Working with a LTC2606CDD#PBF 16 bit DAC. I cannot get any voltage out. I found this library https://github.com/rambo/I2C

I2C scan reveals.

Master Address 0x73
Slave Address 0x10

Here is my code.

#include <I2C_16Bit.h>
#include <Wire.h>

// Put your own I2C address here
#define I2C_ADDR 0x10

// Your register address, which can be found on your IC's datasheet

void setup() {


void loop() {
    I2C_16Bit_writeToModule(I2C_ADDR, DATA_REGISTER_ADDR,0XFFF);
    uint16_t registerData = I2C_16Bit_readFromModule(I2C_ADDR, DATA_REGISTER_ADDR);

    Serial.print("Register data: ");

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  • 1
    maybe the DAC is not connected correctly ...ease show your connections ... please add a clear, answerable question to your post... update your question ... do not use comments
    – jsotola
    Mar 16 at 18:00
  • Why are you provide a link to a library that you never use and yet in your sketch you use another library?
    – hcheung
    Mar 17 at 5:29
  • Did you read the datasheet of [LTC2606CDD](LTC2606CDD)? based on figure 3 and table 2 in the datasheet, how you come out the code for I2C_16Bit_writeToModule(I2C_ADDR, DATA_REGISTER_ADDR,0XFFF); and I2C_16Bit_readFromModule(I2C_ADDR, DATA_REGISTER_ADDR);? It simply doesn't match any operation of the chip.
    – hcheung
    Mar 17 at 5:31


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