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A1322EUA DescriptionThe A132X linear Hall-effect sensors are optimized, sensitive, temperature stable linear Hall-effect sensors with greatly improved offset characteristics. These ratiometric Hall-effect sensors provide a voltage output that is proportional to the applied magnetic field. The linear family has a quiescent output voltage that is 50% of the supply voltage and output sensitivity options of nominally 2.5mV/G, 3.125mV/G, and 5mV/G. The features of this linear family are ideal for use in linear and rotary position sensing systems in harsh environments of automotive and industrial applications over extended temperatures to -40°C and +150°C. Each BiCMOS monolithic circuit 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, with an internal high frequency clock reduces the residual offset voltage, which is normally caused by device over molding, temperature dependencies, and thermal stress. The high frequency clock allows for a greater sampling which produces higher accuracy and faster signal processing capability, This technique produces devices 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 is obtained by internal gain and offset trim adjustments made at end-of-line during the manufacturing process. A1322EUA ParametersProducts Similar to A1322EUAKeywords
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