S5 Optical Shaft Encoder

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S5 Optical Shaft Encoder

The S5 series optical shaft encoder is a non-contacting rotary to digital converter. Useful for position feedback or manual interface, the encoder converts real-time shaft angle, speed, and direction into TTL-compatible quadrature outputs with or without index. The encoder utilizes a mylar disk, metal shaft and bushing, LED light source, and monolithic electronics. It operates from a single +5VDC supply.      

Three shaft torque versions are available. The standard torque version has a sleeve bushing lubricated with a viscous motion control gel to provide torque and feel that is ideal for front panel human interface applications.

The no torque added option has a sleeve bushing and a low viscosity lubricant (that does not intentionally add torque) for low RPM applications where a small amount of torque is acceptable.

The ball bearing version uses miniature precision ball bearings that are suitable for high speed and ultra low torque applications.A secure connection to the S5 series encoder is made through a 5-pin (single-ended version) or 10-pin (differential version) latching connector (sold separately). The mating connectors are available from US Digital® with several cable options and lengths.

For differential version: the internal differential line driver (26C31) can source and sink 20mA at TTL levels. The recommended receiver is industry standard 26C32. Maximum noise immunity is achieved when the differential receiver is terminated with a 150 Ω resistor in series with a .0047 μF capacitor placed across each differential pair. The capacitor simply conserves power; otherwise power consumption would increase by approximately 20mA per pair, or 60mA for 3 pairs. Small size Low cost Optional differential / line-driver output Positive latching connector 2-channel quadrature, TTL squarewave outputs 3rd channel index option Ball bearing option tracks to 10,000 RPM -25 to +100C operating temperature Single +5VDC supply

Part Number s5_optical_shaft_encode
Company US Digital
Operating Temperature (CPR < 2000), C -40 to 100
Operating Temperature (CPR ≥ 2000), C -25 to 100
Operating Temperature (CPR < 3600), C No
Operating Temperature (CPR ≥ 3600), C No
Supply Voltage, V 4.5 to 5.5
Vibration (5Hz to 2kHz), G 20
Weight Oz Single-ended Sleeve Bushing 1.79, Differential Sleeve Bushing 1.28, Single-ended Ball Bearing 1.15, Differential Ball Bearing 1.42
Max. Acceleration, rad/sec2 250000