Omnipolar Hall-Effect Digital Switches

Unlike other Hall-effect switches, these devices switch on with the presence of either a north or south magnetic field that has sufficient strength; in the absence of a magnetic field the output is off.

Omnipolar Hall-Effect Digital Switches
Part Number	Operating Voltage (V)	Operate Point (G)	Release Point (G)	Hysteresis (G)	Temperature Ranges	Packages	Supply Current (µA)	Features
A3211	2.5 to 3.5	±55	±10	Typ 7.7	E	EL, EH, LH	6 (typ)	Inverted output; operates at approximately 0.1% duty cycle
A3212	2.5 to 3.5	±55	±10	Typ 7.7	E	EL, LH, LH	6 (typ)	Operates at approximately 0.1% duty cycle
A3213	2.4 to 5.5	±70	±10	Typ 7.7	E, L	LH, UA	825 (max)
A3214	2.4 to 5.5	±70	±10	Typ 7.7	E, L	LH, UA	14 (max)	Operates at approximately 0.1% duty cycle
A3245	3.6 to 24	±55	±10	Typ 15	E, L	LH, UA	1500 (typ)	Integrated voltage regulator
A1171	1.65 to 3.5	±55	±6	Typ 6	E	EW	4.0 (typ) (V_DD = 1.8 V)	Complementary outputs, also unipolar operating mode
A1172	1.65 to 3.5	±55	±6	Typ 6	E	CG	4.0 (typ) (V_DD = 1.8 V)	Wafer Level Chip Scale Package (WLCSP)

Application Note: Omnipolar Switch Hall-Effect IC Basics