date 08/05/2022

page 1 of 10

SERIES: AMT21 | DESCRIPTION: MODULAR ABSOLUTE ENCODER

cuidevices.com

ELECTRICAL

parameter

conditions/description

min

typ

max

units

power supply

VDD

3.8

5

5.5

V

start-up time1

200

ms

current consumption

with unloaded output

16

mA

Note:

1. Encoder must be stationary during start-up.

ABSOLUTE POSITION CHARACTERISTICS

parameter

conditions/description

min

typ

max

units

resolution

12 or 14-bit

accuracy

0.2

degrees

absolute zero position

settable via AMT Viewpoint™ GUI or RS485 (single-turn

versions only)

multi-turn

multi-turn and single-turn versions available

turns counter2

signed binary number

14

bits

absolute position update rate

12-bit

14-bit

25

100

µs

µs

Notes:

2. Multi-turn encoders only.

MECHANICAL

parameter

conditions/description

min

typ

max

units

motor shaft length

9

mm

motor shaft tolerance

NOM +0/-0.015

mm

weight

15.7

g

axial play

±0.3

mm

rotational speed at each resolution

12-bit position resolution

14-bit position resolution

8,000

4,000

RPM

RPM

FEATURES

• high speed protocol for fast low latency position data

• patented capacitive ASIC technology

• low power consumption

• 12 or 14-bit absolute position with multi-turn capability

• 3.3 V half-duplex RS485 - high speed 2 Mbps or adjustable data rate

• settable zero position

• configuration and programming via AMT Viewpoint™ software

• compact modular package with locking hub for ease of installation

• radial and axial cable connections

• -40 ~ 105°C operating temperature

Additional Resources: Product Page | 3D Model