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EVAL-ADMT4000 User Guide: Evaluating the ADMT4000 Zero Power Multiturn Sensor

Evaluation platform for the ADMT4000 zero power multiturn sensor, featuring SPI communication, magnetic reset circuitry, and GUI-based data logging and configuration.

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Overview

The EVAL-ADMT4000SD1Z evaluation kit provides a comprehensive hardware platform for evaluating the ADMT4000 magnetic turn counter sensor. The system enables zero-power recording of magnetic field turns and absolute position reporting via SPI. The evaluation board includes a built-in coil for magnetic reset, supported by an LT3461 step-up DC/DC converter. Users can interface the board with a PC using the System Demonstration Platform (SDP) and provided GUI for configuration, real-time data streaming in TDMS format, and system-level calibration. The hardware features a break-away PCB design, allowing the sensor section to be separated for use in space-constrained environments with external microcontrollers through 2.54 mm headers.

Use Cases

  • Industrial multiturn rotation counting
  • Absolute position sensing in low power applications
  • Sensor calibration and diagnostic testing
  • Standalone sensor prototyping with external microcontrollers
  • Magnetic field turn measurement

Topics

ADMT4000
multiturn sensor
zero power sensor
magnetic sensor
LT3461
EVAL-ADMT4000SD1Z
magnetic reset
SPI interface
absolute position
SDP-CS1Z

Referenced Parts

ADP196ACPZN-R7

Analog Devices

U3 5 V, 3 A logic-controlled high-side power switch Analog Devices ADP196ACPZN-R7

C0805C105J8NACAUTO

Kemet

C1, C2 1 μF ceramic capacitors, 10 V, 5%, X8L, 0805, AEC-Q200 Kemet C0805C105J8NACAUTO

C0805X475J4RACAUTO

Kemet

C9 4.7 μF ceramic capacitor, 16 V, 5%, X7R, 0805, AEC-Q200 Kemet C0805X475J4RACAUTO

GCM1885G1H112FA16D

Murata

C12 1100 pF ceramic capacitor, 50 V, 1%, X8G, 0603, AEC-Q200 Murata GCM1885G1H112FA16D

ERA-6AEB103V

Panasonic

R8 10 kΩ SMD resistor, 0.1%, 1/8 W, 0805, AEC-Q200 Panasonic ERA-6AEB103V

ERJ-2BSFR10X

Panasonic

R32 0.1 Ω SMD resistor, 1%, 1/6 W, 0402, AEC-Q200 Panasonic ERJ-2BSFR10X

ERJ-2GE0R00X

Panasonic

0 Ω SMD resistors, jumper, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2GE0R00X

ERJ-2GEJ104X

Panasonic

100 kΩ SMD resistors, 5%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2GEJ104X

ERJ-2RKF4751X

Panasonic

R10, R11, R15, R22 4.75 kΩ SMD resistors, 1%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2RKF4751X

ERJ-3EKF1004V

Panasonic

R38, R39 1 MΩ SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1004V

ERJ-3EKF1501V

Panasonic

R5, R33 1.5 kΩ SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1501V

ERJ-3GEYJ103V

Panasonic

R23, R24 10 kΩ SMD resistors, 5%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3GEYJ103V

ERJ-6ENF1001V

Panasonic

R1 1 kΩ SMD resistor, 1%, 1/8 W, 0805, AEC-Q200 Panasonic ERJ-6ENF1001V

ERJ-6ENF1002V

Panasonic

R13, R18 10 kΩ SMD resistors, 1%, 1/8 W, 0805, AEC-Q200 Panasonic ERJ-6ENF1002V

ERJ-6ENF2002V

Panasonic

R14 20 kΩ SMD resistor, 1%, 1/8 W, 0805, AEC-Q200 Panasonic ERJ-6ENF2002V

CL10B106MQ8NRNC

Samsung

C5, C7 10 μF ceramic capacitors, 6.3 V, 20%, X7R, 0603 Samsung CL10B106MQ8NRNC

TSW-104-08-G-S

Samtec

P3 4-position PCB header strip, 0.100" pitch Samtec TSW-104-08-G-S

TSW-105-08-G-S

Samtec

P2 5-position PCB header strip, 0.100" pitch Samtec TSW-105-08-G-S

TSW-118-16-G-S

Samtec

P4 18-position PCB header strip, 0.100" pitch Samtec TSW-118-16-G-S

CGA3E2NP02A220J080AA

TDK

C11 22 pF ceramic capacitor, 100 V, 5%, C0G, 0603, AEC-Q200 TDK CGA3E2NP02A220J080AA

