IEPE Sensor analog front-end with digital interface reference design
TIDA-010045
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Key Document
Description
Industrial vibration sensing is a crucial process in condition monitoring, which is necessary for predictive maintenance. An integrated electronic piezoelectric (IEPE)TM sensor is the most common vibration sensor used in the industrial environment. This design is simple sensor analog front-end suitable for interfacing the IEPE sensor to integrated MSP432, allowing a compact implementation for IEPE to IO-Link interface.
Features
- Front-end for single IEPE sensor input
- 14-bit resolution
- 20 kHz bandwidth
- Uses MSP432 integrated ADC
- 4mA fixed curent source excitation
- ±6 V AC input, 500 kΩ input impedance
- Wire-break detection
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Schematic/Block Diagram
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Design Guide
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TI Devices (12)
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| Sample & Buy |
Design Kits & Evaluation Modules |
| CSD18541F5 |
60V, N ch NexFET MOSFET™, single LGA 1.5 x 0.8mm, 65mOhm |
MOSFETs |
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| INA190 |
40V, bi-directional, ultra-precise current sense amplifier w/picoamp IB & ENABLE |
Current sense amplifiers |
Sample & Buy |
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| LMZM23600 |
36-V, 0.5-A Step-Down DC/DC Power Module in 3.8-mm × 3-mm Package |
Step-down (buck) regulators |
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| MSP432P401R |
SimpleLink™ ultra-low-power 32-bit Arm Cortex-M4F MCU With Precision ADC, 256KB Flash and 64KB RAM |
Microcontrollers (MCU) |
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| OPA196 |
Single, 36-V, Low Power, All-Purpose Amplifier with MUX-Friendly Input
|
Operational amplifiers (op amps) |
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| OPA4171 |
4-Channel, 3-MHz, 36V, MicroPower, RRO, general purpose op amp |
Operational amplifiers (op amps) |
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| TIOL111 |
IO-Link device transceiver with integrated surge protection |
Interface |
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| TL4050C |
Fixed voltage, 0.5%, 50-ppm/°C precision micropower shunt voltage reference |
Voltage references |
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Not Available |
| TLV431 |
1.5% accuracy, low-voltage, adjustable precision shunt regulator |
Voltage references |
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| TLV760 |
100-mA, 30-V, low-dropout voltage regulator |
Power management |
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| TPS798-Q1 |
Automotive 50-mA, off-battery (50-V), low-dropout voltage regulator with reverse current protection |
Power management |
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Not Available |
| TVS3300 |
33-V flat-clamp surge protection device |
Circuit protection ICs |
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CAD/CAE symbols
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Step 1: Download and install the free download.
Step 2: Download the Symbol and Footprint from the CAD.bxl file table.
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Technical documentation
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User guides (1)
| Title | Type | Size (KB) | Date |
| | PDF | 1891 |
17 Dec 2018
|
Design files (6)
| | ZIP | 1188 |
17 Dec 2018
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| | ZIP | 1390 |
17 Dec 2018
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| | PDF | 1021 |
17 Dec 2018
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| | PDF | 207 |
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| | PDF | 44 |
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| | PDF | 291 |
17 Dec 2018
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