Not to scale
The Allegro™ ACS722 current sensor IC is an economical and
precise solution for AC or DC current sensing in industrial,
commercial, and communications systems. The small package
is ideal for space constrained applications while also saving
costs due to reduced board area. Typical applications include
motor control, load detection and management, switched-mode
power supplies, and overcurrent fault protection.
The device consists of a precise, low-offset, linear Hall
sensor circuit with a copper conduction path located near the
surface of the die. Applied current flowing through this copper
conduction path generates a magnetic field which is sensed by
the integrated Hall IC and converted into a proportional voltage.
Device accuracy is optimized through the close proximity of the
magnetic field to the Hall transducer. A precise, proportional
voltage is provided by the low-offset, chopper-stabilized
BiCMOS Hall IC, which includes Allegro’s patented digital
temperature compensation, resulting in extremely accurate
performance over temperature. The output of the device has
a positive slope when an increasing current flows through the
primary copper conduction path (from pins 1 and 2, to pins 3
and 4), which is the path used for current sensing. The internal
resistance of this conductive path is 0.65 mΩ typical, providing
low power loss.
The terminals of the conductive path are electrically isolated
from the sensor leads (pins 5 through 8). This allows the
ACS722 current sensor IC to be used in high-side current sense
applications without the use of high-side differential amplifiers
or other costly isolation techniques.
The ACS722 is provided in a small, low profile surface mount
SOIC8 package. The leadframe is plated with 100% matte tin,
ACS722-DS, Rev. 4
MCO-0000537
• Patented integrated digital temperature compensation
circuitry allows for near closed loop accuracy over
temperature in an open loop sensor
• UL60950-1 (ed. 2) certified
□Dielectric Strength Voltage = 2.4 kVrms
□Basic Isolation Working Voltage = 420 Vpk/297
Vrms
• Industry-leading noise performance with greatly
improved bandwidth through proprietary amplifier and
filter design techniques
• Pin-selectable band width: 80 kHz for high bandwidth
applications or 20 kHz for low noise performance
• 0.65 mΩ primary conductor resistance for low power
loss and high inrush current withstand capability
• Small footprint, low-profile SOIC8 package suitable for
space-constrained applications
• Integrated shield virtually eliminates capacitive coupling
from current conductor to die, greatly suppressing output
noise due to high dv/dt transients
• 3 to 3.6 V, single supply operation
High Accuracy, Galvanically Isolated Current Sensor IC
with Small Footprint SOIC8 Package
Continued on the next page…
Package: 8-pin SOIC (su󰀨 ix LC)
Typical Application
P
P
P
L
CBYPASS
0.1 µF
ACS722
C
2
1
3
4
6
8
5
7
IP+ VCC
–I
+I
IP+ VIOUT
IP–
IP–
BW_SEL
GND
I
The ACS722 outputs an analog
signal, VIOUT , that changes,
proportionally, with the
bidirectional AC or DC primary
sensed current, IP , within
the specified measurement
range. The BW_SEL pin can
be used to select one of the
two bandwidths to optimize the
noise performance. Grounding
the BW_SEL pin puts the part
in the high bandwidth (80 kHz)
mode.
Continued on the next page…
FEATURES AND BENEFITS DESCRIPTION
ACS722
June 3, 2019
TÜV America
Certificate Number:
U8V 18 02 54214 041
CB 14 11 54214 031
UL Certied File
No.: US-32848-UL
High Accuracy, Galvanically Isolated Current Sensor IC
with Small Footprint SOIC8 Package
ACS722
2
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Selection Guide
Part Number IPR (A)
Sens(Typ)
at VCC = 3.3 V
(mV/A)
TA (°C) Packing1
ACS722LLCTR-05AB-T2±5 264
-40 to 150 Tape and Reel, 3000 pieces per reel
ACS722LLCTR-10AU-T210
ACS722LLCTR-10AB-T2±10 132
ACS722LLCTR-20AU-T220
ACS722LLCTR-20AB-T2±20 66
ACS722LLCTR-40AU-T240
ACS722LLCTR-40AB-T2±40 33
1Contact Allegro for additional packing options.
