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| 型号： | AS5304-DK-1.0 |
| 厂商： | ams |
| 文件页数： | 10/15页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO AS5304 |
| 标准包装： | 1 |
| 传感器类型： | 霍尔效应 |
| 传感范围： | 5mT 跳闸，60mT 释放 |
| 电源电压： | 电池，9V |
| 嵌入式： | 否 |
| 已供物品： | 2 个板，电池，夹具，磁条 |
| 已用 IC / 零件： | AS5304/B |
| 其它名称： | AS5304/B DB AS5304/B DB-ND |
AS5304/AS5306 Integrated Hall IC for linear and off-axis rotary motion detection
7.4
Dynamic Non-Linearity (DNL)
The DNL (dynamic non-linearity) describes the non-linearity of the incremental outputs from one step to the next. In an ideal
system, every change of the incremental outputs would occur after exactly one LSB (e.g. 25μm on AS5304). In practice
however, this step size is not ideal, the output state will change after 1LSB +/-DNL. The DNL must be <+/- ? LSB to avoid a
missing code. Consequently, the incremental outputs will change when the magnet movement over the IC is
minimum 0.5 LSB and maximum 1. 5 LSB ’s.
AS5304:
DNL (dynamic non-linearity)
1 LSB - DNL
12.5 μm
1 LSB
25 μm
1 LSB + DNL
37.5 μm
lateral magnet movement
Figure 11:
AS5306:
DNL (dynamic non- linearity)
1 LSB - DNL
7.5 μm
1 LSB
15 μm
1 LSB + DNL
22.5 μm
lateral magnet movement
DNL of AS5304 (left) and AS5306 (right)
8
The AO Output
The Analog Output (AO) provides an analog output voltage that represents the Automatic Gain Control (AGC) of the Hall
sensors signal control loop.
This voltage can be used to monitor the magnetic field strength and hence the gap between magnet and chip surface:
?
?
Short distance between magnet and IC → strong magnet ic field → low loop gain → low AO voltage
Long distance between magnet and IC → we ak magnetic field → high loop gain → high AO voltage
V AO [V]
5.1
3
strong field,
weak field,
high AGC
recommended range
1.2
low AGC
0.5
vertical gap
Figure 12:
AO output versus AGC, magnetic field strength , magnet-to-IC gap
Revision 1.9
www.ams.com
Page 9 of 14
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AS5304-DK-ST-1.0 | 制造商:ams 功能描述:Demo Board |
| AS5304-TS_EK_AB | 功能描述:AS5304A, AS5304B - Magnetic, Linear, Rotary Position Sensor Evaluation Board 制造商:ams 系列:- 零件状态:有效 传感器类型:磁性，线性，旋转位置 感应范围:- 接口:模拟 灵敏度:- 电压 - 电源:4.5 V ~ 5.5 V 嵌入式:- 所含物品:板 使用的 IC/零件:AS5304A，AS5304B 标准包装:1 |
| AS5304-TS_EK_DB | 功能描述:AS5304/B - Hall Effect Sensor Evaluation Board 制造商:ams 系列:- 零件状态:有效 传感器类型:霍尔效应 感应范围:5mT 跳闸，60mT 释放 接口:- 灵敏度:- 电压 - 电源:9V 嵌入式:否 所含物品:2 个板，电池，夹具，磁条 使用的 IC/零件:AS5304/B 标准包装:1 |
| AS5305 | 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:Integrated Hall IC for Linear and Off-Axis Rotary Motion Detection |
| AS5306/B DB | 功能描述:BOARD DEMO AS5306 RoHS:否 类别:编程器，开发系统 >> 评估板 - 传感器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- |
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