I am studying the use of MLP92064 in my Design. I need to know if I can use differents voltages on the pins: VDD and VDIG.
All examples I've seen use the same voltage on these pins.
I must use 5V on VDD and 3V3 on VDIG. Is it possible?
Other Parts Discussed in Thread: LMP92064 Hi
I have assembled my power supply PCB with LMP92064 IC.
My requirement is as below:
1) Current and voltage is to be monitored on an isolated supply which powers my PCB: +28V and +28V_RET
2) IC is being…
Hi Micha,
The LMP92064 has a 4-wire SPI interface: CSB (active-low chip-select), SDI (data input), SDO (data output) and SCLK (SPI clock input). If the Raspberry Pi has a similar SPI port on-board that you can use, then the communication should be…
Using a 0.5 ohm sense resistor the voltage difference between INCP and INCN increased to 0.045mV. The output gives me all 0's in this case, even for the chip ID which was working earlier. I feel that the chip is not powered up somehow, which gives me…
Hello Xavier,
The LMP92064 is unidirectional and cannot sense negative differential voltages across its pins... the digital output will clip to zero.
There is no problem with the proposed common-mode range... -60 mV is well within its -200 mV lower…
Part Number: AMC1350 Other Parts Discussed in Thread: INA290 , LMP92064 , AMC1311 , AMC1301 , AMC3330 , AMC1302 , AMC3302 Hi Team,
Our customer is considering the AMC1350 for high voltage measurement and would like to confirm if it fits his application…
Hi Vignesh,
None of our current shunt monitors are able to monitor currents in the microamps range. The LMP92064 won't be a good fit for your application.
For small currents like this I would recommend you get in contact with the precision amplifier…
Other Parts Discussed in Thread: LMP92064 I've got an EVAL module for LMP92064 current sense IC. I tried to configure the IC with SPI signals from my FPGA board, but with little success.
Made the setup as said in the EVM user guide.I have written 0X18…
Hello Henry,
The INA233 has an input input bias current of 8µA which would cause it not to work for these low currents. If you are sensing the low side current you could use the LMP92064 but the input VCM is limited from -0.2V to 2V.
If you do not…
