• RE: LTC2312 Internal Reference - Long-Term Stability


    There is no long term stability data available for the LTC2312 internal reference. If this is important to you I would recommend using a different ADC that supports using an external reference with specified long term stability. An example would be…

  • LTC2312-12 Output signal issue


    Our customer has an issue about output signal of LTC2312-12. Could you please support me?

    The customer has used LTC2312-12 in their products. The output signal of TC2312-12 is fixed to Hi level or low level approximately one out of dozens of…

  • Electrical Characteristics of LTC2312-12


    I don't understand what Absolute Input Range in LTC2312-12 data sheet as follows mean. Please let me know.



  • LTC2312-12 SDO MSB No toggle


    We use LTC2312-12 and supply CONV and SCK by FPGA.

    Our environment setup:
        VDD    : 3.3V
        V_REF: 2.054V (measured)
        OVDD : 3.3V (from our FPGA)

    According to Page 14 Figure 11 in datasheet, our A_IN and output code follow the tendency when A_IN is under…

  • LTC2312-12 Exiting Nap Mode


    I have a question about SCK timing for exiting NAP mode. According to the datasheet, we should send a pulse on SCK showing Fig.8 on the datasheet.

    Can I exiting NAP mode if I send the pulse like a following timing?

    Best regards,


  • LTC2312-12 CONV pin pull-up/down


    Can we add 1k ohms or 10k ohms pull-up or pull-down resistor to CONV pin? Are there any problems to LTC2312-12 in that case?

    Best regards,


  • How to set LTC2312 Using the External Reference?

    I can not find how to set LTC2312 Using the External Reference in datasheet, and find  By default, REF is an output pin and produces a reference voltage VREF of either 2.048V or 4.096V depending on VDD.

  • LTC2312-12 Rising edge timing of CONV & SCK


    According to the datasheet of LTC2312-12, it is recommended to hold SCK static low or high during tconv.

    Are there any problems if the rising edge of CONV and the rising edge of SCK is same timing?

    Best Regards,


  • LTC2312-12, the SDO is always Hi-Z?


    Our customer give us the question why the SDO output is always Hi-Z regardless of the signal level of CONV after power on.
    According to the data sheet page10 of LTC2312-12, the SDO output is always forced into the high impedance state while CONV is…

  • 2011-01-10 14:14:47     workqueue

    2011-01-10 14:14:47     workqueue

    Chris Brissette (UNITED STATES)

    Message: 97302   

    I have been hunting a random lockup, happens about once a week. Seems like it has something to do with the using the ttybf1 uart.  I have been looking to where workqueue…