These devices complement Allegro?s portfolio of linear sensors, each designed to address specific application demands.

The A1393/5 will be successful in applications where absolute position sensing is required and limiting power consumption is critical.

As the first analog-output Hall-effect sensors that operate down to 2.5 V, they include a sleep enable pin and have high impedance outputs while in sleep mode.

The low-voltage operation allows these devices to be used in battery-operated applications, which traditionally provide less than a 5 V supply. 

By employing a logic level on the sleep enable pin, users are able to configure the desired power consumption for the device by modulating when the device is active (~ 4 mA current draw) and sleeping (~ 25 µA).

Additionally during the sleep mode the output is not valid, high impedance, allowing the outputs from multiple devices to be connected to and sampled by a single A/D converter.

The A1391/2 are differentiated by their gains: 1.25 mV/G and 2.50 m/G, respectivly.  Similarly the A1393/5 are also differentiated by their gains: 5.00 mV/G and 10.0 mV/G, respectivly. 

All devices are available in a miniature, low profile, lead-less package: 2.00 mm by 3.00 mm by 0.75 mm micro-leaded package.

• Differentiated by their gains:
  • A1391: 1.25 mV/G
  • A1392: 2.50 m/G
  • A1393: 5.0 mV/G
  • A1395: 10 m/G
• Low-voltage operation down to 2,5V for power-sensitive applications
• 10 mW power consumption in the active mode
• 75µW power consumption in sleep mode
• Low-profile 2 x 3 x 0.75 mm micro-leaded package
• Chopper stabilization for temperature-stable quiescent output voltage and sensitivity
• Logic-level controlled sleep-enable pin to modulate the on time
• High impedance output during sleep mode,  allows connection of multiple device outputs  to a single A/D converter to sample the outputs