參數(shù)資料
型號(hào)： ATS625LSGTN
廠商： Allegro MicroSystems, Inc.
英文描述： True Zero-Speed Low-Jitter High Accuracy Gear Tooth Sensor
中文描述： 真零高速低抖動(dòng)高精度齒輪齒傳感器
文件頁(yè)數(shù)： 13/21頁(yè)
文件大?。?/td> 625K
代理商： ATS625LSGTN
13
ATS625LSG-DS, Rev. 1
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
True Zero-Speed Low-Jitter High Accuracy Gear Tooth Sensor
ATS625LSG
AGC (Automatic Gain Control)
The AGC feature is implemented by a unique patented self-
calibrating circuitry. After each power-on, the device measures
the peak-to-peak magnetic signal. The gain of the sensor is then
adjusted, keeping the internal signal amplitude constant over the
air gap range of the device, AG. This feature ensures that opera-
tional characteristics are isolated from the effects of changes in
AG. The effect of AGC is shown in figure 7.
Differential Electrical Signal versus Target Rotation
at Various Air Gaps, Without AGC
Differential Electrical Signal versus Target Rotation
at Various Air Gaps, With AGC
0.25 mm
AG:
0.50 mm
1.00 mm
1.50 mm
2.00 mm
0.25 mm
AG:
0.50 mm
1.00 mm
1.50 mm
2.00 mm
Target Rotation (°)
D
P
-1000
-800
-600
-400
-200
0
200
400
600
800
1000
0
3
6
9
12
15
18
21
24
Target Rotation (°)
D
P
-1000
-800
-600
-400
-200
0
200
400
600
800
1000
0
3
6
9
12
15
18
21
24
Offset Adjustment
In addition to normalizing performance over varying AG, the
gain control circuitry also reduces the effect of chip, magnet,
and installation offsets. This is accomplished using two DACs
(D to A converters) that capture the peaks and valleys of the
processed signal, V
PROC
, and use it as a reference for the Thresh-
old Comparator subcircuit, which controls device switching. If
induced offsets bias the absolute signal up or down, AGC and
the dynamic DAC behavior work to normalize and reduce the
impact of the offset on sensor performance.
Figure 7. Effect of AGC. The left panel shows the process signal, V
PROC
, without AGC. The right panel shows the effect with
AGC. The result is a normalized V
PROC
, which allows optimal performance by the rest of the circuits that reference this signal.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ATS625LSGTN-T 功能描述:IC SENSOR GEAR TOOTH 4-SIP RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應(yīng)，數(shù)字式開關(guān)，線性，羅盤 (IC) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉(zhuǎn) 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(shù)字式，PWM，8.5 位串行 特點(diǎn):可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR
ATS625LSGTN-T3 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:True Zero-Speed Low-Jitter High Accuracy Gear Tooth Sensor
ATS627LSG 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:True Zero Speed, Low Jitter, High Accuracy Position Sensor IC
ATS627LSGTN-T 功能描述:IC HALL EFFECT GEAR SENSOR 4-SIP RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應(yīng)，數(shù)字式開關(guān)，線性，羅盤 (IC) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉(zhuǎn) 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(shù)字式，PWM，8.5 位串行 特點(diǎn):可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR
ATS630LSA 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
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