2Variant not intended for automotive applications.
which is compatible with standard lead (Pb) free printed circuit
board assembly processes. Internally, the device is Pb-free, except
for flip-chip high-temperature Pb-based solder balls, currently
exempt from RoHS. The device is fully calibrated prior to shipment
from the factory.
Description (continued)
• Output voltage proportional to AC or DC current
• Factory-trimmed sensitivity and quiescent output voltage for
improved accuracy
• Chopper stabilization results in extremely stable quiescent
output voltage
• Nearly zero magnetic hysteresis
• Ratiometric output from supply voltage
Features and Benefits (continued)
High Accuracy, Galvanically Isolated Current Sensor IC
with Small Footprint SOIC8 Package
ACS722
3
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Thermal Characteristics
Characteristic Symbol Test Conditions* Value Units
Package Thermal Resistance
(Junction to Ambient) RθJA
Mounted on the Allegro 85-0593 evaluation board with 400 mm2 of
4 oz. copper on each side, connected to pins 1 and 2, and to pins 3
and 4, with thermal vias connecting the layers. Performance values
include the power consumed by the PCB.
23 ºC/W
Package Thermal Resistance
(Junction to Lead) RθJL Mounted on the Allegro ASEK 722 evaluation board. 5 ºC/W
*Additional thermal information available on the Allegro website.
Isolation Characteristics
Characteristic Symbol Notes Rating Unit
Dielectric Strength Test Voltage VISO
Agency type-tested for 60 seconds per UL 60950-1 (edition.
2). Production tested at VISO for 1 second, in accordance
with UL 60950-1 (edition. 2).
2400 VRMS
Working Voltage for Basic Isolation VWVBI Maximum approved working voltage for basic (single)
isolation according UL 60950-1 (edition 2).
420 VPK or VDC
297 VRMS
Clearance Dcl Minimum distance through air from IP leads to signal leads. 3.9 mm
Creepage Dcr Minimum distance along package body from IP leads to
signal leads. 3.9 mm
Absolute Maximum Ratings
Characteristic Symbol Notes Rating Units
Supply Voltage VCC 6 V
Reverse Supply Voltage VRCC –0.1 V
Output Voltage VIOUT 25 V
Reverse Output Voltage VRIOUT –0.1 V
Operating Ambient Temperature TARange L –40 to 150 °C
Junction Temperature TJ(max) 165 °C
Storage Temperature Tstg –65 to 165 °C
SPECIFICATIONS
High Accuracy, Galvanically Isolated Current Sensor IC
with Small Footprint SOIC8 Package
ACS722
4
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Dynamic Offset
Cancellation
Master Current
Supply Programming
Control
EEPROM and
Control Logic
Offset
Control
Sensitivity
Control
Tuned
Filter
Temperature
Sensor
Hall
Current
Drive
POR
To All Subcircuits
IP+
IP+
IP–
IP–
VCC
VIOUT
GND
BW_SEL
Functional Block Diagram
High Accuracy, Galvanically Isolated Current Sensor IC
with Small Footprint SOIC8 Package
ACS722
5
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Terminal List Table
Number Name Description
1, 2 IP+ Terminals for current being sensed; fused internally
3, 4 IP– Terminals for current being sensed; fused internally
5 GND Signal ground terminal
6 BW_SEL Terminal for selecting 20 kHz or 80 kHz bandwidth
7 VIOUT Analog output signal
8 VCC Device power supply terminal
IP+
IP+
IP–
IP–
VCC
VIOUT
BW_SEL
GND
1
2
3
4
8
7
6
5
Pin-out Diagram
Pin-out Diagram and Terminal List
