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OPA2234 Input Overshoot during lightning event
HiI plan to use the OPA2234U single supplied (+12V) in an application to measure a temperature (PT100).During a lightning event (750V peak) the input filter limits the Voltage at the Input pins up to...
View ArticleSLAU502 -High Side Voltage to Current converter
Reposting in the correct Forum. Original request from Joseph St. Armour-------------------------------------------------------------------------------------------------I am looking at this circuit from...
View ArticleAD SSM2164 and NEC C4574G replacement/upgrades
I have spend the last year rebuilding cip amps and am finding VCAs and opamps are just going bad aside from caps drying out. Contending with finding replacements has been an issue as most of them are...
View ArticleOPA320 : Input impedance
To whom it may concern.Our customer want to know input impedance.There is no specification of input impedance in this datasheet but input bias current is specified.Can our customer assume input...
View ArticleAFE032 communication sequence
Hello,I am a student of the Friedrich Alexander Universität (FAU), Erlangen, Germany. I am doing a thesis with the sensor's department. I am working with the AFE032 which will receive commands from a...
View ArticleTLV246x output delay
Hi suppoer member,My customer want to use TLV246x.More than 1us output delay is observed at original circuit.However offset applied input circuit isn't observed such delay.What is the reason?Attached...
View Articlepls check my triangular-wave generator designed by guide of TI'S DOC, the...
my design follow the guidance of TI'S DOC:ZHCU066-June 2013 by John Caldwell,using TI 's comps OPA2365 and tlv3502;on my board, the jitter of tri-wave is so bad ,as a result,the backward PWM wave is...
View ArticleOPA130, OPA2130 Power Dissipation
Hello,What is the proper way to calculate power dissipation of the OPA130 (or the dual amplifier OPA2130 - I figure it's whatever the OPA130 method is and multiplied by two)?Thanks
View ArticleTechnical support
Good evening everyone!Congratulations to professionals of Texas Instruments!Appropriate a report on the Texas Instruments service experience.In july 13, 5:24:00 PM I requested 2 units LMP91000SDE /...
View ArticleLM331(V-F) Equivalent SMD Part
Sir, We are using LM331 V2F ,but we required LM331 equivalent smd part or any alternative part in smd package. please provide the availability of item.Regards,S.Geetha vani.TEMC.
View ArticleLMP90077 General Questions
Hi,I have questions about the LMP90077.1. The Resolution is 16 bit, which makes 0 - 65536 values. I want to use the device single ended. Now the datasheet Figure 71 shows that the MSB seems to be...
View ArticleOPA625 input bias and offset current in SPICE model
According to OPA625 datasheet the nominal input bias current in High-Drive mode is +2uA, and the input offset current is 20nA. While simulating the SPICE model of OPA625 in TINA-TI I've noticed that...
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Latent Failures of OPA2211AIDDA
Hi Apps Support,We are testing a custom Test Interface Unit that has several OPA2211 cascaded configurations. Originally the default test plan did not take into consideration the voltage follower...
View ArticleDoes anyone know the output noise voltage density of ina129?
Does anyone know the output noise voltage density of ina129? I want to calculate the output noise and compare it to ina188.
View Articleop amp internal input protection
I need an op amp with dual supplies 12V to -12V and has input overvoltage protection (30V to -30V) and also has protection against applying an input voltage before power up. Will OPA192 do it? If not,...
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PGA204 PIN Connection
Hello ，How should I connect the PIN1/PIN6/PIN7/PIN9 , if I don't need adjust the offset volatge of amplifier ?From the following diagram , if we need to leave it floating?It seems the part is very old...
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regarding noise in output of differential configuration of amplifier{OPA197}
i am switching voltage levels of 32 channel of a 32 channel multiplexers with the switching speed 20 ms/channel. The range of voltage is 0v to 15 volt.. 1st Stage: then after i am passing voltage...
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LMP7300 hysteresis problem
Hi , I encountered a problem when I used the LMP7300. As illustrated in the following Fig, LMP7300 monitors the bus voltage. I set the Positive Hysteresis is zero, while the Negative Hysteresis is...
View ArticleTL972 - output source current and output sink current
Hi allWould you mind if we ask TL972?The datasheet shows as follows;-Output sink current : 80mA-Output source current : 1.4mAIf the output voltage is -5V to 5V sin wave form like as audio, in case of...
View ArticleHelp finding an opamp for my application
I need an opamp which can meet following specs. Would someone suggest an op-amp?Zin: high (preferably above 20 kOhm)Zout: constant 50 Ohm. Driving 50 ohms input of the 12-bit ADC.freq. range: 100 kHz...
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