Wireless pH Sensor Transmitter (DevPack for SensorTag) Reference Design

(ACTIVE) TIDA-00561

Description & Features

Technical Documents

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Key Document

Description

The TIDA-00561 shows how to build an industrial-grade wireless pH transmitter for process control.

This TI Design includes a designed pH front-end, which can be connected directly via its onboard connector to most pH probes used in process control. The performance data was tested and characterized (input range 0 to 14 pH, overall tested accuracy +/- 0.01pH) to ensure compatibility with process instrumentation needs.

Because TIDA-00561 form factor and electrical connections are compatible with the TI SimpleLink™ CC2650 SensorTag ecosystem, a simple firmware update is enough to select the wireless connectivity technology: Bluetooth® Smart, ZigBee® or 6LoWPAN, among others.

The firmware used for testing and characterization is Bluetooth Smart, which has the highest presence ratio in portable equipment, making testing and demonstration easier.Once you select the wireless technology for your industrial wireless network, you can start collecting data with the associated gateway, which then allows you to run analytics either on a PC or directly on the Sitara-powered BeagleBone Black.

Features
  • Isolated (wireless) pH sensor transmitter
  • BLE interface
  • pH input bias current <7pA
  • Less than 200µA in advertising mode
  • Include PT100 for temp compensation
  • pH range: 0 to 14
  • Accuracy: @ 25°C ±0.01 pH
  • Repeatability: @ 25°C ±0.01 pH
  • Temp Range: -40 to +125C

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


  




TI Devices (4)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ADS1120  16-Bit 2kSPS 4-Ch Low-Power Delta-Sigma ADC With PGA and VREF for Small Signal Sensors  Analog-to-Digital Converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
LMP91200  Integrated AFE for Low-Power pH Sensing Applications  Specialty Sensors  Sample & Buy View Design Kits & Evaluation Modules
REF3220  2.048 4ppm/Degrees C, 100uA SOT23-6 Series (Bandgap) Voltage Reference  Voltage Reference  Sample & Buy Not Available
TS5A3159  1-Ohm SPDT Analog Switch  Switches & Multiplexers  Sample & Buy View Design Kits & Evaluation Modules

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 910 03 Jun 2016 289
White papers (2)
Title Abstract Type Size (KB) Date Views
PDF 3648 07 Jul 2017 1,068
PDF 1774 02 Nov 2016 1,505
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 208 18 Jun 2015 71
ZIP 504 18 Jun 2015 52
PDF 630 18 Jun 2015 100
PDF 116 18 Jun 2015 52
PDF 84 18 Jun 2015 65
PDF 295 18 Jun 2015 284
Related Tools & Software

Reference Designs (2)

Design Kits & Evaluation Modules (1)

Name Part Number Tool Type
SimpleLink™ Bluetooth low energy/Multi-standard SensorTag  CC2650STK  Development Kits 

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