Other Parts Discussed in Thread: LM4140 , LMP90080 Hi,
I am using 4 lmp90080 to measure 16 channel temperature using themocouple. For Vref I want to use lm4140.
My doubt is that one lm4140 is enough for 4 lmp90080 or i have to use 4 lm4140 is required…
Part Number: ADS1256 Hello,
For our tests we use the ADS1256EVM connected to a microcontroller. We would like to measure as precisely as possible a signal witch can vary between 1.024 and 2.048 volts.
In order to measure this signal we have connected…
Other Parts Discussed in Thread: LM4140 Hello,
1) I just wanted to double check something with TI designers of LM4140. Looking at the datasheet for the LM4140 reference IC, it seems that the output impedance vs frequency graph (figure 8) starts from a…
Other Parts Discussed in Thread: ADS1255 , LM4140 , REF5025 , OPA350 Dear TI team,
We need your help on the following. In our design, are planning to use LM4140 to drive the reference pins for ADS1255 and wanted some help from TI to identify the right approach…
Other Parts Discussed in Thread: ADS1247 , ADS124S08 , REF200 , LMP2011 , LM4140 , INA317 , TLV333 Hi,
I'm looking for PT100 frontend analog circuit ICs for -10C to 140C temperature measurements.
Can you suggest on ICs?
Precision current source
Mux: 2:…
Yes, it's certainly withing range/spec. Just to be clear we're reading in binary offset, supplying an AC signal and it reads 0 (-V FSR ) all the way. We're using an external REF LM4140 at 1.024V. https://www.ti.com/lit/ds/symlink/lm4140.pdf
I would…
The reason I did not recommend the LM4140 is because it only works from 0C to 70C. The ADS1271 is usable in a longer temp range. If this ADC is only going to have a ambient temperature between 0C to 70C, you can use LM4140.
I prefer the REF50 due to the…
Part Number: AM4376 Other Parts Discussed in Thread: LM4140 ,
Hi,
i want to improve the accuracy of the ADC measurements and plan to use an external reference voltage like LM4140ACM.
Do i need to use a buffer between the external reference and the VREFP…
Hi Ben,
1. Why does circuit 1 use 2x LMP 7721 and circuit 2 only one? I know that this is possible to reduce costs because the LMP7721 is quite expansive, but what is the advantage of using the LMP7721 to generate the offset voltage compare to using the L…