Allegro Microsystems Surface Mount Hall Effect Sensor Switch, SOT-23, 3-Pin
- RS Stock No.:
- 680-7125
- Mfr. Part No.:
- A3212ELHLT-T
- Brand:
- Allegro Microsystems
5010 In stock - FREE next working day delivery available
Price Each (In a Pack of 5)
£0.70
(exc. VAT)
£0.84
(inc. VAT)
Units | Per unit | Per Pack* |
|---|---|---|
| 5 + | £0.70 | £3.50 |
*price indicative
- RS Stock No.:
- 680-7125
- Mfr. Part No.:
- A3212ELHLT-T
- Brand:
- Allegro Microsystems
Technical Reference
Legislation and Compliance
Product Details
A3211/2 Micropower, Ultra Sensitive Hall Effect Switches, Allegro Microsystems
The A3211/2 are ultrasensitive, pole independent, Hall-effect switches with latched digital output. Their 2.5 V to 3.5 V operation and unique clocking scheme reduces the average operating power to less than 15 μW with a 2.75 V supply.
Either a north or south pole turns on the output in the A3212 and removing the magnetic field turns the output is off. This is reversed on the A3211.
Chopper stabilisation improves stability which reduces the residual offset voltage normally caused by device overmolding, temperature dependencies, and thermal stress.
Included on the chip is a Hall-voltage generator, small-signal amplifier, chopper stabilisation, a latch, and a MOSFET output.
Either a north or south pole turns on the output in the A3212 and removing the magnetic field turns the output is off. This is reversed on the A3211.
Chopper stabilisation improves stability which reduces the residual offset voltage normally caused by device overmolding, temperature dependencies, and thermal stress.
Included on the chip is a Hall-voltage generator, small-signal amplifier, chopper stabilisation, a latch, and a MOSFET output.
Hall Effect Sensors, Allegro MicroSystems
Specifications
Attribute | Value |
|---|---|
| Sensor Type | Hall Effect Sensors |
| Mounting Type | Surface Mount |
| Magnetic Type | Omnipolar |
| Maximum Operating Supply Voltage | 3.5 V |
| Minimum Operating Supply Voltage | 2.5 V |
| Package Type | SOT-23 |
| Pin Count | 3 |
| Maximum Operating Temperature | +85 °C |
| Minimum Operating Temperature | -40 °C |
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