Honeywell Nanopower Series Magnetoresistive Sensor ICs are highly sensitive components designed to detect magnetic fields with minimal power consumption. These sensor ICs respond to both North and South magnetic poles, allowing flexible installation without requiring polarity identification. Operating on supply voltages as low as 1.65V, these sensors feature low average current consumption and a push-pull output that eliminates the need for a pull-up resistor. The Nanopower series includes two models: SM351LT for ultra-high magnetic sensitivity and SM353LT for very high sensitivity, both suitable for applications with large air gaps and small magnetic fields.
Honeywell Nanopower Series Magnetoresistive Sensor ICs
Features
- -40°C to +85°C operating temperature range
- 360nA typical for SM351LT and 310nA typical for SM353LT
- External pull-up resistor not required
- Omnipolar sensing: Detects either magnetic pole
- Operates at 7Gauss typical and 11Gauss maximum for SM351LT, and 14Gauss typical and 20Gauss maximum for SM353LT
Applications
- Building access control
- Drawer and lid position detection
- Exercise equipment
- Fluid flow sensing
- Handheld devices and scanners
- Hospital beds and infusion pumps
- Security systems
- Smoke detectors
- Utility meters (water, electric, and gas)