• 16-Channel 24-Bit ADC Data Acquisition Shield for Arduino

16-Channel 24-Bit ADC Data Acquisition Shield for Arduino

   

ARD-LTC2499

The ARD-LTC2499 is an Arduino compatible shield that contains a Linear Technology LTC2499 24-bit ADC coupled with an LT6654 precision voltage reference. It is capable of converting 16 single-ended channels, 8 differential channels, or any other combination. In addition to measuring voltage, the ADC can interface directly to a variety of sensors including strain gauges, thermocouples, and current shunts. The onboard EEPROM can be used to store calibration and configuration information directly on each ARD-LTC2499 board. A 6-byte EUI-48TM-compatible globally unique ID number is also provided.  The ARD-LTC2499 can be used with other Arduino shields to make a simple, yet very accurate, data acquisition system.

Note:  The normal ARD-LTC2499 is not compatible with Arduinos using 3.3V I/O on the I2C lines, such as the Due, Zero, etc.  This is because the LTC2499 requires a 5V supply to deal with the 4.096V reference voltage, making it incompatible with 3.3V I2C.   Please contact us about options for 3.3V compatibility.

Features

  • 24-bit delta sigma ADC
  • 4.096V precision voltage reference
  • 16 single-ended channels, 8 differential channels, or any combination
  • Optional onboard 5V linear regulator provides clean power to the ADC and reference
  • 128 bytes of onboard EEPROM for storing configuration or calibration values
  • Read-only 6-byte EUI-48TM-compatible globally unique ID
  • Arduino form factor and software library
  • I2C interface

Specifications

2.7"(L) x 2.1"(W)

Input Voltage Range:

0V to VREF/2 (single-ended)
-VREF/2 to +VREF/2 (differential)

Documents

The complete gEDA design files are available on GitHub.

Schematic

Hardware Reference

Arduino Library Reference

LTC2499 Datasheet

LT6654 Datasheet

24AA025E64 Datasheet


Note: Arduino is a registered trademark of Arduino AG.

  • $50.00

  • 1 in stock

Available Options




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News & Application Notes

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The current measurement mode in most multimeters is sufficient for many applications.  However, when measuring the supply current of loads that draw current infrequently in small bursts, it becomes difficult to measure the real, average current consumption accurately due to the slow sample rate of the multimeter.  Many wireless telemetry nodes present exactly such a situation and calculating expected battery life relies on an accurate measurement.  Fortunately, physics comes to our rescue (along with a few widgets to make things easier…).

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