The LMP91300 is a complete analog front end (AFE) optimized for use in industrial
inductive proximity sensors. The LMP91300 directly converts the RP of the
external LC tank into a digital value.
Post-manufacturing configuration and calibration is fully supported. The temperature
dependence of the sensor is digitally compensated, using an external temperature sensor. The
LMP91300 provides programmable thresholds, programmable temperature compensation and programmable
oscillation frequency range. Due to its programmability, the LMP91300 can be used with a wide
variety of external inductors and its detection thresholds can be adjusted to the desired detection
An internal voltage regulator allows the device to operate with a supply from 6.5V to
40V. The output can be programmed to drive an external transistor in either NPN or PNP mode.
Available in 4mm × 5mm 24-terminal WQFN and 2.05mm × 2.67mm 20-terminal DSBGA packages,
the LMP91300 operates from 40°C to +125°C.
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