• 12-bit absolute position via SPI (4096 positions)
• incremental resolutions up to 1024 PPR
• index pulse
• compact modular package with locking hub for ease of installation
• 7 different mounting hole options
• -40~125°C operating temperature
ELECTRICAL
parameter
power supply
current consumption
output high level
output low level
output current
rise/fall time
CMOS sink/source per channel
30
conditions/description
VDD
with unloaded output
VDD-0.8
0.4
2
min
4.5
typ
5
8
max
5.5
10
units
V
mA
V
V
mA
ns
INCREMENTAL CHARACTERISTICS
parameter
channels
waveform
phase difference
quadrature resolutions
1
index
accuracy
quadrature duty cycle
Notes:
conditions/description
quadrature A, B, and Z index
CMOS voltage square wave
A leads B for CCW rotation (viewed from front)
96, 192, 200, 250, 384, 400, 500, 512, 768, 800,
1000, 1024
one pulse per 360 degree rotation
min
typ
max
units
90
degrees
PPR
0.2
50
degrees
%
1. Resolution selected via AMT Viewpoint™ PC Software. Default resolution set to 1024 PPR. All resolutions are listed as pre-quadrature, meaning the final number of
counts is PPR x 4.
ABSOLUTE POSITION CHARACTERISTICS
parameter
resolution
positions
accuracy
encoder can be zero-set via SPI or AMT Viewpoint™ PC
Software
0.2
degrees
conditions/description
min
typ
max
12
units
bits
cuidevices.com
Additional Resources:
Product Page
|
3D Model
CUI Devices
│
SERIES:
AMT20
│
DESCRIPTION:
MODULAR ABSOLUTE ENCODER
date
11/21/2019│
page
2 of 10
MECHANICAL
parameter
motor shaft length
weight
axial play
rotational speed
conditions/description
min
9
15.7
±0.3
8000
typ
max
units
mm
g
mm
RPM
ENVIRONMENTAL
parameter
operating temperature
humidity
vibration
shock
RoHS
non-condensing
10~500 Hz, 5 minute sweep, 2 hours on each XYZ
3 pulses, 6 ms, 3 on each XYZ
yes
conditions/description
min
-40
typ
max
125
85
5
200
units
°C
%
G
G
SERIAL INTERFACE
parameter
protocol
controller
data rate
1
Note:
1. See Microchip documentation for additional details.
conditions/description
Serial Peripheral Interface (SPI)
SPI driven by onboard Microchip PIC16F690
1
min
typ
max
units
1
MHz
WAVEFORMS
Figure 1
Quadrature signals with index showing
counter-clockwise rotation
X
A
T
I
B
P
S
S
S
S
The following parameters are defined by the resolution selected for each
encoder. The encoders resolution is listed as Pulses Per Revolution (PPR), which
is the number of periods (or high pulses) over the encoders revolution.
Parameter
PPR
CPR
T
P
S
I
Note:
Description
resolution
counts
period
pulse width
A/B state width
index width
Expression
Units
Pulses Per Revolution
Notes
This is the user selected value and the
format all resolutions are listed in
This is the number of quadrature counts
the encoder has
PPR x 4
360/R
T/2
T/4
T/4
Counts Per Revolution
mechanical degrees
mechanical degrees
mechanical degrees
mechanical degrees
This is the width of a quadrature state
The width of a once per turn index is the
state width for A & B lines
For more information regarding PPR, CPR, or LPR (Lines Per Revolution) view https://www.cuidevices.com/blog/what-is-encoder-ppr-cpr-and-lpr
cuidevices.com
Additional Resources:
Product Page
|
3D Model
CUI Devices
│
SERIES:
AMT20
│
DESCRIPTION:
MODULAR ABSOLUTE ENCODER
date
11/21/2019│
page
3 of 10
PART NUMBER KEY
The AMT203 is designed for 12 bit binary (4,096) operation. For customers who may use the optional quadrature output, one of the resolutions below may be
selected as the default quadrature output.
AMT203
X
-
XXXX
-
XXXX
-
X
Base Number
Quadrature
Resolution (PPR):
0096
0500
0192
0512
0200
0768
0250
0800
0384
1000
0400
1024
Connector Options:
"blank" = standard connector
S = locking connector
Sleeve Bore Diameter:
2000 = 2 mm
3000 = 3 mm
3175 = 3.175 mm (1/8”)
4000 = 4 mm
4760 = 4.76 mm (3/16”)
5000 = 5 mm
6000 = 6 mm
6350 = 6.35 mm (1/4”)
8000 = 8 mm
Mounting Base:
S = Standard
W= Wide
Note:
1. Conformal coating available upon request
AMT20-V KITS
In order to provide maximum flexibility for our customers, the AMT20 series is provided in kit form standard. This allows the user to implement the encoder
into a range of applications using one sku#, reducing engineering and inventory costs.
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