SKU: SBCD-1423
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Waveshare Raspberry Pi High-Precision AD/DA Board

₹4,149.00 (Inclusive of all taxes)
Out of Stock

Expand your Raspberry Pi’s capabilities with the Waveshare High-Precision AD/DA Expansion Board, featuring an 8-channel, 24-bit ADS1256 ADC and a 2-channel, 16-bit DAC8552, ideal for advanced data acquisition and control applications.

Features

  • Integrates 8-channel 24-bit ADS1256 ADC with up to 30ksps sampling rate.
  • Features 2-channel 16-bit DAC8552 for high-resolution analog output.
  • Standard Raspberry Pi 40PIN GPIO header for broad compatibility.
  • Supports Raspberry Pi series boards and Jetson Nano.
  • Provides both screw terminals and pin headers for versatile analog input connections.

Out of stock

Description

The Waveshare High-Precision AD/DA Expansion Board addresses the lack of integrated analog-to-digital and digital-to-analog conversion capabilities on the Raspberry Pi’s GPIO interface. This robust expansion board equips your Raspberry Pi with a powerful 24-bit ADS1256 ADC, offering 8 channels (including 4 differential inputs) with an impressive 30ksps sampling rate, alongside a 16-bit DAC8552 providing 2 channels of high-resolution analog output.

Designed for engineers and makers, the board features a standard Raspberry Pi 40PIN GPIO extension header, ensuring wide compatibility with various Raspberry Pi models and the Jetson Nano. It includes screw terminals and pin headers for flexible analog signal input, with the pinout aligning with the Waveshare sensor interface standard for easy integration of analog sensor modules. Onboard components like a 7.68M crystal, LM285-2.5 reference voltage, and test jumpers facilitate reliable and straightforward signal demonstration and development.

Key Features

  • Standard Raspberry Pi 40PIN GPIO extension header, ensuring broad compatibility with Raspberry Pi series boards and Jetson Nano.
  • Integrated ADS1256, an 8-channel, 24-bit high-precision ADC (supporting 4 differential inputs) with a 30ksps sampling rate.
  • Incorporates DAC8552, a 2-channel, 16-bit high-precision DAC for accurate analog output.
  • Multiple input interfaces including pin headers for direct analog signal connection.
  • Pinout compatible with Waveshare sensor interface standard, simplifying connection of various analog sensor modules.
  • Onboard input/output interfaces via screw terminals for secure analog/digital signal connections.
  • Features dedicated AD/DA detect circuits, aiding in easy signal demonstration and testing.
  • Includes a 7.68M crystal, LM285-2.5 reference voltage source, and testing jumpers for comprehensive functionality.

Applications

  • High-precision data acquisition systems for scientific research.
  • Industrial control and automation requiring analog sensing and output.
  • Sensor interfacing for environmental monitoring and instrumentation.
  • Robotics control with analog feedback and actuation.
  • Educational projects in electronics and embedded systems.

Technical Specifications

Board TypeExpansion Board
ADC ChipADS1256
ADC Resolution24-bit
ADC Channels8 (4 differential)
ADC Sampling Rate30ksps (Max)
DAC ChipDAC8552
DAC Resolution16-bit
DAC Channels2
InterfaceRaspberry Pi 40PIN GPIO
Reference VoltageLM285-2.5
Crystal Oscillator7.68M
Dimensions65mm x 56.2mm

Frequently Asked Questions

What is the primary function of the Waveshare High-Precision AD/DA Board?

This board provides high-resolution analog-to-digital (ADC) and digital-to-analog (DAC) conversion for Raspberry Pi. It integrates an 8-channel 24-bit ADS1256 ADC for precise data acquisition and a 2-channel 16-bit DAC8552 for accurate analog signal generation, extending the Pi's capabilities for analog interaction.

Which Raspberry Pi models and other development boards are compatible with this HAT?

The board features a standard 40PIN GPIO extension header, making it compatible with all Raspberry Pi models that use this header, including Raspberry Pi 4, 3B+, 3B, Zero, and others. It also supports the NVIDIA Jetson Nano, expanding its utility across different SBC platforms.

What are the key technical specifications for the ADC and DAC chips on board?

The ADC chip is an ADS1256, offering 8 channels of 24-bit resolution with a maximum sampling rate of 30ksps, supporting 4 differential inputs. The DAC chip is a DAC8552, providing 2 channels of 16-bit resolution. These specifications ensure high accuracy for sensitive analog applications.

How does this board handle input/output connections for analog signals?

The board offers flexible connection options, including both screw terminals and pin headers for analog input/output. The pinout of the headers is compatible with the Waveshare sensor interface standard, which simplifies connecting various analog sensor modules without custom wiring, enhancing ease of use.

What reference voltage does the ADC use, and is it configurable?

The ADC chip (ADS1256) utilizes an onboard LM285-2.5 component, which provides a stable 2.5V reference voltage for accurate conversions. For single-ended AD inputs, the AINCOM terminal serves as the reference, which can be connected to GND or an external reference voltage if required for specific applications.

Package Includes

  • 1 x High-Precision AD/DA Board
  • 1 x Raspberry Pi screws pack (2pcs)

Additional Information

Weight 0.032 kg
Dimensions 6.5 × 5.62 cm