HMC1002-RC Honeywell Microelectronics & Precision Sensors, HMC1002-RC Datasheet - Page 7
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HMC1002-RC
Manufacturer Part Number
HMC1002-RC
Description
SENSOR LINEAR MAGN 2AXIS 20-SOIC
Manufacturer
Honeywell Microelectronics & Precision Sensors
Type
Linearr
Datasheet
1.HMC1021S.pdf
(15 pages)
Specifications of HMC1002-RC
Output Type
Differential Voltage
Sensing Range
±2g
Voltage - Supply
5 V ~ 12 V
Features
Compass - Two Axis
Operating Temperature
-55°C ~ 150°C
Package / Case
20-SOIC (0.300", 7.50mm Width)
Terminal Type
PCB Thru Hole
Sensitivity Range
3mV/V/G
Sensor Terminals
SMD Gull Wing
Leaded Process Compatible
Yes
Magnetic Field Max
2G
Axis Configuration
Two
Magnetic Field Min
-2G
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Supply
-
Current - Output (max)
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
342-1070
HMC1002-RC
HMC1002-RC
HMC1001/1002/1021/1022
For simpler circuits with less critical requirements for noise and accuracy, a single polarity pulse circuit may be employed
periodically (all sets or all resets). With these uni-polar pulses, several uni-polar pulses become close in performance to a
single bipolar set/reset pulse circuit.
NOISE CHARACTERISTICS
The noise density curve for a typical AMR sensor is shown in the figure below. The 1/f slope has a nominal corner
frequency near 10Hz and flattens out to a 3.8 nV/sqrtHz slope. This is approximately equivalent to the Johnson noise (or
white noise) for an 850 ohm resistor, the typical bridge resistance. To relate the noise density voltage to the magnetic
fields, use the following expressions:
For Vbridge = 5V and Sensitivity = 3.2mV/V/gauss, the bridge output (Voutput) is 16mV/gauss
The noise density at 1Hz is about 30nV/sqrtHz or 1.8 micro-gauss/sqrtHz
1/f noise (0.1 to 10Hz) = 30 * sqrt[(ln10/0.1)] nV = 64nV (rms) = 4 micro-gauss (rms) = 27 micro-gauss (pk-pk)
White noise (BW = 1kHz) = 3.8 * sqrt[BW] nV = 120nV (rms) = 50 micro-gauss (pk-pk)
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