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PDF HEDS-9711 Data sheet ( Hoja de datos )
| Número de pieza | HEDS-9711 | |
| Descripción | (HEDS-9710 / HEDS-9711) 200 lpi Analog Output Small Optical Encoder Modules | |
| Fabricantes | Hewlett-Packard | |
| Logotipo |  |
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Agilent HEDS-9710, HEDS-9711
200 lpi Analog Output
Small Optical Encoder Modules
Data Sheet
Description
The HEDS-9710/HEDS-9711 series
is a high performance, low cost,
optical incremental encoder mod-
ule. When operated in conjunction
with either a codewheel or
codestrip, this module detects ro-
tary or linear position. The encoder
module consists of a lensed LED
source and a detector IC enclosed
in a small C-shaped plastic package.
Due to a highly collimated light
source and a unique photodetector
array, the module is extremely tol-
erant to mounting misalignment.
The two-channel analog outputs and
5 V supply input are accessed
through four solder-plated leads
located on 2.54 mm (0.1 inch)
centers.
The standard HEDS-9710/HEDS-
9711 is designed for use with an
appropriate optical radius
codewheel, or linear codestrip.
Please contact the factory for
more information.
Applications
The HEDS-9710/HEDS-9711
provides sophisticated motion
detection at a low cost, making
closed-loop control very cost-
effective. Typical applications
include printers, plotters, copiers,
and office automation equipment.
Note: Agilent Technologies
encoders are not recommended
for use in safety critical
applications, eg., ABS braking
systems, power steering, life
support systems, and critical care
medical equipment. Please contact
sales representative if more
clarification is needed.
Features
• Small size
• Multiple mounting options
• 200 lpi resolution
• Linear and rotary options available
• Insensitive to radial and axial play
• 15°C to 45°C operating temperature
• Two-channel analog output
• Single 5 V supply
• Wave solderable
Theory of Operation
The HEDS-9710/HEDS-9711 is a
C-shaped emitter/detector mod-
ule. Coupled with a codewheel, it
translates rotary motion into a
two-channel analog output.
Coupled with a codestrip, it trans-
lates linear motion into analog
outputs.
ESD WARNING: NORMAL PRECAUTIONS SHOULD BE TAKEN TO AVOID STATIC DISCHARGE.
1 page  
Analog Encoder Interface Circuit
VREF
I+
IA-IN
+
–
C
R1
VREF
I+
+
–
C
IB-IN
R1
VREF = 1.4 V ± 0.2 V (DC)
VA
VB
The circuit shown can be used to
convert the current output to a
voltage. Resistor value, R1, and
Capacitor, C, are specified to
attain required gain and low-pass
filtering, which are application
specific. The gain is chosen to
attain maximum output swing
and not clamp the op-amp. VREF
should be set to 1.4 V ± 0.2 V.
A 0.1 µF bypass capacitor
(decoupling capacitor) is recom-
mended to be placed within 1 cm
of the encoder for optimal power
supply noise rejection. Outputs
are high impedance (typical 1
M ohm) and susceptible to EMI.
Ordering Information
HEDS-971
Option
Lead Configurations
0 – straight leads
1 – bent leads
Resolutions
R – 200 lpi
Bracket Options
50
51
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet HEDS-9711.PDF ] | |
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| Número de pieza | Descripción | Fabricantes |
| HEDS-9710 | (HEDS-9710 / HEDS-9711) 200 lpi Analog Output Small Optical Encoder Modules | Hewlett-Packard |
| HEDS-9711 | (HEDS-9710 / HEDS-9711) 200 lpi Analog Output Small Optical Encoder Modules | Hewlett-Packard |
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