ACS713ELCTR-20A-T Allegro Microsystems Inc, ACS713ELCTR-20A-T Datasheet - Page 10

• Manufacturer Part Number: ACS713ELCTR-20A-T
• Description: Hall Effect-Based Linear Current Sensor
• Manufacturer: Allegro Microsystems Inc
• Series: -r

Specifications of ACS713ELCTR-20A-T

• Accuracy %: 1.5%
• Output Current: 10mA
• Termination Type: SMD
• Bandwidth: 80kHz
• Supply Voltage Max: 5V
• Primary Sensed Current +: 20A
• Primary Sensed Current -: 20A
• Leaded Process Compatible: Yes
• Current - Sensing: 20A
• Accuracy: ±1.5%
• Sensitivity: 178 ~ 190 mV/A
• Current - Supply: 10mA
• Sensor Type: Hall Effect
• Voltage - Supply: 4.5 V ~ 5.5 V
• Output: 500mV
• Frequency: 80kHz
• Response Time: 5µs
• Polarization: Unidirectional
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Hall Effect Type: Linear
• No. Of Pins: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ACS713
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
Hall Element
with 2.1 kVRMS Isolation and a Low-Resistance Current Conductor
Chopper Stabilization Technique
Regulator
Fully Integrated, Hall Effect-Based Linear Current Sensor IC
Concept of Chopper Stabilization Technique
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.
Clock/Logic
Amp
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
Low-Pass
Filter
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