HTL Encoders Explained: High-Threshold Logic and Push-Pull Technology
What Is HTL?
HTL, or High-Threshold Logic, is a signal output standard commonly used in industrial automation. HTL outputs are designed to provide robust signal transmission over long cable runs and in electrically noisy environments. This makes them ideal for applications where reliability and interference immunity are critical.
HTL vs TTL: What’s the Difference?
HTL signals operate at higher voltage levels (typically 10–30 V), while TTL (Transistor-Transistor Logic) signals use lower voltage levels (usually 5 V). The higher threshold of HTL ensures better noise immunity and compatibility with industrial controllers.
Push-Pull Output Explained
HTL encoders often use a push-pull output stage. This means the output actively drives both high and low states, reducing susceptibility to interference and allowing for faster signal transitions. Push-pull outputs can also drive longer cables without requiring additional line drivers.
Why Choose HTL Encoders?
- Excellent noise immunity for harsh industrial environments
- Long cable capability without signal degradation
- Compatible with most PLCs and motion controllers
Hengstler HTL Encoders in All Incremental Types
Hengstler offers HTL output options across its entire range of incremental encoders. Whether you need compact designs for robotics or heavy-duty models for industrial machinery, Hengstler provides:
- Incremental encoders with HTL push-pull outputs
- Wide voltage range for flexible integration
- High-resolution options for precision feedback
Applications of HTL Encoders
- Factory automation
- Robotics and motion control
- Packaging and printing machines
- Elevator and lift systems