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Problem with AFE4490SPO2EVM GUI V2.0 Firmware Upgrading and .exe running
Dear Authority,I want to use AFE4490SPO2EVM GUI V2.0 software program for SPO2 application. My windows software is Windows 7 professional. I installed the software AFE4490SPO2EVM GUI V2.0 and usb...
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Question of LM258A operation?
Hello,I have a question from customer schematic>Application : DAB & FM radio module board>part : LM258A>Problem issue :Customer selection point is low price and replace of...
View ArticleLMV604/Maximum value of Input bias current
Hi all.Could you tell me maximum value of Input bias current about LMV604?The reference data is no problem. In addition, LMV344 is listed the input bias current(max), but LMV604 isn't listed it.Please...
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XTR110 enable/disable circuit
Hello. My circuit uses a XTR110 to translate a voltage signal from 0-10V to 4-20mA, using the basic circuits from its datasheets, with a P-MOS at the output to drive the load.I need that the output...
View ArticleOPA171 - the improvement of phase margin and gain margin
Hi all,Would you mind if we ask OPA171?We simulated the phase margin and the gain margain on Tina-TI following files.(using Middlebrook method)(Please visit the site to view this file)The value of...
View ArticleXtr 115 p channel mosfet
I m working on a project for generation of 4-20ma using xtr111. The problem is that I m not getting the p channel mosfet mentioned in the datasheet.So is there any other alternative to this mosfet....
View ArticleOPA1644 SPICE model problem
Hello, I’ve tried to download the PSpice model of OPA1644, and run a simple simulation in Altium. But it always stops, and gives an error message:XSpice Error: Syntax error in expression on line: 182...
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OPA4188 SR Limit
I'm wondering if someone can help me why our OPA4188 is showning SR limits of about 80KV/S (0.08V/uSec) instead of the specificaiton of 0.8V/uSec typ?My circuit is a differential input gain of one...
View ArticleOPA320 Current noise deviation
Dear SpecialistsMy customer is considering OPA320.He want to know the deviation of current noise.According to the datasheet, It is 0.6 fA typ.But max and min value is not described.How much is it over...
View ArticleAMC1100, Fixed Gain Error?
Hi,I use AMC1100 to measure high-AC voltage on 60Hz, all phases+neutral, as per attached schematics (please look below).To do preliminary tests, I used a waveform generator to apply 50mVpp/60Hz/sine...
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3-wire 4-20mA using XTR115
I am thinking to use XTR115 for a 3-wire 4-20mA system as follow, will it be all right?I prefer XTR115 over XTR111 since it requires much less external components.
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Question or low side sensing
Hi All,Our customer is looking for the solution of low-side sensing for 3 phase motor. Then please let me ask following question.Does IN+ of current sense amp need to have over 72V Common-Mode...
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INA125U not amplifying per the datasheet
Hi,I have a INA125U connected to an light detector. The detector is reading a pulse from an LED emitter. I'm attempting to amplify the signal 18.3X using a 4.2Kohm resisitor for Rg. Schematic is...
View ArticleOPA365/OPA2365 input offset drift voltage by temperature
Hello guys, Could you give me your help? My customer wants to know storongly how much input offset drift voltage of OPA365 (50MHz, Low-Distortion, High CMRR,RRI/O, Single-Supply OPERATIONAL AMPLIFIER)...
View Articlerecommended op amp to buffer as close as possible to ground rail, 24 V supply
I have an application for a 0 to 5 V signal output buffer for industrial control. Load is about 1 k to ground. In this industrial control application, power is a 24 V single supply.What amp can...
View ArticleLM675 heat generation problem
Hi - I'm running a pair of LM675's as a differential output driver at 70 khz at up to +/- 20V peak sinewave output from +/- 24V supplies. Each is running at about 23db gain closed loop so there...
View ArticleInquiry for OPA2192
Does OPA2192 support flow soldering or not?Best RegardsTakanori Yuzawa
View ArticleLT1013 ESD internal diode
Hi TI people,Regarding LT1013 datasheet and more precisely op amp schematics within page 3, could you tell me if there are ESD internal diodes not indicated between output, IN-, IN+ and power supplies...
View ArticleStrain Gauge measurement with ADS1248
Hi,I have to measure strain & circuit is attached.1. SG nominal = 1000 ohms , with min = 900 ohms during compression & max = 1100 ohms during tension.2. I have used R5 to generate Vref for...
View ArticleHigh side, High CCMR AC and DC current monitor
Hello:I need to design a high side current sensing solution capable of handling 132VAC as well as 24 to 48 VDC in the range of 0 to 500mA.What is the best product solution for this?
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