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ACS713
Fully Integrated, Hall Effect-Based Linear Current Sensor IC
with 2.1 kVRMS Isolation and a Low-Resistance Current Conductor
Chopper Stabilization Technique
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 undesired DC offset signal
from the magnetically induced signal in the frequency domain.
Then, using a low-pass filter, the modulated DC offset is sup-
pressed while the magnetically induced signal passes through
the filter. As a result of this chopper stabilization approach, the
output voltage from the Hall IC is desensitized to the effects
of temperature 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, Box 15036
10
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
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相关代理商/技术参数
ACS713ELCTR-20A-T 制造商:Allegro MicroSystems 功能描述:Hall Effect-Based Linear Current Sensor
ACS713ELCTR-30A-T 功能描述:SENSOR CURRENT 30A 5V UNI 8-SOIC RoHS:是 类别:传感器，转换器 >> 电流 系列:- 标准包装:10 系列:*
ACS713ELCTR-30A-T 制造商:Allegro MicroSystems 功能描述:Hall Effect-Based Linear Current Sensor
ACS714 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor
ACS714_13 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor IC with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor
ACS714ELCTR-05B-T 功能描述:SENSOR CURRENT 5A 5V BI 8-SOIC RoHS:是 类别:传感器，转换器 >> 电流 系列:- 标准包装:10 系列:*
ACS714ELCTR-20A 制造商:Allegro MicroSystems LLC 功能描述:
ACS714ELCTR-20A-T 功能描述:SENSOR CURRENT 20A 5V BI 8-SOIC RoHS:是 类别:传感器，转换器 >> 电流 系列:- 标准包装:10 系列:*