1 Features
1• Post Production Configuration and Calibration
• Programmable Decision Thresholds
• Programmable Hysteresis
• Flexible Overload Protection
• Digital Temperature Compensation
• Integrated LED driver
• Small Form Factor, Supports 4mm Sensors
(DSBGA Package)
• Low Power Consumption
• Integrated Voltage Regulator
• 3-Wire Capability
• Supports NPN and PNP Modes
• Normally Open (NO) and Normally Closed (NC)
Supported
• 16-bit Resolution Threshold Setting

2 Applications
• Industrial Proximity Detection
• Industrial Production Lines
• Industrial Automation

3 Description
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
distances.
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.