are there curves/charts available?Thank you!
View ArticleThree-phase sine wave generator circuit
Dear friends,i need your help. can anybody provide me three-phase sine wave generating circuit using only discrete components such as op-amp,resistor,diode and so on.I want 50Hz one.TQ
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Three phase sine wave using TL082
Good afternoon, How to generate three-phase sine wave using TL082.If anybody having idea or suggestion please share with me.I have try but in simulation i gt the result but when aftr i try with...
View ArticleXTRxxx 4-20mA for digital data transmission
I need to transmit a 120Hz digital signal over 1000ft in an outdoor environment.Voltage pulses are affected by noise and voltage drop down the line.Current pulses would be more immune.Do you have any...
View ArticleOPA2277UA, DRIFT
Good morningI use a OP OPA2277UA in the configuration load cell shown in Figure 3 of the datasheet. since the two OPs in the same houses, the drift is compensated?Thanks
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