DESCRIPTION

· The QT114 QuickLevel™ charge-transfer sensor IC detects point levels in fluids and powders.
· Projects a sense field through dielectrics like glass, plastic, or ceramic to sense levels from the exterior.
· Capable of independently sensing two trip points with structured two-tier electrodes.
· No sensing timeouts or drift compensation, with fixed threshold levels.
· Requires only a single capacitor and optional LEDs for visual indication.
· Power consumption under 20mA, operable from Lithium cells for years.
· Features a 'slosh filter' for stable detection in moving fluids.
· Includes selectable output polarity and HeartBeat™ signal for health monitoring.

FEATURES

· Limit sensing of almost any fluid or powder.
· 2-Tier level sensor with Hi/Low limits using one probe.
· Only one external part required: a 5¢ capacitor.
· Can use internal probes or external electrodes.
· Active high or active low outputs.
· Slosh filter averages response for moving fluids.
· LED drive capable on both outputs.
· Operates on 2.5 to 5V with 20µA single supply.
· HeartBeat™ health indicator on both outputs.

APPLICATIONS

· Consumer appliances.
· Medical fluid sensing.
· Soil moisture sensing.
· Process controls.
· Vending machines.
· Automotive fluids.