1- and 2-Axis Magnetic Sensors
HMC1001/1002/1021/1022
The
Honeywell
HMC100x
and
HMC102x
magnetic sensors are one and two-axis surface
mount sensors designed for low field magnetic
sensing. By adding supporting signal processing,
cost effective magnetometers or compassing
solutions are enabled. Th ese small, low cost
solutions are easy to assemble for high volume
OEM designs. Applications for the HMC100x and
HMC102x
sensors
include
Compassing,
Navigation Systems, Magnetometry, and Current
Sensing.
The HMC100x and HMC102x sensors utilize Honeywell’s Anisotropic Magnetoresistive (AMR) technology that provides
advantages over coil based magnetic sensors. They are extremely sensitive, low field, solid-state magnetic sensors
designed to measure direction and magnitude of Earth’s magnetic fields, from tens of micro-gauss to 6 gauss.
Honeywell’s Magnetic Sensors are among the most sensitive and reliable low-field sensors in the industry.
Honeywell continues to maintain product excellence and performance by introducing innovative solid-state magnetic
sensor solutions. These are highly reliable, top performance products that are delivered when promised. Honeywell’s
magnetic sensor solutions provide real solutions you can count on.
FEATURES
4
4
4
4
4
4
4
Surface Mount 1 and 2-Axis Sensors
Low Cost
4-Element Wheatstone Bridges
Low Voltage Operations (2.0V)
Available in Tape & Reel Packaging
Patented Offset and Set/Reset Straps
Wide Field Range (up to +/-6 Oe)
BENEFITS
4
Easy to Assemble & Compatible with High Speed SMT Assembly
4
Designed for High Volume, Cost Effective OEM Designs
4
Low Noise Passive Element Design
4
Compatible for Battery Powered Applications
4
High Volume OEM Assembly
4
Stray Magnetic Field Compensation
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Sensor Can Be Used in Strong Magnetic Field Environments
HMC1001/1002/1021/1022
HMC1001/1002 SPECIFICATIONS
Characteristics
Bridge Elements
Supply
Resistance
Operating Temperature
Storage Temperature
Field Range
Linearity Error
Vbridge (Vb) referenced to GND
Bridge current = 10mA
per bridge
Ambient
Ambient, unbiased
Full scale (FS) – total applied field
Best fit straight line
± 1 gauss
± 2 gauss
3 sweeps across ±2 gauss
3 sweeps across ±2 gauss
Output variation after alternate S/R pulses
Vb = 5V, I
SR
= 3A
Bridge Offset
Sensitivity
Noise Density
Resolution
Bandwidth
Disturbing Field
Sensitivity Tempco
Bridge Offset Tempco
Bridge Ohmic Tempco
Cross-Axis Effect
Max. Exposed Field
Set/Reset Straps
Resistance
Current
Resistance Tempco
Offset Straps
Resistance
Offset Constant
Measured from OFF+ to OFF-
DC Current
Field applied in sensitive direction
46
2.5
51
0.39
3.5
56
ohms
mA/gauss
%/°C
Measured from S/R+ to S/R-
0.1% duty cycle, or less, 2µsec current pulse
T
A
= -40 to 125°C
2.0
1.5
3.0
0.37
1.8
5
ohms
Amp
%/°C
Offset = (OUT+) – (OUT-)
Field = 0 gauss after Set pulse, Vb = 8V
Set/Reset Current = 3A
@ 1Hz, Vb=5V
10Hz Bandwidth, Vb=5V
Magnetic signal (lower limit = DC)
Sensitivity starts to degrade.
Use S/R pulse to restore sensitivity.
T
A
= -40 to 125°C, Vb=8V
T
A
= -40 to 125°C, Ibridge=5mA
T
A
= -40 to 125°C, No Set/Reset
T
A
= -40 to 125°C, With Set/Reset
T
A
= -40 to 125°C
Cross field = 1 gauss, Happlied = ±1 gauss
With set/reset
No perming effect on zero reading
5
-0.32
-0.30
-0.06
±0.03
±0.001
0.25
±3
±0.5
10000
gauss
-0.28
-60
2.5
-15
3.2
29
27
5
100
+30
4.0
µV
mV
mV/V/gauss
nV/sqrt Hz
µgauss
MHz
gauss
%/°C
%/°C
%/°C
%FS
-
600
-55
-55
-2
0.1
1.0
0.05
0.05
5.0
850
12
1200
150
175
+2
0.5
2.0
0.10
0.10
Volts
ohms
°C
°C
gauss
%FS
%FS
%FS
Conditions*
Min
Typ
Max
Units
Hysteresis Error
Repeatability Error
S/R Repeatability
Resistance Tempco
T
A
= -40 to 125°C
* Tested at 25°C except stated otherwise.
