Datasheet · 2026

Same Sky AMT10 Series Modular Incremental Encoder — Datasheet

Capacitive incremental encoder, the alternative to a magnetic angle sensor on a mounted gun.

Author: Same Sky (formerly CUI Devices)
Year: 2026
Type: Datasheet
Credit: Same Sky (sameskydevices.com)

encoder
capacitive
positional gun

CUI Devices is now Same Sky! Additional Resources: Product Page Learn More | date 3D Model 06/23/2026 page 1 of 8 SERIES: AMT10 | DESCRIPTION: MODULAR INCREMENTAL ENCODER FEATURES • proprietary capacitive ASIC technology • low power consumption • CMOS outputs • 16 DIP switch selectable resolutions • index pulse • modular package design • straight (radial) and right-angle (axial) versions • 9 mounting hole options for radial version • 8 mounting hole options for axial version • -40~100°C operating temperature ELECTRICAL parameter conditions/description min power supply VDD 3.6 current consumption with unloaded output typ max 5 5.5 6 V output low level output current CMOS sink/source per channel 0.4 V 2 mA 30 rise/fall time V mA VDD-0.8 output high level units ns INCREMENTAL CHARACTERISTICS parameter conditions/description min channels quadrature A, B, and X index waveform CMOS voltage square wave phase difference A leads B for CCW rotation (viewed from front) quadrature resolutions1 48, 96, 100, 125, 192, 200, 250, 256, 384, 400, 500, 512, 800, 1000, 1024, 2048 index2 one pulse per 360 degree rotation max 90 degrees 0.25 quadrature duty cycle (at each resolution) 256, 512, 1024, 2048 48, 96, 100, 125, 192, 200, 250, 384, 400, 500 800, 1000 49 47 43 50 50 50 degrees 51 53 56 1. Resolution selected via adjustable DIP switch, pre-set to 2048 PPR. All resolutions are listed as pre-quadrature, meaning the final number of counts is PPR x 4. 2. Some stepper motors may leak a magnetic field causing the AMT index pulse to not function properly (non-magnetic version available with 8 pulses per revolution). sameskydevices.com units PPR accuracy Notes: typ % % % Additional Resources: Product Page | 3D Model SAME SKY | SERIES: AMT10 | DESCRIPTION: MODULAR INCREMENTAL ENCODER date 06/23/2026 | page 2 of 8 MECHANICAL parameter conditions/description min motor shaft length typ max 9 motor shaft tolerance AMT102 AMT103 weight mm NOM +0/-0.015 mm 20.5 14.0 g g axial play rotational speed (at each resolution) units ±0.3 mm 192, 384, 400, 500, 800, 1000, 1024, 2048 7500 RPM 48, 96, 100, 125, 200, 250, 256, 512 15000 RPM max units 100 °C ENVIRONMENTAL parameter conditions/description min operating temperature1 typ -40 humidity non-condensing 95 % vibration 20~500 Hz, 1 hour on each XYZ 10 G shock 11 ms, ±XYZ direction 50 G RoHS yes Note: 1. Encoders with operating temperature of -40~125°C are available as a custom order WAVEFORMS Figure 1 Quadrature signals with index showing counter-clockwise rotation I X A T 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 Description PPR resolution CPR counts Units Notes Pulses Per Revolution This is the user selected value and the format all resolutions are listed in PPR x 4 Counts Per Revolution This is the number of quadrature counts the encoder has T period 360/R mechanical degrees P pulse width T/2 mechanical degrees S A/B state width T/4 mechanical degrees This is the width of a quadrature state mechanical degrees The width of a once per turn index is the state width for A & B lines I Note: Expression index width T/4 For more information regarding PPR, CPR, or LPR (Lines Per Revolution) view https://www.sameskydevices.com/blog/what-is-encoder-ppr-cpr-and-lpr sameskydevices.com Additional Resources: Product Page | 3D Model SAME SKY | SERIES: AMT10 | DESCRIPTION: MODULAR INCREMENTAL ENCODER date 06/23/2026 | page 3 of 8 PART NUMBER KEY For customers that prefer a specific AMT10 configuration, please reference the custom configuration key below. AMT10X - X XXXX - X XXXX - X Mounting Base: S = Standard W = Wide (AMT102 only) Base Number Orientation: 2 = Radial 3 = Axial Resolution Option: “blank” = fixed resolution D = adjustable resolution *See Mechanical Drawings Resolution1 (ppr): 0048 0384 0096 0400 0100 0500 0125 0512 0192 0800 0200 1000 0250 1024 0256 2048 Note: Index Pulse: I = single index pulse per revolution N = 8 index pulses per revolution 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 1. Fixed resolutions are permanently set at this value; adjustable resolutions are preset via DIP switch to this value upon shipment. AMT10-V KITS In order to provide maximum flexibility for our