参数资料
型号: ACS759KCB-150B-PFF-T
厂商: Allegro Microsystems Inc
文件页数: 16/19页
文件大小: 0K
描述: SENSOR CURRENT
特色产品: ACS759 Series
标准包装: 34
电流 - 感应: ±12.5A
精确度: ±2.2%
灵敏度: 56mV/A
电流 - 电源: 11mA
传感器类型: 霍尔效应
电源电压: 3 V ~ 5.5 V
输出: 2.5V
频率: 120kHz
响应时间: 4µs
电极标记: 双向
工作温度: -40°C ~ 125°C
封装/外壳: 5-CB 成形引线
包装: 管件
其它名称: 620-1464-5
ACS759xCB
Chopper Stabilization Technique
Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC
With 100 μ Ω Current Conductor and Optimized Performance at 3.3 V
Chopper Stabilization is an innovative circuit technique that is
used to minimize the offset voltage of a Hall element and an asso-
ciated on-chip amplifier. Allegro patented a Chopper Stabiliza-
tion technique that nearly eliminates Hall IC output drift induced
by temperature or package stress effects.
This offset reduction technique is based on a signal modulation-
demodulation process. Modulation is used to separate the unde-
sired DC offset signal from the magnetically induced signal in the
frequency domain. Then, using a low-pass filter, the modulated
DC offset is suppressed while the magnetically induced signal
passes through the filter. The anti-aliasing filter prevents aliasing
from happening in applications with high frequency signal com-
ponents which are beyond the user ’s frequency range of interest.
As a result of this chopper stabilization approach, the output
voltage from the Hall IC is desensitized to the effects of tempera-
ture and mechanical stress. This technique produces devices that
have an extremely stable Electrical Offset Voltage, are immune to
thermal stress, and have precise recoverability after temperature
cycling.
This technique is made possible through the use of a BiCMOS
process that allows the use of low-offset and low-noise amplifiers
in combination with high-density logic integration and sample
and hold circuits.
Regulator
Clock/Logic
Hall Element
Amp
Concept of Chopper Stabilization Technique
Low-Pass
Filter
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
16
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ACS759KCB-150B-PSS-T 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:The Allegro ACS759 family of current sensor ICs provides economical and precise solutions for AC or DC current sensing.
ACS759LCB-050B-PFF-T 功能描述:SENSOR CURRENT RoHS:是 类别:传感器,转换器 >> 电流 系列:- 标准包装:10 系列:*
ACS759LCB-100B-PFF-T 功能描述:SENSOR CURRENT RoHS:是 类别:传感器,转换器 >> 电流 系列:- 标准包装:10 系列:*
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ACS760ELF-20B 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:12 V High-Side Hot-Swap Hall Effect Based Current Monitor