Diodes Incorporated

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

Back to Hall Effect Latches and Switches


Low-Voltage, High-Sensitivity Hall Effect Latch Switch

Contact Sales

Log in or register to manage email notifications about changes to datasheets or PCNs for this part.


The DIODES AH1711/AH1712/AH1713/AH1714 is a low-voltage, high-sensitivity Hall effect latch IC designed for brushless DC-motor commutation speed measurement, angular or linear encoders and position sensors in industrial applications. To support a wide range of demanding applications, the design is optimized to operate at 2.4V to 5.5V. With chopper stabilized architecture and an internal bandgap regulator to provide temperature compensated supply for internal circuits, the AH1711/AH1712/AH1713/AH1714 provides a reliable solution over the whole operating range. 

The open-drain output of AH1711/AH1712/AH1713 can be switched on when applying South pole with sufficient magnetic near the top of the package, while North pole with sufficient magnetic strength causes the open-drain output switched off (AH1714 polarity inverted). When the magnetic flux density (B) perpendicular to the package is larger than the operate point (Bop) the output is switched on (pulled low). The output is held latched until magnetic flux density reverses and becomes lower than the release point (Brp).


  • Latch Operation
  • High Sensitivity: Bop and Brp of ±7 Gauss and ±18 Gauss
  • Open-Drain Output
  • 4V to 5.5V Operating Voltage Range
  • Chopper Stabilized Design Provides
    • Superior Temperature Stability
    • Minimal Switch Point Drift
    • Enhanced Immunity to Stress
  • Good RF Noise Immunity
  • -40°C to +125°C Operating Temperature
  • ESD: HBM 8kV, CDM 2kV
  • Industry Standard SOT23 Package
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/


  • Brushless DC-motor commutation
  • Revolution per minute (RPM) measurements
  • Wheel speed/angular/speed sensing
  • Flow meters
  • E-bikes
  • Knobs

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP) Standard
AEC Qualified No
Type Latch
Outputs Single
Output Type Open Drain
Active Output State (B > Bop) Low
Inactive Output State (B < Brp) High-Z
Operating Voltage (V) 2.4 to 5.5
Average Supply Current (mA) 2.3
Min Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) -2
Typ Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 7
Max Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 20
Min Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) -20
Typ Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) -7
Max Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) 2
Output Current Capability (mA) 30
Operating Ambient Temperature (°C) -40 to 125

Related Content


Technical Documents

Recommended Soldering Techniques