High Accuracy, Galvanically Isolated Current Sensor IC
with Small Footprint SOIC8 Package
ACS722
6
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
COMMON ELECTRICAL CHARACTERISTICS1: valid through the full range of TA = –40°C to 150°C
, and at VCC
=
3.3 V; unless otherwise specif ied
Characteristic Symbol Test Conditions Min. Typ. Max. Units
Supply Voltage VCC 3 3.3 3.6 V
Supply Current ICC VCC within VCC(min) and VCC(max) – 9 12 mA
Output Capacitance Load CLVIOUT to GND – – 10 nF
Output Resistive Load RLVIOUT to GND 4.7 – – kΩ
Primary Conductor Resistance RIP TA = 25°C – 0.65 – mΩ
Magnetic Coupling Factor CF– 10 – G/A
Rise Time tr
IP = IP(max), TA = 25°C, CL = 1 nF,
BW_SEL tied to GND – 4 – μs
IP = IP(max), TA = 25°C, CL = 1 nF,
BW_SEL tied to VCC – 17.5 – μs
Propagation Delay tpd
IP = IP(max), TA = 25°C, CL = 1 nF,
BW_SEL tied to GND – 1 – μs
IP = IP(max), TA = 25°C, CL = 1 nF,
BW_SEL tied to VCC – 5 – μs
Response Time tRESPONSE
IP = IP(max), TA = 25°C, CL = 1 nF,
BW_SEL tied to GND – 5 – μs
IP = IP(max), TA = 25°C, CL = 1 nF,
BW_SEL tied to VCC – 22.5 – μs
Internal Bandwidth BWi
Small signal –3 dB; CL = 1 nF,
BW_SEL tied to GND – 80 – kHz
Small signal –3 dB; CL = 1nF,
BW_SEL tied to VCC – 20 – kHz
Noise Density IND Input referenced noise density;
TA = 25°C, CL = 1 nF – 150 – µA(rms)/
√Hz
Noise IN
Input referenced noise; BWi = 80 kHz,
TA = 25°C, CL = 1 nF – 42 – mA(rms)
Input referenced noise; BWi = 20 kHz,
TA = 25°C, CL = 1 nF – 21 – mA(rms)
Nonlinearity ELIN Through full range of IP– ±1 %
Saturation Voltage2VOH RL = 4.7 kΩ, TA = 25°C VCC –
0.33 – – V
VOL RL = 4.7 kΩ, TA = 25°C – – 0.33 V
Power-On Time tPO Output reaches 90% of steady-state
level, TA = 25°C, IP = IPR(max) applied – 64 – μs
1Device may be operated at higher primary current levels, IP , ambient temperatures, TA , and internal leadframe temperatures, provided the Maximum Junction Tem-
perature, TJ(max), is not exceeded.
2The sensor IC will continue to respond to current beyond the range of IP until the high or low saturation voltage; however, the nonlinearity in this region will be
worse than through the rest of the measurement range.
High Accuracy, Galvanically Isolated Current Sensor IC
with Small Footprint SOIC8 Package
ACS722
7
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
xLLCTR-5AB PERFORMANCE CHARACTERISTICS: TA Range L, valid at TA = – 40°C to 150°C, VCC = 3.3 V, unless oth-
erwise specif ied
Characteristic Symbol Test Conditions Min. Typ. Max. Units
Nominal Performance
Current Sensing Range IPR –5 – 5 A
Sensitivity Sens IPR(min) < IP < IPR(max) – 264 – mV/A
Zero Current Output Voltage VIOUT(Q) Bidirectional; IP = 0 A – VCC x
0.5 – V
Accuracy Performance
Sensitivity Error Esens
TA = 25°C to 150°C; measured at IP = IPR(max) –2 – 2 %
TA = –40°C to 25°C; ; measured at IP = IPR(max) – ±2.5 – %
Offset Voltage1VOE
IP = 0 A; TA = 25°C to 150°C –15 – 15 mV
IP = 0 A; TA = -40°C to 25°C – ±20 – mV
Total Output Error2ETOT
IP = IPR(max), TA = 25°C to 150°C –2.5 – 2.5 %
IP = IPR(max), TA = –40°C to 25°C – ±3 – %
Lifetime Drift Characteristics
Sensitivity Error Lifetime Drift Esens_drift – ±2 – %
Total Output Error Lifetime
Drift Etot_drift – ±2 – %
1 Offset Voltage does not incorporate any error due to external magnetic fields. See section: Impact of External Magnetic Fields.
