Hello,
I have custom CC2540-based device that has external reference voltage (VREF) connected to AIN7.
The reference is a 2.5V shunt (TI part #: LM4040AIM3-2.5/NOPB).
The voltage I am measuring on VREF is 880mV. What? It should be 2.5V and I do…
Part Number: ADS1258 Other Parts Discussed in Thread: REF6041 , Hi,
In the datasheet it is mentioned that when exiting SLEEP mode there is a small current consumption from the VREFP/N inputs. since I am using LM4040-4.1V for the reference with required…
Part Number: LM4051-N Other Parts Discussed in Thread: LM4040 Good day it turns out that the DAC - MAX532 , I am using using requires a negative voltage to give out a positive output voltage. I opted for just swapping the + and -ve terminals while testing…
Other Parts Discussed in Thread: LM4040 , LM4051-N , REF1112 As 3.3V systems get more common I am interested in LM4041A12ILP to test the reference and the design on breadboard. Is there any information when will it be available in TI WebShop?
Part Number: ATL431 Other Parts Discussed in Thread: TL431 , LM4041-N , LM4040 Hi,
I want to use the ATL431 for a 4V reference, and from the datasheet Fig 14 and 15 it seems that there will be some cases where it will be unstable.
The cathode current…
Part Number: LM4050-N-Q1 Other Parts Discussed in Thread: LM4040 Hello,
I am using a LM4050QAEM3-2.5/NOPB 2.5V voltage referenz in conjunction with an opamp (single supply 12V) as a current source for 1.1mA. See schematic attached. This current is consumed…
Hey Dan,
LM120K-5.0/883 is indeed obsolete. I've attached the PDN.
We don't have an exact P2P replacement so I'd recommend the UA79 series as the closest alternatives.
~ Aaron
PDN 200824.pdf
Hello Penny,
The LM4040AIM3x-2.5/NOPB is the DBZ package which is on page 64 of the datasheet.
http://www.ti.com/lit/ds/symlink/lm4040-n.pdf
Best, Michael
