High Temperature Products
Advance Information
HIGH TEMPERATURE MAGNETIC SENSORS
APPLICATIONS*
• Down-Hole Compassing/Heading Sensing
• Replace Expensive Fluxgate Sensors
• Proximity Sensing
• Position/Angle Sensing
• Replace Hall Effect Sensors
• Signal Transformation (Isolation)
• Current Measurement
*See HMC1001/2 1021/2 Family data sheet for more information
HTMC1001D
HTMC1021D
FEATURES
• Ceramic Dip Package
• Reliable For -55 to +225°C Operation
•
±2
Gauss Field Range (HTMC1001D
±6
Gauss Field Range (HTMC1021D)
• 1mV/V/Oersted Sensitivity (Room Temp)
• Patented On-Chip Straps Require Low Voltage
Set/Reset Pulse
HTMC 1001D PINOUT / PACKAGE
OUT+ 1
VBRIDGE 2
GND 3
OUT- 4
DIE
8 S/R-
MR SENSOR CIRCUIT
VBRIDGE
R
7 OFFSET+
6 OFFSET-
5 S/R+
OUT+
Rbridge
R
OUT-
R
R
GND
Roffset
OFFSET +
Ioffset
R set/reset
OFFSET -
HTMC 1021D PINOUT / PACKAGE
OUT+ 1
VBRIDGE 2
GND 3
OUT- 4
DIE
8 OFFSET-
7 OFFSET+
6 S/R-
5 S/R+
S/R +
Iset, -Ireset
S/R -
Not actual size
Solid State Electronics Center • 12001 State Highway 55, Plymouth, MN 55441 • (800) 323-8295 • http://www.ssec.honeywell.com
HTMC1001/2D
SPECIFICATIONS
Characteristic
Bridge Supply
Bridge Resistance*
Operating Temperature
Storage Temperature
Field Range*
Linearity Error*
Hysteresis Error*
Repeatability Error*
Bridge Offset*
Sensitivity*
Resolution*
Bandwidth*
OFFSET Strap*
Conditions
Vbridge referenced to GND
Bridge current = 5mA
Ambient
Ambient, unbiased
Full scale (FS) — total applied field
Best fit straight line
(at 25° C)
±1 gauss
±2 gauss
±6 gauss
HTMC1001D
Typical
5
850
-55 to 225° C
250° C
±2
0.1
1
NA
0.05
0.05
±20
3.2
27
5
2.5
3900
51
1.5
3.2
3
-3000
-600
±300
±10
2500
HTMC1021D
Typical
5
1100
-55 to 225° C
250° C
±6
0.05
0.4
1.6
0.08
0.08
±2.5
1.0
85
5
50
3900
4.6
7.7
0.5
20
-3000
-600
±500
±10
2500
Unit
Volts
Ω
°C
°C
gauss
%FS
%FS
%FS
mV
mV/V/gauss
µgauss
MHz
Ω
ppm/° C
mA/gauss
Ω
Amp
gauss
ppm/° C
ppm/° C
ppm/° C
3 sweeps across ±3 gauss @ 25° C
3 sweeps across ±3 gauss @ 25° C
Offset = (OUT+) - (OUT-), Field=0 gauss
after Set pulse, Vbridge=5V
At Vbridge=5V
Bandwidth=10Hz, Vbridge=5V
Magnetic signal (lower limit = DC)
Measured from
OFFSET
+ to
OFFSET
-
OFFSET Strap
Ω
Tempco T
A
= -55 to +225° C
OFFSET Field*
Set/Reset Strap*
Set/Reset Current*
Disturbing Field*
Sensitivity Tempco
Bridge Offset Tempco
Resistance Tempco
Field applied in sensitive direction
Measured from S/R+ to S/R-
Current at 0.1% duty cycle, or less
Sensitivity starts to degrade. Use S/R pulse
to restore sensitivity.
T
A
= -55 to +225° C
T
A
= -55 to +225° C
Ibridge=5mA
Vbridge=5V
Ibridge=5mA
no Set/Reset
with Set/Reset
Vbridge = 5V, -55 to +225° C
*Temperature is 25°C onless otherwise specified.
Honeywell reserves the right to make changes to any products or technology herein to improve reliability, function or design. Honeywell does not assume any liability
arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others.
900244 Rev.A
10/99
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