2 Percentage of IP
, with IP = IPR(max)
High Accuracy, Galvanically Isolated Current Sensor IC
with Small Footprint SOIC8 Package
ACS722
8
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
xLLCTR-10AU PERFORMANCE CHARACTERISTICS: TA Range L, valid at TA = – 40°C to 150°C, VCC = 3.3 V, unless
otherwise specif ied
Characteristic Symbol Test Conditions Min. Typ. Max. Units
Nominal Performance
Current Sensing Range IPR 0 – 10 A
Sensitivity Sens IPR(min) < IP < IPR(max) – 264 – mV/A
Zero Current Output Voltage VIOUT(Q) Unidirectional; IP = 0 A – VCC x
0.1 – V
Accuracy Performance
Sensitivity Error Esens
TA = 25°C to 150°C; measured at IP = IPR(max) –2 – 2 %
TA = –40°C to 25°C; ; measured at IP = IPR(max) – ±2.5 – %
Offset Voltage1VOE
IP = 0 A; TA = 25°C to 150°C –15 – 15 mV
IP = 0 A; TA = -40°C to 25°C – ±20 – mV
Total Output Error2ETOT
IP = IPR(max), TA = 25°C to 150°C –2.5 – 2.5 %
IP = IPR(max), TA = –40°C to 25°C – ±3 – %
Lifetime Drift Characteristics
Sensitivity Error Lifetime Drift Esens_drift – ±2 – %
Total Output Error Lifetime
Drift Etot_drift – ±2 – %
1 Offset Voltage does not incorporate any error due to external magnetic fields. See section: Impact of External Magnetic Fields.
2 Percentage of IP
, with IP = IPR(max)
xLLCTR-10AB PERFORMANCE CHARACTERISTICS: TA Range L, valid at TA = – 40°C to 150°C, VCC = 3.3 V, unless
otherwise specif ied
Characteristic Symbol Test Conditions Min. Typ. Max. Units
Nominal Performance
Current Sensing Range IPR –10 – 10 A
Sensitivity Sens IPR(min) < IP < IPR(max) – 132 – mV/A
Zero Current Output Voltage VIOUT(Q) Bidirectional; IP = 0 A – VCC x
0.5 – V
Accuracy Performance
Sensitivity Error Esens
TA = 25°C to 150°C; measured at IP = IPR(max) –1.5 – 1.5 %
TA = –40°C to 25°C; ; measured at IP = IPR(max) – ±2 – %
Offset Voltage1VOE
IP = 0 A; TA = 25°C to 150°C –10 – 10 mV
IP = 0 A; TA = -40°C to 25°C – ±15 – mV
Total Output Error2ETOT
IP = IPR(max), TA = 25°C to 150°C –2 – 2 %
IP = IPR(max), TA = –40°C to 25°C – ±3 – %
Lifetime Drift Characteristics
Sensitivity Error Lifetime Drift Esens_drift – ±2 – %
Total Output Error Lifetime
Drift Etot_drift – ±2 – %
1 Offset Voltage does not incorporate any error due to external magnetic fields. See section: Impact of External Magnetic Fields.
2 Percentage of IP
, with IP = IPR(max)
High Accuracy, Galvanically Isolated Current Sensor IC
with Small Footprint SOIC8 Package
ACS722
9
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
xLLCTR-20AU PERFORMANCE CHARACTERISTICS: TA Range L, valid at TA = – 40°C to 150°C, VCC = 3.3 V, unless
otherwise specif ied
Characteristic Symbol Test Conditions Min. Typ. Max. Units
Nominal Performance
Current Sensing Range IPR 0 – 20 A
Sensitivity Sens IPR(min) < IP < IPR(max) – 132 – mV/A
Zero Current Output Voltage VIOUT(Q) Unidirectional; IP = 0 A – VCC x
0.1 – V
Accuracy Performance
Sensitivity Error Esens
TA = 25°C to 150°C; measured at IP = IPR(max) –1.5 – 1.5 %
TA = –40°C to 25°C; ; measured at IP = IPR(max) – ±2 – %
Offset Voltage1VOE
IP = 0 A; TA = 25°C to 150°C –10 – 10 mV
IP = 0 A; TA = -40°C to 25°C – ±15 – mV
Total Output Error2ETOT
IP = IPR(max), TA = 25°C to 150°C –2 – 2 %
IP = IPR(max), TA = –40°C to 25°C – ±3 – %
Lifetime Drift Characteristics
Sensitivity Error Lifetime Drift Esens_drift – ±2 – %
Total Output Error Lifetime
Drift Etot_drift – ±2 – %
1 Offset Voltage does not incorporate any error due to external magnetic fields. See section: Impact of External Magnetic Fields.
