
MS5540C Pressure Sensor Module (16-bit ADC, 3-Wire)
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Prices updated: 13 Oct 2026
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About this product
The MS5540C is a miniature SMD hybrid that combines a piezoresistive pressure sensor with an ADC interface IC. It outputs a 16-bit data word based on pressure and temperature dependent voltage, and communicates with a microcontroller over a 3-wire interface. It is a low-power, low-voltage sensor suited to barometric and altitude-sensing projects.
Specifications
- Device type
- Piezoresistive pressure sensor with ADC interface IC
- Output
- 16-bit data word
- Interface
- 3-wire
- Pressure measurement range
- Down to 10 mbar
- Package
- SMD hybrid
- Power behavior
- Low power, low voltage, automatic power down (ON/OFF) switching
Frequently asked questions
Is the MS5540C compatible with the MS5534C?
Yes. According to the listing, the MS5540C is fully software compatible with the MS5534C and earlier MS5540 versions, and its outer dimensions are compatible with the MS54XX series.
How do I wire it to a microcontroller?
It uses a 3-wire serial interface to talk to the microcontroller. The listing describes the bare SMD device, so check whether your module includes a breakout board and follow its pinout and the MS5540C datasheet before wiring.





