Skip to main content

Zest_Sensor_4-20mA

Overview

The Zest_Sensor_4-20mA is an electronics development board for 6TRON open source platform built around the ADS131A04 from Texas Instruments.

The ADS131A04 specifications include:

  • Four-channel, simultaneously sampling analog-to-digital converter

  • Delta-Sigma (ΔΣ) converter topology

  • 24-bit resolution (~18-bit resolution @ 2.5kHz)

  • Data rate up to 125kHz

  • Internal or external reference and oscillator

  • Differential or pseudo-differential inputs

On-board 4.5V precision reference and 25.000MHz TCXO oscillator.

Pseudo-differential converter input voltage range: 0-4.5V

12 to 48V supply voltage for the sensors through 6TRON Bus and I/O connectors

Selectable input conditioning for current mode (4-20mA) or voltage (0-5V or 0-10V) sensor interface

The Zest_Sensor_4-20mA offers 6TRON users an analog-to-digital converter (ADC) for data acquisition, instrumentation, measurement applications.

Zest_Sensor_4-20mA

Specifications

STSAFE-A110 features:

  • Secure boot
  • Firmware update
  • Usage monitoring
  • Pre-loading of Sigfox™ or LoRaWAN® identifiers
  • Unique serial number
  • Active shield
  • Monitoring of environmental parameters
  • Fault injection & side channel attacks protection
  • Operating Temperature Range: -40 to +105°C
  • I2C (@0x20) Interface
FeatureDetails
Connectivity4 x 5-pin headers for sensor interface (power + data) 80-pin 6TRON header
ConditioningCurrent mode: 4-20mA Voltage mode: 0-5V or 0-10V
Board size80 x 39 mm
Power Supply12 to 48V from stack recommended for sensor supply 5.2 to 12V from stack for board supply
CategoryZest_Sensor

Block Diagram

The graphics below gives an overview of the board features and connections.

Zest_Sensor_4-20mA

80-pin 6TRON header

This table shows how the pinout on Zest_Sensor_4-20mA corresponds to the pinout on the 6TRON BUS connector (the latter shown in the two middle columns).

Description6TRON functionPin numberPin number6TRON functionDescription
-VJACK12VJACK-
-VJACK34VJACK-
-VHV56VHV-
-VHV78VHV-
Reset (alternate)DIO8910VIN_EN-
SPI Chip Select (alternate)DIO71112DIO9-
DRDY (alternate)DIO61314DIO10-
-MD1516DIO11-
ResetDIO51718DIO12-
GroundGND1920GNDGround
GroundGND2122GNDGround
6TRON Stack Power SupplyVIN2324VIN6TRON Stack Power Supply
6TRON Stack Power SupplyVIN2526VIN6TRON Stack Power Supply
-VB_EN2728DIO13DRDY (alternate)
-VB_OUT2930DIO14SPI Chip Select (alternate)
-DAC13132DIO15Reset (alternate)
-ADC43334DIO16-
-ADC33536DIO17-
-ADC23738DIO18-
-ADC13940GND-
-EXT_NRST4142GND-
-DIO44344VREF-
-DIO34546DIO19-
-DIO24748DIO20-
DRDYDIO14950DIO21-
-WKUP5152DIO22-
-ICAPT5354DIO23-
-PWM35556DIO24-
-PWM25758DIO25-
-PWM15960DIO26-
SPI Chip SelectSPI1_SS6162DIO27-
SPI ClockSPI1_SCK6364DIO28-
SPI MISOSPI1_MISO6566DIO29-
SPI MOSISPI1_MOSI6768DIO30-
-UART1_TX6970DIO31-
-UART1_RX7172DIO32-
-I2C1_SDA7374DIO33-
-I2C1_SCL7576DIO34-
-CAN1_TX7778DIO35-
-CAN1_RX7980DIO36-

Software Support

The Zest_Sensor_4-20mA provides a demo example developed using Mbed OS. The board can run on Zest Core development boards.

Environmental impact

The Eco score of the Zest_Sensor_4-20mA is expressed in points representing the environmental impact of an average European per year.

zest_sensor_4-20ma

zest_sensor_4-20ma

Eco-score details

BOM

Componentdataunit
Passive electronic component0,23g
Active electronic component0,02g
LED0,00g
Components(average)0,01g
Connectors Switchs3,67g
Logique type integrated circuit0,38g
Memory type integrated circuit0,00g
PCB3120mm²

Consumption

Low voltage electricity voltage France
Current20mA
Supply voltage5V
Autonomy100h
% use75%
Power0,0075kWh

Ressources