LPR4150AL View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

LPR4150AL

MEMS motion sensor: dual-axis pitch and roll ±1500 dps analog gyroscope

STMicroelectronics 

Application hints

5

Application hints

LPR4150AL

Figure 3. LPR4150AL electrical connections and external components values

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Power supply decoupling capacitors (100 nF ceramic or polyester + 10 µF aluminum) should

be placed as near as possible to the device (common design practice).

The LPR4150AL allows band limiting of the output rate response through the use of an

external low-pass filter (recommended) in addition to the embedded low-pass filter

(ft = 140 Hz).

4xOUTX and 4xOUTY are, respectively, OUTX and OUTY amplified output lines, internally

buffered to ensure low output impedance.

If external low-pass filtering is not applied, it is mandatory to short-circuit pin 1 to pin 5 and

pin 16 to pin 20, respectively, when amplified outputs are used.

When only a non-amplified output is used (OUTX/OUTZ), it is recommended to set pin 5

and 16 to a fixed reference voltage (Vref).

The LPR4150AL IC includes a PLL (phase-locked loop) circuit to synchronize driving and

sensing interfaces. Capacitors and resistors must be added at the FILTVDD and VCONT

pins (as shown in Figure 3) to implement a low-pass filter.

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Doc ID 16576 Rev 1

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