Flexible thin-film pressure sensors-DF9-40

Mechanical data

Parameter	Specification	Tolerance
Total Length	45.7 mm	±0.2 mmr
Total Width	10 mm	±0.2 mm
Active Sensing Zone	Ø7.5 mm circle	±0.2 mm
Pin Pitch	2.54 mm	-

Product Features

• Ultra-thin and flexible design (<0.3 mm thickness)

• Low power consumption with long-term stability

• Fast response time for dynamic pressure detection

• High sensitivity over a wide pressure range

• Easy integration into various systems

• Customizable sizes, shapes, and specifications

Key Specifications

Application Circuit

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  Figure 1: Voltage Divider Measurement Method

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  Figure 2: Voltage Divider Measurement with Voltage Follower for Output Voltage Stability

• Calculation Formula

  

• Measurement Principle

  The pressure sensor is connected in series with the load resistor RLR_LRL, with one end connected to V+V_+V+ and the other to GND, forming a basic voltage divider circuit. The output voltage (VoutV_{out}Vout) is taken from the voltage divider, and the sensor's resistance variation corresponding to pressure changes is converted into a voltage signal.

  This circuit operates on the principle of voltage division, where the sensor's resistance change directly causes a change in the output voltage.

• Application Notes

  Choose an appropriate load resistor RLR_LRL based on the specific application requirements. In most cases, a value of 4.7kΩ is recommended.

  The output voltage VoutV_{out}Vout can be connected to the ADC input of a microcontroller (MCU) for pressure detection.

  Alternatively, VoutV_{out}Vout can be connected to the external interrupt I/O pin of the MCU, enabling pressure-triggered functions.

Typical Applications

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  Consumer Electronics

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  Smart Home

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  Automotive

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  Medical Devices

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