Datasheet > A1325LLHLT-

A1325LLHLT-

更新时间： 2022-02-26 13:25:23

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急速微 - ALLEGRO		/
页数	文件大小	规格书
12页	1004K
描述
Low Noise, Linear Hall Effect Sensor ICs with Analog Output

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A1325LLHLT- 数据手册

A1324, A1325,

and A1326

Linear Hall Effect Sensor ICs with Analog Output

T_A= 25°C, and Sens_(25°C)1is the value of sensitivity at T_A= 25°C

after temperature cycling T_Aup to 150°C, down to –40°C, and

back to up 25°C.

Symmetry Sensitivity Error The magnetic sensitivity of a

device is constant for any two applied magnetic fields of equal

magnitude and opposite polarities.

Symmetry Error (%), is measured and defined as:

Linearity Sensitivity Error The 132x is designed to provide

linear output in response to a ramping applied magnetic field.

Consider two magnetic fields, B1 and B2. Ideally the sensitivity

of a device is the same for both fields for a given supply voltage

and temperature. Linearity sensitivity error is present when there

is a difference between the sensitivities measured at B1 and B2.



Sens





^B(+)

1–

Sym_ERR

(11)

100%





Sens_B(–)





where Sens_Bxis defined as in equation 9, and B(+), B(–) are posi-

tive and negative magnetic fields such that |B(+)| = |B(–)|.

Ratiometry Error The A132x features a ratiometric output.

This means that the quiescent voltage output, V_OUT(Q), magnetic

sensitivity, Sens, and clamp voltages, V_CLPHIGHand V_CLPLOW

are proportional to the supply voltage, V_CC. In other words, when

the supply voltage increases or decreases by a certain percent-

age, each characteristic also increases or decreases by the same

percentage. Error is the difference between the measured change

in the supply voltage, relative to 5 V, and the measured change in

each characteristic.

Linearity Sensitivity Error is calculated separately for the positive

(LIN_ERR+) and negative (LIN_ERR–) applied magnetic fields. Lin-

earity Sensitivity Error (%) is measured and defined as:







Sens





^B(++)

1–

Lin_ERR+

100%



Sens_B(+)







Sens



^{B(– –)}

(7)

1–

Lin_ERR–





Sens_B(–)





The ratiometric error in quiescent voltage output, Rat_VOUT(Q)

(%), for a given supply voltage, V_CC, is defined as:

and

Lin_ERR= max(|Lin_ERR+| , |Lin_ERR–| )

(8)

(9)



V_OUT(Q)VCC⁄ V





^OUT(Q)5V

1–

(12)

Rat_VOUT(Q)

100%

where:





V_CC⁄ 5 V









|V_OUT(Bx)– V_OUT(Q)

The ratiometric error in magnetic sensitivity, Rat_SENS(%), for a

given supply voltage, V_CC, is defined as:





Sens_Bx

B_X





and B(++), B(+), B(––), and B(–) are positive and negative mag-

netic fields with respect to the quiescent voltage output such that

|B(++)| > |B(+)| and |B(––)| > |B(–)| .



Sens_VCC⁄ Sens

V_CC⁄ 5 V





^5V

1–

Rat_VOUT(Q)

(13)

100%









Allegro MicroSystems, LLC

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

1...3 4 567 8 9...12

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与A1325LLHLT-相关器件

型号	品牌	描述	获取价格	数据表
A1325LLHLX-	ALLEGRO	Low Noise, Linear Hall Effect Sensor ICs with Analog Output	获取价格
A1325LLHLX-T	ALLEGRO	Low Noise, Linear Hall Effect Sensor ICs with Analog Output	获取价格
A1325LUA-T	ALLEGRO	Hall Effect Sensor, BICMOS, Plastic/epoxy, Rectangular, 3 Pin, Through Hole Mount, SIP-3	获取价格
A1325LUA-T2	ALLEGRO	Low Noise, Linear Hall Effect Sensor ICs with Analog Output	获取价格
A1326	ALLEGRO	Low Noise, Linear Hall Effect Sensor ICs with Analog Output	获取价格
A1326LLHLT-	ALLEGRO	Low Noise, Linear Hall Effect Sensor ICs with Analog Output	获取价格

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