Hi Sumeet,
My recommendation would be the LMx34 family of devices, but the noise level of this device is in the pA range.
https://www.ti.com/product/LM134
If the LMx34 cannot be used in your application, I would recommend the REF54 or REF70 series voltage…
Hi Ken, please see answers below
The lot date on the parts is 2123+5. We are interpreting that date code as Year = 2021, Week = 23. Is that correct?
Ans: Correct
The part case (metal can) appears to have National Semiconductor's symbol on it (sideways…
Part Number: LM134 Other Parts Discussed in Thread: LM317 Hi,
I am working on a micro ohm meter. So do you have any ref design ?
For this I want a Constant current source for 1A,100mA & 10mA, Can you help me to design this type of source ?
Thanks for reply reply. I run the simulations with the following settings.
Vcc = 5 V
Vref = 2.495 V
Rs = 200 + 2200 Ohm (Assuming PT200 in place)
Iout calculated as 1 mA.
Solving R1 with Iout 1 = 1 mA, Vcc = 5 V, Hfe = 150, Ika = 10 mA
R1 = 500 Ohm.
Both…
Part Number: LM134 Other Parts Discussed in Thread: LM334 , , REF200 Hi,
I am currently working on a design that has an operating temperature spec of -40°C to +80°C.
For this design I need to use a current source to get a 5µA current. For testing…
Part Number: LM134 Other Parts Discussed in Thread: LM234 Hello guys,
One of my customers is considering using LM234 for their new products. They are looking for LM234 PSpice model for the consideration.
Do you have the model at the moment?
Your reply would…
Part Number: LM134
Hello
I need ultra high precision temperature sensor . I thinking to use the lm134 and calibrating it over the whale range using dry block calibrator .
Please comment .
Ahmed Shaaban
Part Number: LM134
Dear BU friends:
My customer developed BTS used LM134 for PT100 stable current source. But they tested the temperature drift is about 600ppm/C. They used the 25ppm high precision resistor. Could you please check the schematic?
It…
Part Number: LM134 Hello,
I am looking to model a circuit that uses the lm134 part in ltspice but it seems like there are no models. Are there any suitable replacements that can be modeled?