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ADS1278-SP: IBIS model not matching package pinout

Part Number: ADS1278-SP

Team, am working with a customer on this device. The IBIS model loaded for the -SP device is for 64 pins (matching the commercial device), but the space device is an 84 pin package. How do we get a 84-pin model that matches the space device? Thanks in advance. 

  • Hi Kannan,

    The two versions of the device are very similar, and I believe the IBIS model was simply copied from the commercial package version for this reason.

    I will check to see if we have any additional data regarding the 84 pin package characteristics, but at this point, I am not sure we can provide any updates to the model that already exists.

    Regards,
    Keith Nicholas
    Precision ADC Applications

  • Hi Kannan,

    Here is the updated pin list for the 84 pin package.

    Regards,
    Keith

    [Pin]      signal_name      model_name     R_pin                    L_pin                     C_pin

                                                                                   

    1              AINP2                   analog                   6.50E-02               5.38E-09               3.00E-13

    2              AINN2                   analog                   6.30E-02               5.25E-09               2.90E-13

    3              AGND                   GND                      5.90E-02               4.90E-09               2.50E-13

    4              AINP1                   analog                   6.20E-02               5.13E-09               2.80E-13

    5              AINN1                   analog                   6.00E-02               5.04E-09               2.70E-13

    6              AGND                   GND                      5.90E-02               4.90E-09               2.50E-13

    7              AVDD                    POWER                 5.90E-02               4.95E-09               2.60E-13

    8              AVDD                    POWER                 5.90E-02               4.95E-09               2.60E-13

    9              AGND                   GND                      5.90E-02               4.90E-09               2.50E-13

    10           AGND                   GND                      5.90E-02               4.90E-09               2.50E-13

    11           AGND                   GND                      5.90E-02               4.90E-09               2.50E-13

    12           DGND                   GND                      5.80E-02               4.87E-09               2.50E-13

    13           TEST0                    input                     5.80E-02               4.85E-09               2.40E-13

    14           TEST1                    input                     5.80E-02               4.85E-09               2.40E-13

    15           CLKDIV                 input                     5.80E-02               4.87E-09               2.50E-13

    16           _SYNC                   input                     5.90E-02               4.90E-09               2.50E-13

    17           DIN                        input                     5.90E-02               4.95E-09               2.60E-13

    18           DOUT8                  output                  6.00E-02               5.04E-09               2.70E-13

    19           DOUT7                  output                  6.20E-02               5.13E-09               2.80E-13

    20           DOUT6                  output                  6.30E-02               5.25E-09               2.90E-13

    21           DOUT5                  output                  6.50E-02               5.38E-09               3.00E-13

    22           DOUT4                  output                  6.50E-02               5.38E-09               3.00E-13

    23           DOUT3                  output                  6.30E-02               5.25E-09               2.90E-13

    24           DOUT2                  output                  6.20E-02               5.13E-09               2.80E-13

    25           DOUT1                  output                  6.00E-02               5.04E-09               2.70E-13

    26           DGND                   GND                      5.90E-02               4.95E-09               2.60E-13

    27           IOVDD                  POWER                 5.90E-02               4.90E-09               2.50E-13

    28           IOVDD                  POWER                 5.80E-02               4.87E-09               2.50E-13

    29           IOVDD                  POWER                 5.80E-02               4.87E-09               2.50E-13

    30           IOVDD                  POWER                 5.80E-02               4.87E-09               2.50E-13

    31           DGND                   GND                      5.80E-02               4.85E-09               2.40E-13

    32           DGND                   GND                      5.80E-02               4.85E-09               2.40E-13

    33           DGND                   GND                      5.80E-02               4.85E-09               2.40E-13

    34           DGND                   GND                      5.80E-02               4.85E-09               2.40E-13

    35           DVDD                    POWER                 5.80E-02               4.87E-09               2.50E-13

    36           DVDD                    POWER                 5.80E-02               4.87E-09               2.50E-13

    37           CLK                         input                     5.90E-02               4.90E-09               2.50E-13

