HMC1023 Honeywell Microelectronics & Precision Sensors, HMC1023 Datasheet
HMC1023
Specifications of HMC1023
Available stocks
Related parts for HMC1023
HMC1023 Summary of contents
Page 1
... Sensitivity Minimum Detectable Field to 85 gauss Patented On-Chip Set/Reset and Offset Straps Product Description The Honeywell HMC1023 is a high performance three- axis magneto-resistive sensor design in a single package. The advantages of the HMC1023 include orthogonal three-axis sensing, small size and a 16- contact BGA surface mount package ...
Page 2
... HMC1023 SPECIFICATIONS Characteristics Bridge Elements Supply Resistance Bridge current = 5mA, VCC to GND Operating Temperature Storage Temperature Humidity Field Range Full scale (FS) – total applied field Linearity Error Hysteresis Error Repeatability Error Bridge Offset Field = 0 gauss after Set pulse, VCC = 5V Sensitivity Noise Density ...
Page 3
... HMC1023 SPECIFICATIONS Characteristics Set/Reset Strap Resistance Current Resistance Tempco Offset Straps Resistance Measured from OFFSET+ to OFFSET- Offset Constant Field applied in sensitive direction Resistance Tempco * Tested at 25°C except stated otherwise. Pin Configuration after a SET pulse.) Package Outline Solid State Electronics Center • www.magneticsensors.com • (800) 323-8295 • Page 3 ...
Page 4
... The reflow parameters can vary significantly and excellent reflow results can still be achieved. A thin layer of paste flux mil layer of solder paste applied to the mother-board prior to placing the HMC1023 is helpful. The profile can be verified by placing a thermocouple between the HMC1023 and motherboard. ...
Page 5
... Offset Strap The offset strap is a spiral of metalization that couples in the sensor element’s sensitive axis. In the HMC1023 design, there is one strap per bridge with both ends brought out externally. Each offset strap measures nominally 50 ohms, and requires about 4.6mA for each gauss of induced field. The straps will easily handle currents to buck or boost fields through the ± ...
Page 6
... Application Notes Three Axis Compassing with Tilt Compensation For full three-axis compassing, the circuit depicted in Figure 2 shows HMC1023 used for sensing the magnetic field in three axes. A two-axis accelerometer with digital (PWM) outputs is also shown to provide pitch and roll (tilt) sensing, to correct the three-axis magnetic sensors outputs into to the tilt-compensated two-axis heading. The accelerometer can be substituted with a fluidic 2-axis tilt sensor if desired ...
Page 7
... For battery powered and other applications needing limited energy consumption, the sensor bridge and support electronics can be switched “off” between magnetic field measurements. The HMC1023 sensors are very low capacitance (Bandwidth > 5MHz) sensor bridges and can stabilize quickly, typically before the support electronics can ...