2 Percentage of IP
, with IP = IPR(max)
xLLCTR-20AB PERFORMANCE CHARACTERISTICS: TA Range L, valid at TA = – 40°C to 150°C, VCC = 3.3 V, unless
otherwise specif ied
Characteristic Symbol Test Conditions Min. Typ. Max. Units
Nominal Performance
Current Sensing Range IPR –20 – 20 A
Sensitivity Sens IPR(min) < IP < IPR(max) – 66 – mV/A
Zero Current Output Voltage VIOUT(Q) Bidirectional; IP = 0 A – VCC x
0.5 – V
Accuracy Performance
Sensitivity Error Esens
TA = 25°C to 150°C; measured at IP = IPR(max) –1.5 – 1.5 %
TA = –40°C to 25°C; ; measured at IP = IPR(max) – ±2 – %
Offset Voltage1VOE
IP = 0 A; TA = 25°C to 150°C –10 – 10 mV
IP = 0 A; TA = -40°C to 25°C – ±15 – mV
Total Output Error2ETOT
IP = IPR(max), TA = 25°C to 150°C –2 – 2 %
IP = IPR(max), TA = –40°C to 25°C – ±3 – %
Lifetime Drift Characteristics
Sensitivity Error Lifetime Drift Esens_drift – ±2 – %
Total Output Error Lifetime
Drift Etot_drift – ±2 – %
1 Offset Voltage does not incorporate any error due to external magnetic fields. See section: Impact of External Magnetic Fields.
2 Percentage of IP
, with IP = IPR(max)
High Accuracy, Galvanically Isolated Current Sensor IC
with Small Footprint SOIC8 Package
ACS722
10
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
xLLCTR-40AU PERFORMANCE CHARACTERISTICS: TA Range L, valid at TA = – 40°C to 150°C, VCC = 3.3 V, unless
otherwise specif ied
Characteristic Symbol Test Conditions Min. Typ. Max. Units
Nominal Performance
Current Sensing Range IPR 0 – 40 A
Sensitivity Sens IPR(min) < IP < IPR(max) – 66 – mV/A
Zero Current Output Voltage VIOUT(Q) Unidirectional; IP = 0 A – VCC x
0.1 – V
Accuracy Performance
Sensitivity Error Esens
TA = 25°C to 150°C; measured at IP = IPR(max) –1.5 – 1.5 %
TA = –40°C to 25°C; ; measured at IP = IPR(max) – ±2 – %
Offset Voltage1VOE
IP = 0 A; TA = 25°C to 150°C –10 – 10 mV
IP = 0 A; TA = -40°C to 25°C – ±15 – mV
Total Output Error2ETOT
IP = IPR(max), TA = 25°C to 150°C –2 – 2 %
IP = IPR(max), TA = –40°C to 25°C – ±3 – %
Lifetime Drift Characteristics
Sensitivity Error Lifetime Drift Esens_drift – ±2 – %
Total Output Error Lifetime
Drift Etot_drift – ±2 – %
1 Offset Voltage does not incorporate any error due to external magnetic fields. See section: Impact of External Magnetic Fields.
2 Percentage of IP
, with IP = IPR(max)
xLLCTR-40AB PERFORMANCE CHARACTERISTICS: TA Range L, valid at TA = – 40°C to 150°C, VCC = 3.3 V, unless
otherwise specif ied
Characteristic Symbol Test Conditions Min. Typ. Max. Units
Nominal Performance
Current Sensing Range IPR –40 – 40 A
Sensitivity Sens IPR(min) < IP < IPR(max) – 33 – mV/A
Zero Current Output Voltage VIOUT(Q) Bidirectional; IP = 0 A – VCC x
0.5 – V
Accuracy Performance
Sensitivity Error Esens
TA = 25°C to 150°C; measured at IP = IPR(max) –1.5 – 1.5 %
TA = –40°C to 25°C; ; measured at IP = IPR(max) – ±2 – %
Offset Voltage1VOE
IP = 0 A; TA = 25°C to 150°C –10 – 10 mV
IP = 0 A; TA = -40°C to 25°C – ±15 – mV
Total Output Error2ETOT
IP = IPR(max), TA = 25°C to 150°C –2 – 2 %
IP = IPR(max), TA = –40°C to 25°C – ±3 – %
Lifetime Drift Characteristics
Sensitivity Error Lifetime Drift Esens_drift – ±2 – %
Total Output Error Lifetime
Drift Etot_drift – ±2 – %
1 Offset Voltage does not incorporate any error due to external magnetic fields. See section: Impact of External Magnetic Fields.
