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BlackAdADC 850

The BlackAdADC/DAQ Board is FPGA based ADC board which can be configured to connect Raspberry pi or any MCUs.

The board provides 8 channels AFE utilizing Analog Device AD9273 chip which can be configured up-to 50MHz sampling frequency, accepting a differential input signal of ±500 mV (±733 mV full scale).

The AD9273 is offered in a 100-lead TQFP and has an operating temperature range of −40°C to +85°C. AD9273 chip is directly connected to Altera Cyclone III FPGA, so that all the channels can be sampled and data capturing can be done simultaneously.

The data so captured is expended 16-bit word and stored in internal FPGA DPRAM.

Thus the data can be read/wrote to file in Raspberry board via SPI.

Powered with 5V DC supply makes it very low power consumption board.


Eight channel 12-bit 50MPS

Based on AD9273 connected FPGA in LVDS

8 channels of LNA, VGA, AAF and ADC

SPI-programmable gain : 15.6/17.9/21.3 dB

Variable Linear gain control
• Attenuator range : -42 dB ~ 0 d
• PGA gain : 21/24/27/30d

Single-ended input signal
• Gain 15.6dB: 733 mVpp
-17.8dB: 550mVpp
-21.3dB: 367mVpp

Single ended AC or DC coupled analog input

Optional analog differential inputs

On board Cyclone III EP3CE5 FPGA device

Coaxial front panel inputs for SMA

Two sets of 12-pin expansion port

Compatible to Raspberry Pi.

Variable ADC sampling clock - optional
• 10 MHz ~ 50 MHz

User connectivity by SPI port

JTAG and AS port available for FPGA programming.

Noise shielding case – optional

No extra cooling required


SONAR system

RADAR system

Medical equipment prototyping

Wireless communication receivers

High sampling test and measurement systems


User Guide

Reference Firmware design (VHDL)

Reference Altera Project for Cyclone series

Email support

Product Includes:

8-ch ADC board

5V DC adaptor

Altera Byte Blaster

Software CD:
• FPGA programmable file
• Software for data capturing on Raspberry pi
• Drivers
• Manual & Getting started: Tutorial

Typical Applications
 Sonar/Radar Front-End receive

8 ultrasound can be connected suitable LNA/VGA/AAF and ADC.

All sensor data can be captured in separate internal DPRAM.

Using SPI, receiving signal gain can be controlled by LNA/VGA register update.

Using SPI, data can be received and stored on Raspberry pi.

Embedded board can be connected by expansion GPIO for embedded platform.

The board can be connected with combination of analog multiplexer and switching circuit for prototyping complete ultrasound system

 Data Acquisition System

8 Sensors with same sampling frequency can be connected synchronously

The captured signal can be post processed on FPGA/Raspberry pi/Embedded board

With on board FPGA and PLL, ADC sampling frequency can be modified easily.