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參數資料
| 型號： | AS5140H-ASST |
| 廠商： | ams |
| 文件頁數： | 32/38頁 |
| 文件大小： | 1279K |
| 描述： | IC ENCODER ROTARY 10BIT 16-SSOP |
| 標準包裝： | 2,000 |
| 傳感范圍： | 45mT ~ 75mT |
| 類型： | 線性，旋轉編碼器 - 可編程 |
| 電源電壓： | 3 V ~ 3.6 V，4.5 V ~ 5.5 V |
| 電流 - 電源： | 21mA |
| 電流 - 輸出（最大）： | 4mA |
| 輸出類型： | 數字式，PWM，10 位串行 |
| 特點： | 可編程 |
| 工作溫度： | -40°C ~ 150°C |
| 封裝/外殼： | * |
| 供應商設備封裝： | * |
| 包裝： | * |
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www.austriamicrosystems.com/AS5140H
Revision 1.4
31 - 37
AS5140H
Data Sheet - Detailed Description
7.12.6 Temperature
Magnetic Temperature Coefficient. One of the major benefits of the AS5140H, in comparison to linear Hall sensors is that it is much less
sensitive to temperature. While linear Hall sensors require a compensation of the magnets temperature coefficient, the AS5140H automatically
compensates for the varying magnetic field strength over temperature. The magnets temperature drift does not need to be considered, as the
AS5140H operates with magnetic field strengths from ?5&?5mT.
Example:
A NdFeB magnet has a field strength of 75mT @ -40篊 and a temperature coefficient of -0.12% per Kelvin. The temperature change is from -40?
to +150?= 190K. The magnetic field change is: 190 x -0.12% = -22.8%, which corresponds to 75mT at -40篊 and 57.9mT at 150篊.
In the above described scenario, the AS5140H can automatically compensate for the change in temperature related field strength. No user
adjustment is required.
Accuracy Over Temperature. The influence of temperature in the absolute accuracy is very low. While the accuracy is d ?/SPAN>0.5?/SPAN> at room
temperature, it may increase to d?.9?due to increasing noise at high temperatures.
Timing Tolerance Over Temperature. The internal RC oscillator is factory trimmed to ?/SPAN>5%. Over temperature, this tolerance may increase
to ?0%. Generally, the timing tolerance has no influence in the accuracy or resolution of the system, as it is used mainly for internal clock
generation. The only concern to the user is the width of the PWM output pulse, which relates directly to the timing tolerance of the internal
oscillator. This influence however can be cancelled by measuring the complete PWM duty cycle (see Internal Timing Tolerance on page 30).
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AS5140H-ASST-500 | 功能描述:板機接口霍耳效應/磁性傳感器 RoHS:否 制造商:Honeywell 類型:Bipolar Hall-Effect Digital Position Sensor 工作電源電壓:3 V to 24 V 電源電流:3.5 mA 最大輸出電流:20 mA 工作點最小值/最大值:5 G, 55 G 最小/最大釋放點（Brp）:- 55 G, - 5 G 最大工作溫度:+ 150 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23 |
| AS5140HASSU | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:10-Bit 360 Programmable Magnetic Rotary Encoder For High Ambient Temperatures |
| AS5140H-ASSU | 功能描述:IC ENCODER PROG 10-BIT 16-SSOP RoHS:是 類別:傳感器，轉換器 >> 磁性 - 霍爾效應，數字式開關，線性，羅盤 (IC) 系列:- 標準包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數字式，PWM，8.5 位串行 特點:可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
| AS5140H-DB | 制造商:ams 功能描述:AS5140H Demo Board |
| AS5140H-PB | 制造商:ams 功能描述:AS5140H Progamming Board |
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