Other Parts Discussed in Thread: LMP2011 Hello,
I have been trying to verify the open-loop gain in the LMP2011 datasheet in simulation, but I'm unable to do so. I tried unsuccessfully to simulate it in TINA, but did use PSPICE. The gain looks good…
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:…
Hi Raymond,
Sorry, I was not available. So could not reply to you.
Yes, I want to integrate current for 100 msec. Current will ramp up from 0 to 25 uA in 50 sec. There was a mistake in the transient current injection in the circuit.
I will use LMP2012QML…
Hello Shinu,
The LMP2012 is a chopper amplifier, so the input pin conditions are dynamic. The discussion in the LMP2021 datasheet is applicable to the LMP2012.
http://www.ti.com/lit/ds/symlink/lmp2021.pdf
Note that the pspice model for the LMP2011 can…
The radiation data raises more questions. The LMP2011 Pspice model has open loop gain of 98db. The LMP2012 radiation report is showing open loop gains start around -140dB. Why the negative sign in the gain data? Ignoring the negative sign why is gain…
Part Number: LMP2012QML-SP Other Parts Discussed in Thread: LMP2012 , LMP2011 Hello
Is there a P-SPICE model for simulating the output change according to the temperature change in the below device?
LMP2012QML-SP
Best regards.
Part Number: LMP2012QML-SP Other Parts Discussed in Thread: TINA-TI , LMP2012 , LMP2011 , Tool/software: TINA-TI or Spice Models
I have recently resimulated a circuit at 3.3V that previously worked at 5V and found it to not simulate properly.
On investigation…
Due to the nature of the chopper inputs, the input bias current is not constant. The input MOSFET chopping stage creates “dynamic” transient currents on the inputs due to charge injection. These will swamp out what we would call actual “bias current…
Other Parts Discussed in Thread: LMP2014MT , LMP2011 Hi
I Could not find a spice model for the LMP2014MT opamp. Is there a spice model for evaluation?
Thanks
Jonathan
