Features: Temperature-stable quiescent output voltage
Precise recoverability after temperature cycling
Output voltage proportional to magnetic fl ux density
Ratiometric rail-to-rail output
Improved sensitivity
4.5 to 5.5 V operation
Immunity to mechanical stress
Solid-state reliability
Robust EMC protection SpecificationsSupply Voltage, VCC ...........................................8 V*
Reverse-Battery Voltage, VRCC......................0.1 V
Reverse-Output Voltage, VROUT ....................0.1 V
Output Sink Current, IOUT ..............................10 mA
Operating Temperature
Ambient, TA, Range E........................40ºC to 85ºC
Ambient, TA, Range L......................40ºC to 150ºC
Maximum Junction, TJ(max).............................165ºC
Storage Temperature, TS ...............65ºC to 170ºCDescriptionThe A132X family of linear Hall-effect sensors are optimized, sensitive, and temperature-stable. These ratiometric Hall-effect sensors provide a voltage output that is proportional to the applied magnetic field. The A132X family has a quiescent output voltage that is 50% of the supply voltage and output sensitivity options of 2.5mV/G, 3.125mV/G, and 5mV/G. The features of this family of devices are ideal for use in the harsh environments found in automotive and industrial linear and rotary position sensing systems.
Each device of A132X family has a BiCMOS monolithic circuit which integrates a Hall element, improved temperature-compensating circuitry to reduce the intrinsic sensitivity drift of the Hall element, a small-signal high-gain amplifier, and a rail-to-rail low-impedance output stage.
A proprietary dynamic offset cancellation technique of A132X family, with an internal high-frequency clock, reduces the residual offset voltage normally caused by device overmolding, temperature dependencies, and thermal stress. The high frequency clock allows for a greater sampling rate, which results in higher accuracy and faster signal processing capability. This technique produces A132X family that have an extremely stable quiescent output voltage, are immune to mechanical stress, and have precise recoverability after temperature cycling. Having the Hall element and an amplifier on a single chip minimizes many problems normally associated with low-level analog signals.
Output precision of A132X family is obtained by internal gain and offset trim adjustments made at end-of-line during the manufacturing process.
The A132X family is provided in a 3-pin single in-line package (UA) and a 3-pin surface mount package (LH). Each package is available in a lead (Pb) free version (suffix, T) , with a 100% matte tin plated leadframe.
A1323 Data Sheet
