General Description
The Honeywell HMC2003 is a high sensitivity, three axis magnetic sensor hybrid assembly used to measure low magnetic field strengths. Honeywell’s most sensitive magneto-resistive sensors (HMC1001 and HMC1002) are utilized to provide the reliability and precision of this magnetometer design. The HMC2003 interface is all analog with critical nodes brought out to the pin interfaces for maximum user flexibility. The internal excitation current source and selected gain and offset resistors, reduces temperature errors plus gain and offset drift. Three precision low-noise instrumentation amplifiers with 1kHz low pass filters provide accurate measurements while rejecting unwanted noise.

FEATUREs
• 20-pin Wide DIP Footprint (1” by 0.75”)
• Precision 3-axis Capability
• Factory Calibrated Analog Outputs
• 40 micro-gauss to ±2 gauss Dynamic Range
• Analog Output at 1 Volt/gauss (2.5V @ 0 gauss)
• Onboard +2.5 Volt Reference
• +6 to +15 Volt DC Single Supply Operation
• Very Low Magnetic Material Content
• -40° to 85°C Operating Temperature Range