2 Percentage of IP
, with IP = IPR(max)
High Accuracy, Galvanically Isolated Current Sensor IC
with Small Footprint SOIC8 Package
ACS722
11
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
CHARACTERISTIC PERFORMANCE
Zero Current Output Voltage vs. Temperature
Offset Voltage vs. Temperature
Sensitivity vs. Temperature
Nonlinearity vs. Temperature Total Error at I vs. Temperature
PR(max)
Sensitivity Error vs. Temperature
Temperature (ºC)
Offset Voltage (mV)
-50 -50
-50
-50
-50
-50
00
0
0
0
0
50 50
50
50
50
50
100 100
100
100
100
100
150 150
150
150
150
150
Temperature (ºC)
1600
258 -4
1610
260 -3
1620
262 -2
1630
264 -1
1660
270 2
1640
266 0
1670
272 3
1650
268 1
1680
274 4
V (mV)
IOUT(Q)
Temperature (ºC)
Sensitivity (mV/A)
Temperature (ºC)
Sensitivity Error (%)
Temperature (ºC)
Total Error (%)
Temperature (ºC)
Nonlinearity (%)
-1.00 -5
-0.80 -4
-0.40 -2
-0.20 -1
0.00 0
0.20 1
0.80 4
0.60 3
1.00 5
+3 Sigma Average -3 Sigma
-50
-40
-30
-20
10
-10
20
0
30
0.40 2
-0.60 -3
xLLCTR-5AB Key Parameters
High Accuracy, Galvanically Isolated Current Sensor IC
with Small Footprint SOIC8 Package
ACS722
12
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Zero Current Output Voltage vs. Temperature
Offset Voltage vs. Temperature
Sensitivity vs. Temperature
Nonlinearity vs. Temperature Total Error at I vs. Temperature
PR(max)
Sensitivity Error vs. Temperature
Temperature (ºC)
Offset Voltage (mV)
-50 -50
-50
-50
-50
-50
00
0
0
0
0
50 50
50
50
50
50
100 100
100
100
100
100
150 150
150
150
150
150
Temperature (ºC)
1635 -15
129 -4
130 -3
1640 -10
131 -2
1645 -5
132 -1
1655 5
135 2
133 0
136 3
1650 0
134 1
1660 10
137 4
V (mV)
IOUT(Q)
Temperature (ºC)
Sensitivity (mV/A)
Temperature (ºC)
Sensitivity Error (%)
Temperature (ºC)
Total Error (%)
Temperature (ºC)
Nonlinearity (%)
-1.00 -5
-0.80 -4
-0.40 -2
-0.20 -1
0.00 0
0.20 1
0.80 4
0.60 3
1.00 5
+3 Sigma Average -3 Sigma
0.40 2
-0.60 -3
xLLCTR-10AB Key Parameters
High Accuracy, Galvanically Isolated Current Sensor IC
with Small Footprint SOIC8 Package
ACS722
13
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Zero Current Output Voltage vs. Temperature
Offset Voltage vs. Temperature
Sensitivity vs. Temperature
Nonlinearity vs. Temperature Total Error at I vs. Temperature
PR(max)
Sensitivity Error vs. Temperature
Temperature (ºC)
Offset Voltage (mV)
-50 -50
-50
-50
-50
-50
00
0
0
0
0
50 50
50
50
50
50
100 100
100
100
100
100
150 150
150
150
150
150
Temperature (ºC)
256
300 -30
-4
258
305 -25
-3
262
310 -20
-2
264
315 -15
-1
272
330 0
2
266
320 -10
0
274
335 5
3
268
325 -5
1
276
340 10
5
V (mV)
IOUT(Q)
Temperature (ºC)
Sensitivity (mV/A)
Temperature (ºC)
Sensitivity Error (%)
Temperature (ºC)
Total Error (%)
Temperature (ºC)
Nonlinearity (%)
-1.00 -5
-0.80 -4
-0.40 -2
-0.20 -1
0.00 0
0.20 1
0.80 4
0.60 3
1.00 5
+3 Sigma Average -3 Sigma
0.40 2
-0.60 -3
270
260
4