    38           SCLK                      out_io                   5.90E-02               4.95E-09               2.60E-13

    39           _DRDY/FSYNC   out_io                   6.00E-02               5.04E-09               2.70E-13

    40           FORMAT2            input                     6.20E-02               5.13E-09               2.80E-13

    41           FORMAT1            input                     6.30E-02               5.25E-09               2.90E-13

    42           FORMAT0            input                     6.50E-02               5.38E-09               3.00E-13

    43           MODE1                 input                     6.50E-02               5.38E-09               3.00E-13

    44           MODE0                 input                     6.30E-02               5.25E-09               2.90E-13

    45           _PWDN8              input                     6.20E-02               5.13E-09               2.80E-13

    46           _PWDN7              input                     6.00E-02               5.04E-09               2.70E-13

    47           _PWDN6              input                     5.90E-02               4.95E-09               2.60E-13

    48           _PWDN5              input                     5.90E-02               4.90E-09               2.50E-13

    49           _PWDN4              input                     5.80E-02               4.87E-09               2.50E-13

    50           _PWDN3              input                     5.80E-02               4.85E-09               2.40E-13

    51           _PWDN2              input                     5.80E-02               4.85E-09               2.40E-13

    52           _PWDN1              input                     5.80E-02               4.87E-09               2.50E-13

    53           AGND                   GND                      5.90E-02               4.90E-09               2.50E-13

    54           AGND                   GND                      5.90E-02               4.90E-09               2.50E-13

    55           AVDD                    POWER                 5.90E-02               4.95E-09               2.60E-13

    56           AVDD                    POWER                 5.90E-02               4.95E-09               2.60E-13

    57           AGND                   GND                      5.90E-02               4.90E-09               2.50E-13

    58           AINP8                   analog                   6.00E-02               5.04E-09               2.70E-13

    59           AINN8                   analog                   6.20E-02               5.13E-09               2.80E-13

    60           AGND                   GND                      5.90E-02               4.90E-09               2.50E-13

    61           AINP7                   analog                   6.30E-02               5.25E-09               2.90E-13

    62           AINN7                   analog                   6.50E-02               5.38E-09               3.00E-13

    63           AGND                   GND                      5.90E-02               4.90E-09               2.50E-13

    64           AINP6                   analog                   6.50E-02               5.38E-09               3.00E-13

    65           AINN6                   analog                   6.30E-02               5.25E-09               2.90E-13

    66           AGND                   GND                      5.90E-02               4.90E-09               2.50E-13

    67           AINP5                   analog                   6.20E-02               5.13E-09               2.80E-13

    68           AINN5                   analog                   6.00E-02               5.04E-09               2.70E-13

    69           AGND                   GND                      5.90E-02               4.90E-09               2.50E-13

    70           AVDD                    POWER                 5.90E-02               4.95E-09               2.60E-13

    71           AVDD                    POWER                 5.90E-02               4.95E-09               2.60E-13

    72           AGND                   GND                      5.90E-02               4.90E-09               2.50E-13

    73           VCOM                   analog                   5.80E-02               4.87E-09               2.50E-13

    74           VREFP                   analog                   5.80E-02               4.85E-09               2.40E-13

    75           VREFN                  analog                   5.80E-02               4.85E-09               2.40E-13

    76           AGND                   GND                      5.80E-02               4.87E-09               2.50E-13

    77           AGND                   GND                      5.90E-02               4.90E-09               2.50E-13

    78           AVDD                    POWER                 5.90E-02               4.95E-09               2.60E-13

    79           AVDD                    POWER                 5.90E-02               4.95E-09               2.60E-13

    80           AINP4                   analog                   6.00E-02               5.04E-09               2.70E-13

    81           AINN4                   analog                   6.20E-02               5.13E-09               2.80E-13

    82           AGND                   GND                      5.90E-02               4.90E-09               2.50E-13

    83           AINP3                   analog                   6.30E-02               5.25E-09               2.90E-13

    84           AINN3                   analog                   6.50E-02               5.38E-09               3.00E-13