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參數資料
| 型號： | A1421LK-T |
| 廠商： | Allegro Microsystems Inc |
| 文件頁數： | 1/15頁 |
| 文件大小： | 1197K |
| 描述： | IC SENSOR HALL EFFECT AC 4-SIP |
| 產品培訓模塊： | Current Sensor |
| 標準包裝： | 8,000 |
| 傳感范圍： | 27.5G 跳閘，-12.5G 釋放 |
| 類型： | 專用型 |
| 電源電壓： | 4 V ~ 26.5 V |
| 電流 - 電源： | 7mA |
| 電流 - 輸出（最大）： | 25mA |
| 輸出類型： | 數字，開路集電極 |
| 特點： | 高精度 |
| 工作溫度： | -40°C ~ 150°C |
| 封裝/外殼： | 4-SIP |
| 供應商設備封裝： | 4-SIP |
| 包裝： | 散裝 |
Description
The A1421, A1422, and A1423 are AC-coupled Hall-effect
sensor ICs which include monolithic integrated circuits that
switch in response to changing differential magnetic fields
created by rotating ring magnets or, when coupled with a
magnet, by ferrous targets. This family of devices also includes
an integrated capacitor that provides the high accuracy of analog
sensing without an external filter capacitor. This reduces cost
and components, while improving the reliability of the final
sensor solution.
Magnetic field changes affect the two integrated Hall
transducers and then are differentially amplified on the chip.
Differential design provides immunity to radial vibration,
within the device operating air gap range, by rejection of this
common-mode signal change. Steady-state system offsets
are eliminated using an on-chip differential bandpass filter
with integrated capacitor. This filter also provides relative
immunity to interference from electromagnetic sources. The
device utilizes advanced temperature compensation for the
high-pass filter, sensitivity, and Schmitt trigger switchpoints
to guarantee optimal operation to low frequencies over a wide
range of air gaps and temperatures.
A1421a-DS, Rev. 4
Features and Benefits
" Integrated tracking capacitor
" Used for sensing motion of ring magnet or ferrous targets
" Wide operating temperature range
" Operation with magnetic input signal frequency from
20 Hz to 30 kHz
" EMI/ESD-resistant
" Large effective air gaps
" 4.0 to 26.5 V supply operating range
" Output compatible with CMOS logic families
" Reverse battery protection
" Resistant to mechanical and thermal stress
" Accurate true zero crossing switchpoint (A1421 only)
" High vibration immunity, in running mode (A1423 only)
High Precision Hall Effect AC-Coupled Differential Sensor IC
with Integrated Filter Capacitor
Continued on the next page&
Package: 4 pin SIP (suffix K)
Functional Block Diagram
Not to scale
A1421, A1422, and A1423
Hall
Amp
Regulator
Bandpass Filter Integrated
Tracking Capacitor
VOUT
(Pin 2
)
VCC
(Pin 1)
GND
(Pin 4)
0.1 uF
V
S
+
Diagnostic
Circuitry
Gain
Stage
Dual Hall
Transducers
Comparator
TEST
(Pin 3)
(Required)
V
REF
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相關代理商/技術參數 |
參數描述 |
|---|---|
| A1422 | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:High Accuracy Analog Speed Sensor with Integrated Filter Capacitor |
| A1422LK | 功能描述:IC SENSOR HALL EFFECT AC 4-SIP RoHS:否 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 |
| A1422LK-T | 功能描述:IC SENSOR HALL EFFECT AC 4-SIP 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 |
| A1423 | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:High Precision Hall Effect AC-Coupled Differential Sensor with Integrated Filter Capacitor |
| A14233-000 | 制造商:TE Connectivity 功能描述:HT-SCE-1/4-2.0-9-PB-CS7783 - Bulk |
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