Allegro MicroSystems APS122x High-Temperature Hall-Effect Sensor ICs
Allegro MicroSystems APS122x High-Temperature Hall-Effect Sensor ICs are extremely temperature-stable and stress-resistant devices for extended temperature ranges up to +175°C. This superior high-temperature design is due to dynamic offset cancellation that reduces the residual offset voltage typically caused by device overmolding, thermal stress, and temperature dependencies. This single silicon chip includes a Hall plate, small signal amplifier, chopper stabilization, Schmitt trigger, and a short-circuit-protected open-drain output. Sufficient strength from a south pole turns the output On, while a north pole of sufficient strength is necessary to turn the output Off. Allegro MicroSystems APS122x High-Temperature Hall-Effect Sensor ICs are AEC-Q101 automotive qualified and available in two package options with through-hole and surface-mount designs.Features
- Symmetrical latch switchpoints
- Output short-circuit protection
- Solid-state reliability
- Industry-standard packages and pinouts
- Optimized for applications with regulated power rails
- Dynamic offset cancellation
- Resistant to physical stress
- Superior temperature stability
Specifications
- AEC-Q100 automotive qualified
- Operation up to +175°C junction temperature
- 2.8V to 5.5V forward supply voltage
- 10µA output leakage current
- 25µs maximum power-on time
- 800kHz chopping frequency
- Packages
- 3-pin SOT23W surface-mount package (LH)
- 3-pin ultra-mini SIP for through-hole mounting (UA)
Functional Block Diagram
Published: 2023-05-16
| Updated: 2025-03-03
