IEPE Vibration Sensor Interface for PLC Analog Input Reference Design


Design files


Industrial vibration sensing is crucial part in condition monitoring necessary for predictive maintenance. Integrated Electronic Piezoelectric (IEPE) sensor is the most common vibration sensor used in industrial environment. This design is a full analog front-end for IEPE sensor interface demonstrating how to achieve flexible high-resolution, high-speed conversion with low-power and small-footprint implementation.

  • Single channel IEPE sensor analog input
  • 24-bits conversion resolution
  • Programmable data rate: 265 kSPS to 32kSPS
  • 20 kHz bandwidth signal bandwidth
  • ±10V AC input, 250 kΩ input impedance
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUD62.PDF (4693 K)

Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Detailed overview of design layout for component placement

TIDRRQ3.ZIP (1517 K)

Files used for 3D models or 2D drawings of IC components


Design file that contains information on physical board layer of design PCB

TIDRRQ2.PDF (1334 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

4-20mA signal conditioners

XTR111Voltage-to-current converter/transmitter with 3-V to 15-V regulator and resistor set I/O ratio

Data sheet: PDF
Analog switches & muxes

TS3A50173.3-V, 4:1, 2-channel general-purpose analog multiplexer

Data sheet: PDF | HTML

LP2901Quad low-power industrial grade standard comparator

Data sheet: PDF
Fully differential amplifiers

THS4551Low Noise, Precision, 150MHz, Fully Differential Amplifier

Data sheet: PDF | HTML
General-purpose op amps

LMV751Single, 5.5-V, 5-MHz, low noise (6.5-nV/√Hz), 1-mV offset operational amplifier

Data sheet: PDF
Precision ADCs

ADS127L0124-Bit, 512kSPS, 1-Ch, Very-Low-Power, Wide-Bandwidth Delta-Sigma ADC

Data sheet: PDF | HTML
Precision DACs (≤10 MSPS)

DAC53118bit, Single Channel, 80uA, 1.8V-5.5V DAC in SC70 Package

Data sheet: PDF | HTML
Series voltage references

REF60252.5-V, 5-ppm/°C high-precision voltage reference with integrated buffer & enable pin

Data sheet: PDF | HTML
Shift registers

SN74HC5958-bit shift registers with 3-state output registers

Data sheet: PDF | HTML

Start development

Design tools & simulation

Simulation model

TIDA-01471 Simulation (Fault) — TIDM021.ZIP (23 K)

Simulation model

TIDA-01471 Simulation (Full) — TIDM022.ZIP (49 K)

Simulation model

TIDA-01471 Simulation (ZIN) — TIDM023.ZIP (31 K)

Technical documentation

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Type Title Date
* Design guide IEPE Vibration Sensor Interface Reference Design for PLC Analog Input Jun. 19, 2017

Related design resources

Design tools & simulation

TINA-TI SPICE-based analog simulation program

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