Allegro Magnetic Sensors

A1326LUA-T

Allegro Magnetic Sensors A1326 In Stock

Allegro A1326LUA-T linear Hall-effect sensor, 2.5 mV/G analog ratiometric output, 4.5-5.5 V, -40 °C to +150 °C in a 3-pin SIP.

The A1326LUA-T is an Allegro MicroSystems A1326 low-noise linear Hall-effect sensor IC with a factory-programmed sensitivity of 2.5 mV/G, in a 3-pin ultramini SIP through-hole package. It is the lowest-sensitivity member of the A1324/5/6 family, with the widest usable field range, and it provides an analog voltage output proportional to the applied magnetic flux density, with a quiescent output at half the supply and a ratiometric rail-to-rail output that tracks the supply voltage. The device integrates the Hall element, temperature-compensating circuitry, a high-gain amplifier, a clamped output stage and a dynamic offset cancellation technique on a single die, which gives a low-noise output, a stable offset and precise recoverability after temperature cycling. It operates from a single 4.5 V to 5.5 V supply, has a bandwidth of about 17 kHz, and works over an extended -40 °C to +150 °C range, and it is immune to mechanical stress for solid-state reliability. The 2.5 mV/G sensitivity suits a strong magnetic field and a larger air gap, where the higher-sensitivity parts would saturate, such as a coarse position or proximity measurement. Typical uses include position and displacement sensing, angle and proximity detection and motor commutation in automotive and industrial equipment. Every sensor BeiLuo ships is factory-traceable and includes an import declaration, a certificate of origin and a RoHS compliance file. Our FAE team helps you choose the sensitivity and the package and plan the magnetic circuit.

FAE Professional Review

The A1326LUA-T is the wide-range choice for a strong field or a generous air gap, where the higher-sensitivity parts would saturate. It shares the package and the interface of the family, so a board can be tuned by swapping the part. Keep the supply clean, confirm that the output spans the range of interest without clipping, and consider the noise at the lower sensitivity.
ParameterValue
Sensitivity2.5 mV/G
Supply4.5-5.5 V
OutputAnalog, ratiometric
Package3-pin SIP
Temperature-40 °C to +150 °C

Application Circuits

Application

Position and displacement sensing

Reference circuits and application schematics for Position and displacement sensing are available from our FAE team.

Application

Angle and proximity detection

Reference circuits and application schematics for Angle and proximity detection are available from our FAE team.

Application

Motor commutation

Reference circuits and application schematics for Motor commutation are available from our FAE team.

Need a reference schematic or design review? Our FAE engineers can share verified circuits and layout guidance for this part.

Related Documents

Alternative Part Numbers

ModelPackageNoteAction
A1325LUA-T 3-pin SIP Higher 3.125 mV/G sensitivity for a smaller field View

Complementary Part Numbers

ModelPackageNoteAction
A1324LUA-T 3-pin SIP Higher 5.0 mV/G sensitivity for a small field View
ACS712ELCTR-30A-T 8-pin SOIC Hall-effect current sensor for the same magnetic sensing approach View

Frequently Asked Questions

What projects suit the A1326LUA-T?

It suits position, angle and proximity sensing with a strong field or a larger air gap, where the higher-sensitivity parts would saturate. The 2.5 mV/G sensitivity gives the widest usable field range of the family.

Confirm that the output spans the range of interest without clipping.

Request this sensor for your design

Does a lower sensitivity mean more noise?

The output-referred noise is actually lower at the lower sensitivity, so the A1326 has the quietest output of the family. The trade is a smaller output per gauss, so match it to a field strong enough to give a good signal.

Our FAE team can help with the field and noise budget.

Read the Hall-effect design notes

Is the sensor genuine and documented?

BeiLuo supplies factory-traceable A1326LUA-T sensors with an import declaration, certificate of origin and RoHS file on every order. Stock is normally available and the datasheet downloads from this page.

Order a sample to validate the sensor before volume production.

Request stock, sample or a quote