Spectrum Analyzer Signal Conditioning and Processing for Capturing Arc Signatures Reference Design

(ACTIVE) TIDA-00929

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Key Document

Description

The TIDA-00929 TI design demonstrates bandwidth optimized analog front end (AFE) and real-time FIR implementation using low power to capture broadband frequency spectrum in any waveform. Operational amplifier in each signal path is chosen based on the gain, signal bandwidth, low noise, close to the rail swing requirements while consuming low power. The waveform is processed in real-time both in frequency and time domain using mixed signal ultra low power microprocessor with built in vector math engine.

Features
  • Analog Front End (AFE) for effective passing both low frequency and high frequency while suppressing signal noise
  • Capturing frequency content up to 100kHz in frequency domain by sampling the signal using 12-bit SAR ADC at 200ksps and performing real-time FIR filter in MSP430 using low energy accelerator (LEA) frequency domain by sampling the signal using 12-bit SAR ADC at 200ksps and performing real-time FIR filter in MSP430 using low energy accelerator
  • High frequency time domain analysis: 1). Capturing arc signatures up to 3MHz using internal comparator of MSP430. 2) Noise capture up to 10MHz using external comparator.
  • IQ requirement of 10mA is derived from single-phase AC supply of 85Vrms-270Vrms with capability of powering up to 100mA.
  • Compatible with various sensors like shunt, CT or Rogowski coil

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Design Files

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Bill of Materials (BOM)

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TI Devices (9)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LP5907  250mA Ultra-Low-Noise Low-Iq Low-Dropout (LDO) Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
MSP430FR5994  16 MHz Ultra-Low-Power MCU With 256 KB FRAM, 8 KB SRAM, Low-Energy Vector Math Accelerator  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
OPA835  Ultra Low Power, Rail to Rail Out, Negative Rail In, VFB Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA836  Very Low Power, Rail to Rail out, Negative Rail in, VFB Op Amp  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TLV316  10-MHz, Low-Noise, RRIO, CMOS Operational Amplifier for Cost-Sensitive Systems  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TLV3201  40ns, micro-Power, Rail-to-Rail Input, Single-Channel Comparator with Push-Pull Outputs  Amplifiers  Sample & Buy View Design Kits & Evaluation Modules
TPS3820  Voltage Monitor With Watchdog Timer  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS3828-Q1  Voltage Monitor With Watchdog Timer for Automotive  Power management  Sample & Buy View Design Kits & Evaluation Modules
UCC28880  High Voltage Switcher for Non-isolated AC/DC Conversion  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LP5907 Download Download
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MSP430FR5994 Download Download
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OPA835 Download Download
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OPA836 Download Download
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TLV316 Download
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TLV3201 Download
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TPS3820 Download Download
TPS3828-Q1 Download Download
UCC28880 Download Download

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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 5686 17 Apr 2018 19
Design files (6)
Title Abstract Type Size (KB) Date Views
PDF 71 09 May 2017 7
PDF 1532 09 May 2017 46
PDF 1207 09 May 2017 10
ZIP 1302 09 May 2017 8
ZIP 1495 09 May 2017 10
PDF 275 09 May 2017 6
Related Tools & Software

Development Tools (1)

Name Part Number Tool Type
SPICE-based analog simulation program  TINA-TI  Circuit Design & Simulation 

Models (2)

Title Category Type Size (KB) Date Views
TIDA-00929 Simulation (Power) TINA-TI Spice Model ZIP 42 KB 17 May 2018 2 views
TIDA-00929 Simulation (AFE) TINA-TI Spice Model ZIP 30 KB 17 May 2018 1 view 1 views

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