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Small Package Linear Hall Effect Sensor ALLEGRO A1324LLHLT-T for Displacement and Angular Position Sensing

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Small Package Linear Hall Effect Sensor ALLEGRO A1324LLHLT-T for Displacement and Angular Position Sensing

Sensitivity : 5mV/Gs

Operating Temperature : -40℃~+150℃

Voltage - Supply : 4.5V~5.5V

Sensitivity Temperature Bleaching : ±0%/℃

Description : SOT-23W Linear, Compass (ICs) RoHS

Mfr. Part # : A1324LLHLT-T

Model Number : A1324LLHLT-T

Package : SOT-23W

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Product Overview

The Allegro A1324, A1325, and A1326 are linear Hall-effect sensor ICs designed for high-accuracy applications requiring small package sizes. These temperature-stable devices provide a voltage output proportional to the applied magnetic field, featuring a quiescent voltage output of 50% of the supply voltage. They are ideal for displacement, angular position, and current measurement in automotive and industrial applications, operating across an extended temperature range of 40C to 150C. The integrated BiCMOS monolithic circuit includes a Hall element, temperature-compensating circuitry, a high-gain amplifier, a clamped output stage, and a dynamic offset cancellation technique for enhanced reliability and accuracy.

Product Attributes

Brand: Allegro
Lead-Free: Yes (Pb-free)
Leadframe Plating: 100% matte tin

Technical Specifications

Characteristic	Model/Part Number	Value	Unit	Notes
Sensitivity	A1324	5.0	mV/G	Factory programmed
	A1325	3.125	mV/G	Factory programmed
	A1326	2.5	mV/G	Factory programmed
Package Type	LH	SOT23W (miniature surface mount)		Approximate footprint: 2 mm 3 mm 1 mm
Package Type	UA	Ultra-mini through-hole single in-line package (SIP)		Approximate footprint: 1.5 mm 4 mm 3 mm
Operating Ambient Temperature Range	40C to 150C
Supply Voltage	4.5 to 5.5 V (Typical: 5.0 V)
Supply Current	6.9 to 9 mA (No load on VOUT)
Quiescent Voltage Output	2.425 to 2.575 V (Typical: 2.500 V at B=0 G, TA=25C)
Output Referred Noise	A1324	7.0	mV(p-p)	TA = 25C, CBYPASS = 0.1 F
Output Referred Noise	A1325	4.4	mV(p-p)	TA = 25C, CBYPASS = 0.1 F
Output Referred Noise	A1326	3.5	mV(p-p)	TA = 25C, CBYPASS = 0.1 F
Internal Bandwidth	17 kHz (Small signal, 3 dB)
Chopping Frequency	400 kHz (Typical at TA = 25C)
Sensitivity Temperature Coefficient (TCSens)	LH package	0	%/C	Programmed at TA = 150C, relative to Sens at 25C
Sensitivity Temperature Coefficient (TCSens)	UA package	0.03	%/C	Programmed at TA = 150C, relative to Sens at 25C
Linearity Sensitivity Error	1.5 to 1.5 %
Symmetry Sensitivity Error	1.5 to 1.5 %
Ratiometric Quiescent Voltage Output Error (RatVOUT(Q))	1.3 to 1.3 % (Throughout supply voltage range, relative to VCC = 5 V)
Ratiometric Sensitivity Error (RatSens)	1.5 to 1.5 % (Throughout supply voltage range, relative to VCC = 5 V)

1810301521_ALLEGRO-A1324LLHLT-T_C163316.pdf

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