xLLCTR-10AU Key Parameters
High Accuracy, Galvanically Isolated Current Sensor IC
with Small Footprint SOIC8 Package
ACS722
14
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Zero Current Output Voltage vs. Temperature
Offset Voltage vs. Temperature
Sensitivity vs. Temperature
Nonlinearity vs. Temperature Total Error at I vs. Temperature
PR(max)
Sensitivity Error vs. Temperature
Temperature (ºC)
Offset Voltage (mV)
-50 -50
-50
-50
-50
-50
00
0
0
0
0
50 50
50
50
50
50
100 100
100
100
100
100
150 150
150
150
150
150
Temperature (ºC)
65
1634 1634
-4
65
1636 1636
-3
66
1638 1638
-2
67
1640 1640
-1
68
1648 1648
2
1644 1644
0
69
1650 1650
3
67
1646 1646
1
69
1652 1652
5
V (mV)
IOUT(Q)
Temperature (ºC)
Sensitivity (mV/A)
Temperature (ºC)
Sensitivity Error (%)
Temperature (ºC)
Total Error (%)
Temperature (ºC)
Nonlinearity (%)
-1.00 -6
-0.80
-4
-0.40 -2
-0.20
0.00 0
0.20
0.80
4
0.60
1.00 6
+3 Sigma Average -3 Sigma
0.40 2
-0.60
68
66
4
1642 1642
xLLCTR-20AB Key Parameters
High Accuracy, Galvanically Isolated Current Sensor IC
with Small Footprint SOIC8 Package
ACS722
15
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Zero Current Output Voltage vs. Temperature
Offset Voltage vs. Temperature
Sensitivity vs. Temperature
Nonlinearity vs. Temperature Total Error at I vs. Temperature
PR(max)
Sensitivity Error vs. Temperature
Temperature (ºC)
Offset Voltage (mV)
-50 -50
-50
-50
-50
-50
0
0
0
0
0
0
50
50
50
50
50
50
100
100
100
100
100
100
150
150
150
150
150
150
Temperature (ºC)
129
310 -20
-4
130
315 -15
-3
132
-2
133
320 -10
-1
137
2
325 -5
0
138
335 5
3
135
330 0
1
139
340 10
5
V (mV)
IOUT(Q)
Temperature (ºC)
Sensitivity (mV/A)
Temperature (ºC)
Sensitivity Error (%)
Temperature (ºC)
Total Error (%)
Temperature (ºC)
Nonlinearity (%)
-1.00 -5
-0.80 -4
-0.40 -2
-0.20 -1
0.00 0
0.20 1
0.80 4
0.60 3
1.00 5
+3 Sigma Average -3 Sigma
0.40 2
-0.60 -3
136
131
4
134
xLLCTR-20AU Key Parameters
High Accuracy, Galvanically Isolated Current Sensor IC
with Small Footprint SOIC8 Package
ACS722
16
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Zero Current Output Voltage vs. Temperature
Offset Voltage vs. Temperature
Sensitivity vs. Temperature
Nonlinearity vs. Temperature Total Error at I vs. Temperature
PR(max)
Sensitivity Error vs. Temperature
Temperature (ºC)
Offset Voltage (mV)
-50 -50
-50
-50
-50
-50
0
0
0
0
0
0
50
50
50
50
50
50
100
100
100
100
100
100
150
150
150
150
150
150
Temperature (ºC)
32
1634 -16
-4
1636 -14
-3
33
1640 -10
-2
1642 -8
-1
35
1650 0
2
0
1652 2
3
1646 -4
1
35
1654 4
6
V (mV)
IOUT(Q)
Temperature (ºC)
Sensitivity (mV/A)
Temperature (ºC)
Sensitivity Error (%)
Temperature (ºC)
Total Error (%)
Temperature (ºC)
Nonlinearity (%)
-1.00 -5
-0.80 -4
-0.40 -2
-0.20 -1
0.00 0
0.20 1
0.80 4
0.60 3
1.00 5
+3 Sigma Average -3 Sigma
0.40 2
-0.60 -3
34
1648 -2
33
1638 -12
4
34
1644 -6
5
xLLCTR-40AB Key Parameters