SLIA086A June   2014  – December 2021 DRV5013 , DRV5013-Q1 , DRV5023 , DRV5023-Q1 , DRV5033 , DRV5033-Q1 , DRV5053 , DRV5053-Q1

 

  1.   Trademarks
  2. 1Units
  3. 2Practical Concepts
  4. 3Polarity
  5. 4Digital Hall Sensor Functionality
    1. 4.1 Design Example with Digital Hall Sensors
  6. 5Linear Hall Sensor Functionality
    1. 5.1 Linearity
    2. 5.2 Noise
    3. 5.3 Magnetic Flux Density Calculator
    4. 5.4 Design Example with Analog Hall Sensors
  7. 6Information on Additional Data Sheet Specifications
  8. 7Revision History

5.2 Noise

The output-referred noise (VN) parameter for analog output Hall sensors describes the voltage noise present on the device output, and equals the input-referred noise times sensitivity. VN is settled with an external RC low-pass filter.

Table 5-5 Noise Parameter
PARAMETER MIN TYP MAX UNIT
VN Output-referred noise DRV5055A1/Z1 12 mVpp
Output-referred noise DRV5055A2/Z2 6
Output-referred noise DRV5055A3/Z3 3
Output-referred noise DRV5055A4/Z5 1.5
BN Input-referred noise at VCC=5 V 0.12 mTpp
Input-referred noise at VCC=3.3 V 0.2

For linear 3D Hall-effect sensors like the TMAG5170, please note that the noise may be expressed in units of RMS noise (1-sigma) instead of the 6.6-sigma mTPP mentioned above for the DRV5055. To convert the RMS noise to match the 6.6-sigma mTPP mentioned above, multiply the RMS noise by 6.6.