SLVAF40 July   2021 TPS2661

 

  1.   Trademarks
  2. 1Introduction
  3. 2Discrete Solution With PTC
  4. 3TPS26610 Advantages to a Typical Solution
    1. 3.1 BOM and Size Reduction
    2. 3.2 Burden Resistor and Power Dissipation
    3. 3.3 Voltage Drop
    4. 3.4 Signal Good
    5. 3.5 Additional TPS26610 Features
      1. 3.5.1 Miswiring
      2. 3.5.2 Surge
      3. 3.5.3 Current-Loop Test During Installation (Unpowered)
      4. 3.5.4 High Accuracy For Current Measurements
  5. 4Conclusion

3.5.4 High Accuracy For Current Measurements

When the TPS26610 is powered through the supply pin, it draws 100-nA maximum current from the current loop across temperature and load conditions. This leakage current does not affect the result of a 16-bit ADC
(1 LSB = 20 mA / 216 = 305 nA > 100 nA).