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Pricing on the INA209 and INA219

Epic Vancouver
Intellectual 885 points
Other Parts Discussed in Thread: INA219, INA209

Can someone please detail why the INA209 is more than double the cost of the INA219?

1k pricing for the INA209 = $2.50us

1k pricing for the INA219 = $1.20us

  • 0
    TI__Mastermind 25805 points

    Hello Epic,

     

    In looking at the block diagrams of the two devices you will notice a significant amount of additional functionality with the INA209.

     

    INA209:

     

    First, the INA209 has outputs that report the following conditions:  critical (shunt voltage), overlimit (power and bus voltage), and warning (power, bus voltage, and shunt voltage) signals. 

     

    Also, the critical path also includes 2 DACs and 2 comparators that are not present in the INA219.  This will add die size and package size (INA209 is in a 16-pin TSSOP while the INA219 comes in SO-8 and SOT23-8.

     

    If you need further information, please let me know.