Allegro Multimedia A1321 manual Vcc = 5 525

A1321, A1322, and A1323

Ratiometric Linear Hall Effect Sensor for High-Temperature Operation

Typical Characteristics, continued

(30 pieces, 3 fabrication lots)

Average Absolute Quiescent Output Voltage, Vout(q), vs Temperature

	2.575			Vcc = 5 V					3
	2.55								2.9
									2.8
(V)	2.525							(V)	2.7
									2.6
out(q)	2.5
									2.5
V								out(q)
	2.475							V	2.4
									2.3
	2.45								2.2
	2.425								2.1
									2
	-40	-20	0	25	85	115	125	150
				TA (°C)

Quiescent Output Voltage, Vout(q), vs Vcc
	TA = 25°C
		1321
		1322
		1323
4.5	5	5.5

Vcc (V)

Average Absolute Sensitivity, Sens, vs Temperature

	6			Vcc = 5 V
									6
	5.5								5.5
	5								5
Sens (mV/G)	4.5								4.5
							A1322		4
								Sens (mV/G)
	4						A1321
									3.5
							A1323
	3.5								3
	3								2.5
									2
	2.5
									1.5
	2								1
	-40	-20	0	25	85	115	125	150
				TA (°C)

Average Sensitivity, Sens, vs Vcc

TA = 25°C

		1321
		1322
		1323
4.5	5	5.5

Vcc (V)

Average Delta Quiescent Output Voltage, Vout(q)(ΔT), vs Temperature

Δin readings at each temperature are relative to 25°C

	10			Vcc = 5 V
									10
	8
									8
	6
(G)									6
	4
									4
out(q)(ΔT)	2							(%)
									2
	0
									0
	-2
V								Sens	-2
	-4							Δ
									-4
	-6								-6
	-8								-8
	-10								-10
	-40	-20	0	25	85	115	125	150
				TA (°C)

Average Delta Sensitivity, ΔSens, vs Temperature

Δin readings at each temperature are relative to 25°C Vcc = 5 V

-40	-20	0	25	85	115	125	150
			TA (°C)

Allegro MicroSystems, Inc. 7

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com