• Example c code and register definition to read data from LTC2991?

    Dear all,

    Is there any c code to read from LTC2991 provided for user porting MCU quickly?


  • DC590B with LTC2991 board "Cannot load COM module for device" on Windows10

    Dear All,

    Use DC590B board connected with LTC2991 Demo board, and plug USB cable on Windows10,

    it shows message below


    it says that DB590B and its software works with LTC2991 demo board

    How to solve it? Thanks.

  • LTC2991的应用问题







    如下图中 15.54mA/LSB 是怎么计算出来的,我计算的值是15.26mA/LSB=19.075/0.01*8

    3、选用LTC2991采集电流(12V供电)的应用时,对分压电阻的选择,以及PCB layout有什么注意事项吗…

  • LTC2991 I2C VIH ?

    Can the LTC2991 properly detect the I2C transactions (voltage levels) if the I2C SCL and SDA lines are pulled up to 3.3V while the device is being supplied (Vcc) by 5V?

    Per the datasheet, the minimum I2C VIH is 0.7*Vcc, which will be 3.5V in my application…

  • ltc2991 not sending back data

    I am trying to read data from ltc2991 sensor through i2c. My master sends the slave address 0x90 (write), 0x91 (read) and trying to read data from memory location 0x0B. 

    I have received ACKs from the slave, however, it always reads 0x00 for the data. 

  • ltc2991 with Spartan-6 (FPGA)

    I'm wondering if anyone has tried to integrate the ltc2991 to FPGA. (I am planning to read only the temperature from the sensor and my master will be Spartan 6)

    I know it is communicated through I2C, however I have no experience with I2C on Verilog…

  • ltc2991 error detection

    Are there any build-in error detection for the ltc2991? Say if I send the wrong memory location or if the connection is not successful through I2C, is there any way I can know that? 

    (My master will be FPGA)

  • LTC2991 Octal I2C Voltage, Current, and Temperature Monitor : Detecting Diode faults


    I am working on the firmare for a system that uses the LTC2991 for temperature measurement.  I am adding support for detecting remote diode faults (open, short, reverse fitting).

    The sense diodes are connected to V1 and V7, so I should be able to…

  • LTC2991 current measurement with voltage divider


    I am studying the following voltage divider circle in LTC2991 for current measurement. I have a question for the current measurement LSB value. Appreciate any advice.

    As I understand, the voltage divider will divide differential voltage in 0.01 ohm…

  • LTC2991 Current Measurement Problem


    I am trying to read motor arm currents using the LTC2991 IC. But I have encountered some problems as follows:

    I can read the battery voltages in single-ended mode. However, I always have an offset value when reading currents in differential mode…