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A1340 Datasheet(PDF) 6 Page - Allegro MicroSystems |
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A1340 Datasheet(HTML) 6 Page - Allegro MicroSystems |
6 / 42 page High Precision Programmable Linear Hall Effect Sensor IC with EEPROM, Analog Output, and Advanced Output Linearization A1340 6 Allegro MicroSystems, LLC 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com MAGNETIC CHARACTERISTICS: valid across full operating temperature range, TA, and supply voltage range, VCC, CBYPASS = 10 nF; unless otherwise specified Characteristics Symbol Test Conditions Min. Typ. Max. Unit1 Factory Programmed Device Values2 Magnetic Input Signal Range BIN SENS_COARSE = 4 – ±300 – G Magnetic Input Signal Offset BINOFFSET SIG_OFFSET = 0 – 0 – V Output Sensitivity Sens SENS_MULT = 0, TA = 25°C 8.08 8.33 8.58 mV/G Quiescent Voltage Output VOUT(Q) BIN = 0 G, TA = 25°C 2.42 2.50 2.58 V Output Clamp Initial Voltage VCLP(H)init – VCC – VSAT(H) – V VCLP(L)init – VSAT(L) – V Sensitivity Drift Over Temperature3 DSens TA = –40°C to 25°C – <±0.03 – %/°C TA = 25°C to 150°C – <±0.02 – %/°C Offset (QVO) Drift Over Temperature4 D VOUT(Q) TA = –40°C to 25°C – <±0.7 – mV/°C TA = 25°C to 150°C – <±0.1 – mV/°C 1 1 G (gauss) = 0.1 mT (millitesla). 2 Device performance is optimized for the input magnetic range of SENS_COARSE = 4 and input offset of SIG_OFFSET=0. If a different magnetic input range or signal offset is required, please see the tables in the section EEPROM Customer-Programmable Parameter Reference, near the end of this document. 3 Does not include drift over lifetime and package hysteresis. 4 Offset drifts with temperature changes will be altered from the factory programmed values if Magnetic Input Signal Range is changed. If changes in Magnetic Input Signal Range cannot be avoided because of application requirements, please contact Allegro for detailed information. |
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