OPA4343 Registration equivalent
Hi Forum,I am working with mass market customers and was wondering if we had an equivalent part for the OPA4343 that grants registrations.Thanks,Jay
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[ TLV2401 ] Output Delay
[ TLV2401 ] Output DelayHi,My customer has seen the long delay / propagation delay from input to output with TVL2401.Please see the waveform below.It's almost about 1.7ms, and slew rate is also really...
View ArticleLM2901 - Common mode voltage
Hi all,Would you mind if we ask LM2901?When we use following condition, how much is common mode voltage?<Condition>IN+: 2.5VIN-: 3.5VThe differential voltage will be 1.0V, but we cannot guess...
View ArticleLM2903 - Vicr
Hi all,Would you mind if we ask LM2903 Vicr discription/note(3) on the datasheet P6?Compared with LM2901, there is the difference between LM2901 and LM2903 as following.We guess that both datasheets...
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Can a DAC be used for op amp feedback?
I'm not really sure where to post this question, so I'll start here. We have a circuit we designed years ago using TL074 op amps. Currently, standard 10 turn pots are used to adjust offset and gain of...
View ArticleLPV521 CM range question
Hi all,I'm using a LPV521 nanopower opamp at Vcc=1.8V with its inputs slightly below the lower rail (about -25mV)The datasheet specifies common mode input ranges 100mV beyond either rail for Vcc =3.3V...
View ArticleLoad Cell Amplifier Needed
Hi. I am using a ELHS-T1E-AC load cell that gives a 200mV output. Can you recommend any of your products that can amplify the output to around +/- 10V with low noise?
View Article2nd order anti aliasing filter combined with correction table instead of 8th...
Dear All,Please suppose we want to design an anti aliasing filter with the bellow parameters:signal bandwidth= 1 kHzerror at 1 kHz= less than 1 %sampling rate= 11 kHzA/D resolution= 16 bits; -98.08 dB...
View ArticleInput pulse singnal to our equipment through SPIO-4 with LMP91050 evaluation???
http://www.ti.com/product/LMP91050LMP91050SDEVAL/NOPB : Sensor AFE Eval Platform for NDIR Applications (Evaluation Modules & Boards) SPIO-4/NOPB : Sensor AFE Digital Controller Board (Evaluation...
View Articleanalog switch for INA128 offset correction
Hello,For my thermocouple acquisition, I use an INA128 (gain=1000) and ADS1251 for A/D conversion. I want to add a switch between thermocouple and INA128, to wire alternatively the ground or the signal...
View Articleina114ap instrumentation amplifier
I am working on ina114ap but i am facing problem in changing the gain ,no matter what Rg resistance value i use it constantly shows 2.9v for vin+ =5volt and vin-=0volt.
View ArticleLooking for clarification on hysteresis on digital one-wire pin of PGA309
Hi, I'm using a microcontroller to communicate with the PGA309 and seeing some communicate and others not. With a 3.3V power supply the micro transmits a '0' at ~320mV. Now the datasheet on the...
View ArticleWhy LMP91051 cannot be used for Alphasense NDIR IRC-A1 sensor?
HelloI am working on to build my readout circuit for Alphasense NDIR IRC-A1 CO2 sensor. I found one posting saying thatThe thermopile output stage generates a voltage with a very low impedance (like a...
View ArticleLM91002 reference voltage
Dear Forum memersCould you please comment on the following?Using a LMP91002 with a supply voltage of 3.3V what would the ideal external reference voltage be assuming the use of a 3 terminal...
View ArticlePGA4311U
Hello, Can I know about the Thermal resistance values and Maximum Power Dissipation for part# PGA4311U ?Regards, Maruthi
View ArticleOPA2107 Dual Low Noise Amplifier - ESD rating
Hi,I need to know the ESD rating for the pins on the OPA2107. I could not find this information in the data sheet. Some op-amps have ESD information, for instance, 500 V charge-device-model (CDM). I...
View ArticleOPA381 power supply question
Hello,I am using the OPA381 to build a transimpedance amplifier for a calibrated photodiode from Thorlabs. The signal I am measuring is currently 1 kHz, but I may need to measure something as fast as...
View ArticleTLV274 550-uA/Ch 3-MHz Rail-to-Rail Output Operational Amplifiers
I want to know the basic difference between TLV274CPWR, TLV274IN and TLV274IPWR. Which amplifier specified from above should I use for the filtering of ECG/EKG signals?
View ArticleMultiple Inputs to INA126 (or equivalent)
Hi,I am working on a cost sensitive system where data from 3 transducer bridges is added and then sent to an ADC. If b1, b2 and b3 is the analog output of the three bridges, then the signal of concern...
View ArticlePGA309 output voltage
hello ti, i have design one PCB board which contain PGA309,and use this chip to generate voltage .but now one problem come out,that is the PGA309 output voltage is offen lost...
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