Datasheet > APS00A

APS00A

更新时间： 2022-06-02 23:57:55

品牌	Logo	应用领域
霍尼韦尔 - HONEYWELL		传感器
页数	文件大小	规格书
6页	607K
描述
High Resolution Magnetic Angular Position Sensor IC

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APS00A 数据手册

Figure 1. Detection of Relative Motion of a Magnet in Angular Displacement

The APS00B sensor can used to detect the relative motion of a magnet in

angular displacement.

Given a typical supply voltage of 5 V, each bridge will provide about 115 mV of

swing (±57.5 mV) on top of 2.5 V bias voltage. With +5 V applied to it, the

bridge performs a rail splitter function to create two near +2.5 V sources driven

apart by V as created by the magnetic field and the offset error voltage.

The bridge differential output voltages ( V) for the APS00B are:

V_A= Vs S sin (2 θ) and V_B= Vs S cos (2 θ) where:

Vs = Supply Voltage (V)

S = Material Constant = ( R/R

) *(1/2) = 11.5 mV/V nominal

max

θ = Reference to Magnetic Field Angle (°)

Please refer to Application Sheet “How to Apply Honeywell APS00B Angular

Position Sensors ICs” for additional details.

Figure 2. Electrical Diagram

Figure 3. Pinout and Sensing Element Location

The APS00B has two sensor bridges optimized for

rotary sensing applications. Thus the die is centered in

all three dimensions within the SOIC-8 package. The

figure below indicates the pin identification and the

sensing element location.

Bridge “A” output:

Bridge “B” output:

Vout = Vs*S*sin(2θ) + Vos

Vout = Vs*S*cos(2θ) + Vos

where:

S = 11.5 mV/V nominal

S = 11.5 mV/G nominal

Vos

A = Bridge A Offset

B = Bridge B Offset

(nominal = 0 V)

Bridge A is centroidally co-located with Bridge B, and Bridge A

elements are rotated by 45° relative to Bridge B elements as

shown.

Figure 4. Typical Bridge Outputs vs Rotation Angle

Honeywell Sensing and Control

1 234 5 6

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