• RE: AD7780 clock

    Hi, 

    Yes, the minimum is 100ns which means the maximum SCLK is up to 5MHz only. So 134ns should be okay as it will not exceed 5MHz SCLK. 

    Thanks,

    Jellenie

  • AD7780

    Started testing a new load cell and noticed that ADC results were odd:

    Weight (kg)    AIN (mV)   ADC 24bits (hex)

    2kg                    3.7mV               009752F0

    4kg                         6.3mV          00FFEC90

    4.1kg                    6.4mV            0082B118

    Above 6.3mV the codes appear to drop (excitation voltage is 3.24V).

    So looked…

  • AD7780 non-ratiometric usage

    Hello,

    I'm wanting to use the AD7780 in a non ratiometric configuration which means that Vref does not equal AVDD. Page 3 of the datasheet says that the  Differential input Voltage Range = +/-Vref / gain when the assumption is that Vref = AVDD. Does…

  • AD7780 BPDSW Pin

    Hello

    I'm not sure if I got function of PDSW right. In datasheet and reference designe the IN- of Load cell is connected to PDSW.

    In the schematic of EVAL Board this isn't the case. What is the advantage if I connect the IN- Pin to PDSW?

    If I…

  • AD7780 Output Code Format

    Hi dear,

    I am using AD7780 24-bit ADC for reading loadcell. But, not find the 32-bit output  value format of AD7780 in datasheet.

    And I am need data/clock timing information.

    My code is below. Where is wrong?

    //-----------------------------------…

  • AD7780 only one conversation.

    Hellow. I'm reading data from AD7780. But I can read only once. Help me pls. The PDRST pin is always "ONE".

  • AD7780 vs AD7781 - load cell excitation

    Having studied the datasheets / user guides would like to clarify a few points:

    1) The difference between the AD7781(20bit) and AD 7780(24bit) appears to  be
    that in the AD7781 (20bit) 4 empty bits are appended such that the
    communication…
  • ad7780 evaluation software install

    I am using XP 32 bit and have administrator privileges but I click setup and nothing happens.  downloaded software instead of using CD and same thing.  I see 32 and 64 bit files in the install folder.

  • EVAL-AD7780 weigh scale board

    Having studied the datasheets / user guides would like to clarify a few points:

    1) The difference between the AD7781(20bit) and AD 7780(24bit) appears to  be that in the AD7781 (20bit) 4 empty bits are appended such that the communication length is equivalent…

  • AD7780 Voltage Sequencing and Analog Input Voltage

    Hello,

    I'm wondering if the AD7780 can use any voltage power on/off sequence without damage. I'm also wondering if voltage can be applied to the analog input pins while all or some of the power supply voltages are not powered.

    Pins in question…