FMA SERIES MicroForce Sensors
The FMA Series are piezoresistive-based force sensors offering a digital output for reading force over the specified full scale force span and temperature range. They are fully calibrated and temperature compensated for sensor offset, sensitivity, temperature effects, and nonlinearity using an on-board Application Specific Integrated Circuit (ASIC). Direct mechanical coupling allows for easy interface with the sensor, coupling with tubing, membrane or a plunger, providing repeatable performance and a reliable mechanical interface to the application. These products offer a more stable output which is directly proportional to the force applied to the mechanically-coupled sphere. The FMA Series is available with pocket tape and reel packaging. They are designed to meet the customers need for a compensated, amplified force sensor which provides digital outputs, a variety of force sensing ranges, a small, cost-effective format, and enhanced durability and accuracy. The flexible design provides multiple standard configurations over a wide operating temperature range.
Product Attributes
- Brand: Honeywell
- Origin: Manufactured according to ISO 9001 standards
- Certifications: REACH and RoHS compliant
Technical Specifications
| Characteristic | Minimum | Typical | Maximum | Unit | Notes |
|---|---|---|---|---|---|
| Supply voltage (Vsupply) | 3.0 | 3.3 / 5.0 | 3.6 / 5.25 | Vdc | 3.3 Vdc or 5.0 Vdc based on catalog listing. Not reverse polarity protected. |
| Supply current (3.3 Vdc) | 2.8 | 3.9 | mA | ||
| Supply current (5.0 Vdc) | 3.9 | 4.6 | mA | ||
| Power input | 20 | mW | |||
| Operating temperature range | -40 [-40] | 85 [185] | C [F] | Range over which sensor produces output proportional to force. | |
| Compensated temperature range | 5 [41] | 50 [122] | C [F] | Range over which sensor produces output proportional to force within specified limits. | |
| Storage temperature range | -40 [-40] | 85 [185] | C [F] | ||
| Startup time (power up to data ready) | 3 | ms | |||
| Response time | 0.42 | 0.84 | ms | ||
| SPI/I2C voltage level (low) | 80 | Vsupply | |||
| SPI/I2C voltage level (high) | 20 | Vsupply | |||
| Pull up on SDA/MISO, SCL/SCLK, SS | 1 | kOhm | |||
| Accuracy | 2 | %FSS | Typical. Includes errors due to force non-linearity, hysteresis, and non-repeatability. | ||
| Total Error Band (BFSL) | 8 | %FSS | Combined error from calibration, accuracy, and temperature effects. | ||
| Output resolution | 12 | bits | |||
| Long term stability | 1.6 | %FSS | |||
| Supply voltage (Absolute Maximum) | -0.3 | 6.0 | Vdc | ||
| Voltage on any pin (Absolute Maximum) | -0.3 | Vsupply + 0.3 | V | ||
| Digital clock frequency (SPI) | 50 | kHz | |||
| Digital clock frequency (I2C) | 100 | 800 | kHz | ||
| ESD susceptibility (human body model) | 8 | kV | |||
| Overforce limit | 3X force range | Repeated exposure may cause permanent damage. | |||
| Humidity | 0% | 95% RH, non-condensing | |||
| Vibration | 20.71 Gms | MIL-STD-202, Method 214, Condition 1F | |||
| Shock | 50 G | MIL-STD-202, Method 213, Condition A | |||
| Life | 1 million | full scale force cycles minimum | May vary depending on application. |
Potential Applications
MEDICAL: Infusion pumps, Ambulatory pumps, Enteral feeding pumps, Kidney dialysis machines.
INDUSTRIAL: Load and compression sensing, Touch panels, Switch replacement, Robotic equipment, Weight measurement, Force/grip measuring equipment.
Available Configurations (Examples)
| Catalog Listing | Force Range | Output | Description |
|---|---|---|---|
| FMAMSDXX005WCSC3 | 5 N | SPI | FMA Series Force Sensor, compensated/amplified, mechanically coupled, sphere contact element, sensor short and open diagnostics, 5 N force range, compression force type, SPI digital output, 20% to 80% transfer function, 3.3 V 10% supply voltage |
| FMAMSDXX005WC2C3 | 5 N | I2C, address 0x28 | FMA Series Force Sensor, compensated/amplified, mechanically coupled, sphere contact element, sensor short and open diagnostics, 5 N force range, compression force type, I2C digital output, address 0x28, 20% to 80% transfer function, 3.3 V 10% supply voltage |
| FMAMSDXX015WCSC3 | 15 N | SPI | FMA Series Force Sensor, compensated/amplified, mechanically coupled, sphere contact element, sensor short and open diagnostics, 15 N force range, compression force type, SPI digital output, 20% to 80% transfer function, 3.3V 10% supply voltage |
| FMAMSDXX015WC2C3 | 15 N | I2C, address 0x28 | FMA Series Force Sensor, compensated/amplified, mechanically coupled, sphere contact element, sensor short and open diagnostics, 15 N force range, compression force type, I2C digital output, address 0x28, 20% to80% transfer function, 3.3 V 10% supply voltage |
| FMAMSDXX025WCSC3 | 25 N | SPI | FMA Series Force Sensor, compensated/amplified, mechanically coupled, sphere contact element, sensor short and open diagnostics, 25 N forcerange, compression force type, SPI digital output, 20% to 80% transfer function, 3.3 V 10% supply voltage |
| FMAMSDXX025WC2C3 | 25 N | I2C, address 0x28 | FMA Series Force Sensor, compensated/amplified, mechanically coupled, sphere contact element, sensor short and open diagnostics, 25 N force range, compression force type, I2C digital output, address 0x28, 20% to 80% transfer function, 3.3 V 10% supply voltage |
2411192335_Honeywell-FMAMSDXX025WC2C3_C3219888.pdf
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