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A1321EUA Datasheet(PDF) 4 Page - Allegro MicroSystems |
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A1321EUA Datasheet(HTML) 4 Page - Allegro MicroSystems |
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4 / 9 page  4 A1321-DS Rev. 3 Worcester, Massachusetts 01615-0036 (508) 853-5000 115 Northeast Cutoff, Box 15036 www.allegromicro.com Allegro MicroSystems, Inc. Ratiometric Linear Hall Effect Sensor for High-Temperature Operation A1321/A1322/A1323 MAGNETIC CHARACTERISTICS1,2 over operating temperature range, TA; VCC = 5 V, Iout = –1 mA; unless otherwise noted Characteristics Symbol Test Condition Min Typ3 Max Units4 Sensitivity5 Sens A1321; TA = 25ºC 4.750 5.000 5.250 mV/G A1322; TA = 25ºC 2.969 3.125 3.281 mV/G A1323; TA = 25ºC 2.375 2.500 2.625 mV/G Delta Vout(q) as a func- tion of temperature Vout(q)(∆T) Defined in terms of magnetic flux density, B – – ±10 G Ratiometry, Vout(q) Vout(q)(∆V) – – ±1.5 % Ratiometry, Sens ∆Sens(∆V) – – ±1.5 % Positive Linearity Lin+ – – ±1.5 % Negative Linearity Lin– – – ±1.5 % Symmetry Sym – – ±1.5 % UA Package Delta Sens at TA = max5 ∆Sens(TAmax) From hot to room temperature –2.5 – 7.5 % Delta Sens at TA = min5 ∆Sens(TAmin) From cold to room temperature –6 – 4 % Sensitivity Drift6 SensDrift TA = 25°C; after temperature cycling and over time – 1 2 % LH Package Delta Sens at TA = max5 ∆Sens(TAmax) From hot to room temperature –5 – 5 % Delta Sens at TA = min5 ∆Sens(TAmin) From cold to room temperature –3.5 – 8.5 % Sensitivity Drift6 SensDrift TA = 25°C; after temperature cycling and over time – 0.328 2 % 1 Additional information on chracteristics is provided in the section Characteristics Definitions, on the next page. 2 Negative current is defined as conventional current coming out of (sourced from) the specified device terminal. 3 Typical data is at TA = 25°C, except for ∆Sens, and at x.x Sens. Typical data are for initial design estimations only, and assume optimum manufacturing and application conditions. Performance may vary for individual units, within the specified maximum and minimum limits. In addition, the typical values vary with gain. 4 10 G = 1 millitesla. 5 After 150ºC pre-bake and factory programming. 6 Sensitivity drift is the amount of recovery with time. |
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