FXPS7115D4S datasheet(11/72 Pages) NXP

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NXP Semiconductors

FXPS7115D4S

Digital absolute pressure sensor, 40 kPa to 115 kPa

aaa-029892

frequency (Hz)

104

103

102

400

600

200

800

1000

delay

(µs)

minimum

typical

maximum

Figure 11. 1000 Hz, 4-pole output signal delay

7.3.3.4 Absolute pressure output data scaling equation

Equation 4 is used to convert absolute pressure readings with the variables as specified in Table 7. Note, the

specified values apply only if the P_CAL_ZERO value is set to 0000h.

(4)

Where:

PABSkPa = The absolute pressure output in kPa.

PABSLSB = The absolute pressure output in LSB.

PABSOFFLSB = The internal trimmed absolute pressure output value at 0 kPa in LSB.

PABSSENSE = The trimmed absolute pressure sensitivity in LSB/kPa.

Range

Data reading

PABSOffLSB (LSB)

PABSSENSE (LSB/kPa)

12-bit sensor data request[1]

–1567.8

46.67

16-bit register/data read 62h and 63h

25536

93.34

Interrupt threshold registers 46h to 49h

25536

93.34

40 kPa - 115 kPa

16-bit sensor data request[1]

-25084.8

746.72

Table 7. Scaling parameters

[1]

SPI mode only. See Section 7.7.8.1 for more details.

7.3.4 Temperature sensor

7.3.4.1 Temperature sensor signal chain

The device includes a temperature sensor for signal compensation and user readability. Figure 12 shows a

simplified block diagram. Temperature sensor parameters are specified in Table 104 and Table 105.

FXPS7115D4S

All information provided in this document is subject to legal disclaimers.

Objective data sheet

Rev. 1.2 — 28 June 2023

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