• LTC2662 questions


    I'm using LTC2662, but I think It is not working.

    My problem is the dac always return open circuit flag, when I write data ( actually next step )

    In my initial code, I just set config reg all 0, span 25mA . After that I write data through uart…

  • RE: LTC2662 16-bit. Maximum Daisy-Chained Devices

    Yes, you should be able to daisy chain 40 devices, each device just drives the next device, so it should be possible to daisy chain an infinite number of devices. 

  • LTC2662 question?

    Dear Sirs,

    Q1.The LTC2662 has 5 current sources. If I only use 4, can another VDD not be connected?

    Q2.Is the VDD supply voltage operating at 3.3V and the current output to 300mA?

    Q3.Can VDD and VCC be connected to the same voltage?

    Q4.If the VDD supply…

  • LTC2662 FAQ

    Q1: Can the outputs be connected together to sum the currents?

    A1: Yes, any or all of the outputs can be connected together to increase the current output.  Since the outputs are current sources no additional circuitry, like a resistor, is require to sum…

  • LTC2662 - Toggle function


    I'm planning to use the LTC2662 as a LED driver. I need to be able to pulse LEDs ON/OFF and was planning to use the toggle function for this purpose. 

    From the datasheet, it seems the toggle function only works for the DAC code registers (and…

  • LTC2662 Thermal informations

    I read the data shet of the LTC2662

    And did not find any thermal info about this chip??

    Its very important; with five output at 300mA and 1V dropout (min.), the chip will dissipate 1.5W !!!

  • LTC2662 Daisy chain


    Trying to drive two LTC2662/12-bit DACs in a daisy chain configuration and running in to issues.

    I am sending 64 bits:




    • Is that a valid frame format?
    • I am keeping…
  • LTC2662 with proportional solenoid valve

    I want to use the LTC2662 to drive small (<50mA, >250Ohm) proportional solenoid valves.

    Due to the inductive nature of the load, is it recommendable to use
    a) a capacitor in parallel to compensate step-increases in current?

    b) a fly-back diode?


  • LTC2662 maximum dropout voltage?

    Please help provide LTC2662 200mA & 300mA Range; (VDDX – V–) = 3.13V maximum dropout voltage?


  • LTC2662 parallel outputs across daisy chain


    I have multiple LTC2662's in my design and the communication is daisy chained. 

    If i need 500mA output on a load I understand that I have to connect 2 channels in parallel. If i need total of five 500mA channels what is the recommended configuration…