2
www.honeywell.com
HMC1001/1002/1021/1022
HMC1021/1022 SPECIFICATIONS
Characteristics
Bridge Elements
Supply
Resistance
Operating Temperature
Storage Temperature
Field Range
Linearity Error
Vbridge (Vb) referenced to GND
Bridge current = 10mA
per bridge
Ambient
Ambient, unbiased
Full scale (FS) – total applied field
Best fit straight line
± 1 gauss
± 3 gauss
± 6 gauss
3 sweeps across ±2 gauss
3 sweeps across ±2 gauss
Offset = (OUT+) – (OUT-)
Field = 0 gauss after Set pulse, Vb = 5V
Set/Reset Current = 0.5A
@ 1Hz, Vb=5V
10Hz Bandwidth, Vb=5V
Magnetic signal (lower limit = DC)
Sensitivity starts to degrade.
Use S/R pulse to restore sensitivity.
T
A
= -40 to 125°C, Vb=5V
T
A
= -40 to 125°C, Ibridge=5mA
T
A
= -40 to 125°C, No Set/Reset
T
A
= -40 to 125°C, With Set/Reset
T
A
= -40 to 125°C
Cross field = 1 gauss, Happlied = ±1 gauss
No perming effect on zero reading
20
-0.32
-0.30
-0.06
±0.05
±0.001
0.25
+0.3
10000
-0.28
-10
0.8
2
800
-55
-55
-6
0.05
0.4
1.6
0.08
0.08
±2.5
1.0
48
85
5
+11.25
1.25
5.0
1100
25
1300
150
175
+6
Volts
ohms
°C
°C
gauss
%FS
Conditions*
Min
Typ
Max
Units
Hysteresis Error
Repeatability Error
Bridge Offset
Sensitivity
Noise Density
Resolution
Bandwidth
Disturbing Field
Sensitivity Tempco
Bridge Offset Tempco
Bridge Ohmic Tempco
Cross-Axis Effect
Max. Exposed Field
Set/Reset Straps
Resistance
Current
Resistance Tempco
Offset Straps
Resistance
Offset Constant
%FS
%FS
mV
mV/V/gauss
nV/sqrt Hz
µgauss
MHz
gauss
%/°C
%/°C
%/°C
%FS
gauss
Measured from S/R+ to S/R-
0.1% duty cycle, or less, 2µsec current pulse
T
A
= -40 to 125°C
5.5
0.5
7.7
0.5
0.37
9
4.0
ohms
Amp
%/°C
Measured from OFF+ to OFF-
DC Current
Field applied in sensitive direction
38
4.0
50
4.6
0.39
60
6.0
ohms
mA/gauss
%/°C
Resistance Tempco
T
A
= -40 to 125°C
* Tested at 25°C except stated otherwise.
www.honeywell.com
3
HMC1001/1002/1021/1022
KEY PERFORMANCE DATA
4
www.honeywell.com
HMC1001/1002/1021/1022
PACKAGE / PINOUT SPECIFICATIONS
Arrow indicates direction of applied field that generates a positive output voltage after a SET pulse.
BASIC DEVICE OPERATION
The Honeywell HMC100x and HMC102x Anisotropic Magneto-Resistive (AMR) sensors are simple resistive Wheatstone
bridges to measure magnetic fields and only require a supply voltage for the measurement. With power supply applied to
the bridges, the sensors convert any incident magnetic field in the sensitive axis directions to a differential voltage outputs.
In addition to the bridge circuits, each sensor has two on-chip magnetically coupled straps; the offset strap and the
set/reset strap. These straps are Honeywell patented features for incident field adjustment and magnetic domain
alignment; and eliminate the need for external coils positioned around the sensors.
The magnetoresistive sensors are made of a nickel-iron (Permalloy) thin-film deposited on a silicon wafer and patterned
as a resistive strip element. In the presence of a magnetic field, a change in the bridge resistive elements causes a
corresponding change in voltage across the bridge outputs.
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5
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