US Digital

SP-16 16 CPR Optical Shaft Encoder

Overview

The SP-16 is a rugged, reliable, low cost optical incremental encoder that converts shaft angle, speed, and direction into real-time digital information. The shaft is torque-loaded to feel like a potentiometer. Two quadrature outputs provide 64 quadrature states per revolution (16 CPR x 4). TTL compatibility is achieved by feeding the outputs through an external 74LS244. The internal electronics and LEDs draw less than 27 mA from a single +5 V supply. Placed behind a knob on a...

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Product Specifications

Shaft Speed:
(D-option, N-option) 100 RPM continuous
(B-option) 10,000 RPM continuous

Shaft Torque:
(D-option) 0.7 ± 0.3 in. oz.
(N-option) 0.3 in. oz. max.
(B-option) 0.05 in oz. max.

Shaft Loading:
1 lbs. max. (running)
10 lbs. max. (stopped)
Weight: 1.0 oz.

Hole Diameter: .380 in.
Panel Thickness: .125 in. max.
Panel Nut Max. Tightening Torque: 20 in.-lbs.

Operating Temperature: -20 C to 85 C
Storage Temperature: -40 C to 85 C
Humidity: 0 % to 100% non-condensing
Shock: 40 G for 11 mS
Vibration: 0 Hz to 60 Hz, 20 G

ParameterMin.Typ.Max.UnitsNotes
Supply Voltage 4.5 5.0 5.5 V  
Supply Current - 22 27 mA  
High Level Output Voltage 3.5 5.0 5.5 V  
Low Level Output Voltage - .15 0.4 V  
Output Current (IoutL) 0.5 2.0 - mA Vout=0.5 V
Output Current (IoutL) - 8 18 mA Short to Vcc
Symmetry 150 180 210 deg. See note 1
Quadrature 60 90 120 deg. See note 2

1. Symmetry is a measure of the relationship between (X) and (Y) in electrical degrees.
2. Quadrature is specified by (Z) and is the phase lag or lead between channels A and B in electrical degrees.

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Product Description

The SP-16 is a rugged, reliable, low cost optical incremental encoder that converts shaft angle, speed, and direction into real-time digital information. The shaft is torque-loaded to feel like a potentiometer. Two quadrature outputs provide 64 quadrature states per revolution (16 CPR x 4). TTL compatibility is achieved by feeding the outputs through an external 74LS244. The internal electronics and LEDs draw less than 27 mA from a single +5 V supply. Placed behind a knob on a front panel, the SP-16 offers these advantages over other types of man-to-machine interfaces: direct rotary to digital conversion with no digit bobble, no contact wear and no mechanical stops. Limits can be defined by the system designer. No gearing is required for multi-turn operation. Non-torque loaded and ball bearing versions of the SP-16 are available for motion control applications.

Product Notes
  • Cables and connectors are not included and must be ordered separately.
  • For ordering information please see the Compatible Cables / Connectors section above.
  • US Digital warrants its products against defects in materials and workmanship for two years. See complete warranty for details.
Related Documentation

Purchasing

Configure and Purchase

1. Torque



Product Part Number
Quantity Price
1 $54.25
10 $46.28
50 $41.60
100 $36.50
Over 100 Call for quote
Quantity
Unit Price

$54.25

Subtotal

$54.25

For your convenience, use the above part number to order via phone 800.736.0194

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