The linear Hall-effect sensors' voltage output accurately tracks the changes in magnetic flux density. In the quiescent state (no magnetic field), the output is ideally equal to one-half of the supply voltage over the operating voltage and temperature ranges. An increasing south-pole magnetic field will increase the voltage from its quiescent voltage. Conversely, an increasing north-pole field will decrease the voltage from its quiescent voltage. These parts are designed for the measurement of angle, proximity, motion, and the magnetic flux from current. They are magnetically driven mirrors of mechanical events. Allegro offers devices with outputs at various sensitivities.
| Part Number | Supply Voltage (V) | Quiescent Output (V) | Typical Sensitivity (mV/G) | Output Bandwidth (kHz) | Temperature Ranges | Packages | Key Features |
|---|---|---|---|---|---|---|---|
| A1301 | 4.5 to 6.0 | Typ 50% Vcc | 2.5 | 20 | E, K | LH, LT, UA | Continuous-time |
| A1302 | 4.5 to 6.0 | Typ 50% Vcc | 1.3 | 20 | E, K | LH, LT, UA | Continuous-time |
| A1321 | 4.5 to 5.5 | Typ 50% Vcc | 5.0 | 30 | E, L | LH, UA | Chopper-stabilized |
| A1322 | 4.5 to 5.5 | Typ 50% Vcc | 3.13 | 30 | E, L | LH, UA | Chopper-stabilized |
| A1323 | 4.5 to 5.5 | Typ 50% Vcc | 2.5 | 30 | E, L | LH, UA | Chopper-stabilized |
| A1373 | 4.5 to 5.5 | 0.7 to 4.5 (Programmable) | 1.25 to 11.25 (Programmable) | 2.5 | E, L | KB | Chopper-stabilized |
| A1374 | 4.5 to 5.5 | 0.7 to 4.5 (Programmable) | 1.25 to 11.25 (Programmable) | 20 | E, L | KB | Chopper-stabilized |
| A1381 | 4.5 to 5.5 | 2.3 to 2.7 | 6.00 to 9.00 (Programmable) | 12 | E, L | LH, UA | Chopper-stabilized |
| A1382 | 4.5 to 5.5 | 2.3 to 2.7 (Programmable) | 4.00 to 6.00 (Programmable) | 17 | E, L | LH, UA | Chopper-stabilized |
| A1383 | 4.5 to 5.5 | 2.3 to 2.7 (Programmable) | 2.50 to 3.75 (Programmable) | 21 | E, L | LH, UA | Chopper-stabilized |
| A1384 | 4.5 to 5.5 | 2.3 to 2.7 (Programmable) | 2.00 to 3.00 (Programmable) | 27 | E, L | LH, UA | Chopper-stabilized |
| A1391 | 2.5 to 3.5 | Typ 50% Vref | 1.25 | 10 | S | EH | Chopper-stabilized |
| A1392 | 2.5 to 3.5 | Typ 50% Vref | 2.5 | 10 | S | EH | Chopper-stabilized |
| A1393 | 2.5 to 3.5 | Typ 50% Vref | 5.0 | 10 | S | EH | Chopper-stabilized, µPower |
| A1395 | 2.5 to 3.5 | Typ 50% Vref | 10 | 10 | S | EH | Chopper-stabilized, µPower |
- Applications Information: Linear Hall-Effect Sensors (PDF)
- Applications Information: Non-Intrusive Hall-Effect Current Sensing Techniques Provide Safe, Reliable Detection, Protection for Power Electronics (PDF)
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