customers, the AMT10 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. SLEEVES ORDERING GUIDE AMT10X-V 8mm 1/4 inch (6.35mm) 6mm 5mm 3/16 inch (4.76mm) 4mm 1/8 inch (3.175mm) 3mm 2mm Blue Snow Red Green Yellow Gray Purple Orange Light Sky Blue Orientation: 2 = Radial 3 = Axial *See Mechanical Drawings sameskydevices.com 102 BASE 102 WIDE BASE 102 TOP COVER 103 BASE 103 TOP COVER TOOL A SHAFT ADAPTER TOOL B Additional Resources: Product Page | 3D Model SAME SKY | SERIES: AMT10 | DESCRIPTION: MODULAR INCREMENTAL ENCODER date 06/23/2026 | page 4 of 8 RESOLUTION SETTINGS 1 = On, 0 = Off Resolution (PPR) Maximum RPM 1 2 3 4 2048 7500 0 0 0 0 1024 7500 0 0 1 0 1000 7500 1 0 0 0 800 7500 0 1 0 0 512 15000 0 0 0 1 500 7500 1 0 1 0 400 7500 0 1 1 0 384 7500 1 1 0 0 256 15000 0 0 1 1 1 250 15000 1 0 0 200 15000 0 1 0 1 192 7500 1 1 1 0 125 15000 1 0 1 1 100 15000 0 1 1 1 96 15000 1 1 0 1 48 15000 1 1 1 1 DIP switch: Example setting: 500 PPR (on)1 1 2 3 4 (off) 0 ENCODER INTERFACE PINOUT CONNECTOR Function # AMT102 AMT103 B B CHANNEL B CHANNEL 5V +5 V +5 V A A CHANNEL A CHANNEL X INDEX CHANNEL INDEX CHANNEL G GND GND T UNUSED N/A AMT102 AMT103 Mating Connector: AMP 3-640440-5 (tin) AMP 3-641237-5 (gold) Mating Connector: Molex 50-57-9405 Housing Molex 16-02-0086 Terminals sameskydevices.com Additional Resources: Product Page | 3D Model SAME SKY | SERIES: AMT10 | DESCRIPTION: MODULAR INCREMENTAL ENCODER date 06/23/2026 | page 5 of 8 MECHANICAL DRAWING AMT102 units: mm[inch] tolerance: ±0.1mm R15.50 0.610 9.00 0.354 15.30 0.602 15.34 0.604 43.38 1.708 28.77 1.133 AMT102 WIDE BASE units: mm[inch] tolerance: ±0.1mm 52.50 2.067 R15.50 0.610 9.00 0.354 15.30 0.602 15.34 0.604 43.38 1.708 28.77 1.133 AMT103 units: mm[inch] tolerance: ±0.1mm 9.00 0.354 R15.50 0.610 15.30 0.602 15.34 0.604 34.21 1.347 6.83 0.269 11.50 0.453 12.39 0.488 28.60 1.126 sameskydevices.com Additional Resources: Product Page | 3D Model SAME SKY | SERIES: AMT10 | DESCRIPTION: MODULAR INCREMENTAL ENCODER date 06/23/2026 | page 6 of 8 MECHANICAL DRAWING (CONTINUED) MOUNTING HOLE PATTERNS AMT102 A (3 PLCS) units: mm[inch] tolerance: ±0.1mm 22.00 0.866 12.60 0.496 1.09 1.09 20.90 0.823 19.05 0.750 R1.05 0.041 1.70 0.067 (2 PLCS) 16.00 0.630 2.95 0.116 (2 PLCS) .28 0.022 15.75 0.620 25.40 1.000 DETAIL A SCALE 4 : 1 2.10 0.083 (2 PLCS) 3.96 0.156 (4 PLCS) 1.09 1.09 20.96 0.825 AMT102 WIDE BASE units: mm[inch] tolerance: ±0.1mm 3.000 0.118 (2 PLCS) 2.870 0.113 (2 PLCS) 46.025 1.812 32.430 1.277 AMT103 units: mm[inch] tolerance: ±0.1mm A (3 PLCS) 19.05 0.750 R1.05 0.041 2.00 0.079 (4 PLCS) 1.70 0.067 (2 PLCS) 20.90 0.823 .28 0.011 DETAIL A SCALE 4 : 1 22.00 0.866 2.95 0.116 (2 PLCS) 16.00 0.630 25.40 1.000 12.60 0.496 sameskydevices.com Additional Resources: Product Page | SAME SKY | SERIES: AMT10 | DESCRIPTION: MODULAR INCREMENTAL ENCODER ASSEMBLY PROCEDURE sameskydevices.com 3D Model date 06/23/2026 | page 7 of 8 Additional Resources: Product Page | 3D Model SAME SKY | SERIES: AMT10 | DESCRIPTION: MODULAR INCREMENTAL ENCODER date 06/23/2026 | page 8 of 8 REVISION HISTORY rev. description date 1.0 initial release 05/04/2011 1.01 updated electrical specifications 07/11/2011 1.02 updated electrical specifications 09/16/2011 1.03 updated resolution table and electrical specifications 10/18/2012 1.04 updated part number key 11/20/2012 1.05 updated spec, updated DIP switch table 07/26/2013 1.06 updated spec 01/03/2014 1.07 updated part number key 04/14/2014 1.08 updated spec 07/18/2014 1.09 mounting holes increased to Ø3.96 mm through all, Ø5.79 x 1.02 mm counter-sink 09/04/2015 1.10 added high operating temperature range option 12/18/2017 1.11 updated spec 10/10/2018 1.12 brand update 11/21/2019 1.13 added motor shaft tolerance details 08/04/2021 1.14 logo, datasheet style update 08/05/2022 1.15 CUI Devices rebranded to Same Sky 09/12/2024 1.16 updated features 06/23/2026 The revision history provided is for informational purposes only and is believed to be accurate. Same Sky offers a one (1) year limited warranty. Complete warranty information is listed on our website. Same Sky reserves the right to make changes to the product at any time without notice. Information provided by Same Sky is believed to be accurate and reliable. However, no responsibility is assumed by Same Sky for its use, nor for any infringements of patents or other rights of third parties which may result from its use. Same Sky products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. sameskydevices.com