CGA3E3X8R1H104K080AB

TDK

C6, C10, C15, C18, C19 0.1 μF ceramic capacitors, 50 V, 10%, X8R, 0603, AEC-Q200 TDK CGA3E3X8R1H104K080AB

RFD14N05LSM

Onsemi

Q1 N-channel MOSFET, 14 A, 50 V, 3-pin DPAK Onsemi RFD14N05LSM

ADMT4000

Analog Devices

The ADMT4000 is a magnetic turn, counter sensor capable of recording turns of an external magnetic field with zero power.

LT3461

Analog Devices

The EVAL-ADMT4000SD1Z uses the 3.3 V supply from the SDP interface to power all the components on the board except for the LT3461, which is powered from the 5 V USB. The LT3461 is a step up DC/DC converter used for the magnetic reset circui

ADMT4000BRUZAB

Analog Devices

U1 True power-on multiturn sensor Analog Devices ADMT4000BRUZAB

ERA-6AEB2613V

Panasonic

R7 261 kΩ SMD resistor, 0.1%, 1/8 W, 0805, AEC-Q200 Panasonic ERA-6AEB2613V

DS2

Diodes

DS1, DS2 Diodes, hyper bright, low current, light emitting diode (LED),

SOT-23

Diodes

Q2 N-channel MOSFET, 200 mA, 50 V, 3-pin SOT-23 Diodes Incorporated BSS138-7-F

AEC-Q200

Kemet

C9 4.7 μF ceramic capacitor, 16 V, 5%, X7R, 0805, AEC-Q200 Kemet C0805X475J4RACAUTO

AEC-Q200

Kemet

C1, C2 1 μF ceramic capacitors, 10 V, 5%, X8L, 0805, AEC-Q200 Kemet C0805C105J8NACAUTO

AEC-Q200

Murata

C12 1100 pF ceramic capacitor, 50 V, 1%, X8G, 0603, AEC-Q200 Murata GCM1885G1H112FA16D

AEC-Q200

Panasonic

R13, R18 10 kΩ SMD resistors, 1%, 1/8 W, 0805, AEC-Q200 Panasonic ERJ-6ENF1002V

AEC-Q200

Panasonic

R10, R11, R15, R22 4.75 kΩ SMD resistors, 1%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2RKF4751X

AEC-Q200

Panasonic

R8 10 kΩ SMD resistor, 0.1%, 1/8 W, 0805, AEC-Q200 Panasonic ERA-6AEB103V

AEC-Q200

Panasonic

R7 261 kΩ SMD resistor, 0.1%, 1/8 W, 0805, AEC-Q200 Panasonic ERA-6AEB2613V

AEC-Q200

Panasonic

R38, R39 1 MΩ SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1004V

AEC-Q200

Panasonic

R23, R24 10 kΩ SMD resistors, 5%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3GEYJ103V

AEC-Q200

Panasonic

R14 20 kΩ SMD resistor, 1%, 1/8 W, 0805, AEC-Q200 Panasonic ERJ-6ENF2002V

AEC-Q200

Panasonic

R1 1 kΩ SMD resistor, 1%, 1/8 W, 0805, AEC-Q200 Panasonic ERJ-6ENF1001V

AEC-Q200

Panasonic

100 kΩ SMD resistors, 5%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2GEJ104X

AEC-Q200

Panasonic

R32 0.1 Ω SMD resistor, 1%, 1/6 W, 0402, AEC-Q200 Panasonic ERJ-2BSFR10X

AEC-Q200

Panasonic

R5, R33 1.5 kΩ SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1501V

AEC-Q200

Panasonic

0 Ω SMD resistors, jumper, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2GE0R00X

AEC-Q200

TDK

C6, C10, C15, C18, C19 0.1 μF ceramic capacitors, 50 V, 10%, X8R, 0603, AEC-Q200 TDK CGA3E3X8R1H104K080AB

AEC-Q200

TDK

C11 22 pF ceramic capacitor, 100 V, 5%, C0G, 0603, AEC-Q200 TDK CGA3E2NP02A220J080AA