A1315 Datasheet Text
Linear Hall-Effect Sensor IC with Analog Output Available in a Miniature, Low-Profile Surface-Mount Package
Features
AND BENEFITS
- 3.3 V supply operation
- QVO temperature coefficient programmed at Allegro™ for improved accuracy
- Miniature package options
- High-bandwidth, low-noise analog output
- High-speed chopping scheme minimizes QVO drift across operating temperature range
- Temperature-stable quiescent voltage output and sensitivity
- Precise recoverability after temperature cycling
- Output voltage clamps provide short-circuit diagnostic capabilities
- Undervoltage lockout (UVLO)
- Wide ambient temperature range:
- 40°C to 150°C
- Immune to mechanical stress
- Enhanced EMC performance for stringent automotive applications
PACKAGES:
3-pin SOT23-W 2 mm × 3 mm × 1 mm
(suffix LH)
3-pin ultramini SIP, 1.5 mm × 4 mm × 3 mm
(suffix UA)
Not to scale
DESCRIPTION
New applications for linear output Hall-effect sensors, such as displacement and angular position, require higher accuracy and smaller package sizes. The Allegro A1315 linear Halleffect sensor IC has been designed specifically to meet both requirements. These temperature-stable devices are available in both surface-mount and through-hole packages.
The accuracy of each device is enhanced via end-of-line optimization. Each device Features non-volatile memory to optimize device sensitivity and the quiescent voltage output (QVO: output in the absence of a magnetic field) for a given application or circuit. This A1315 optimized performance is sustained across the full operating temperature range by programming the temperature coefficient for both sensitivity and QVO at Allegro end-of-line test.
These ratiometric Hall-effect sensor ICs provide a voltage output that is proportional to the applied magnetic...
