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BlackADC 820

The BlackADC Board is FPGA based ADC board which can be configured to connect 16-Bit MCU, embedded system, or any digital system.

The board provides 8 channels AFE utilizing Analog Device AD7401 chip which can be configured up-to 20Mhz sampling frequency, accepting a differential input signal of ±250 mV (±320 mV full scale).

The AD7401A is offered in a 16-lead SOIC and has an operating temperature range of −40°C to +125°C.

Eight AD7401 chips are directly connected to Altera Cyclone IV FPGA, so that all the channels can be sampled and data capturing can be done simultaneously.

The data so captured is stored in internal FPGA RAM and be acquired by 16-bit expansion port.

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


Eight channel 16-bit 20MPS

Based on AD7401 connected FPGA in parallel

Input range differential input signal of ±250 mV

±320 mV full scale

Single ended AC or DC coupled analog input

Optional analog differential inputs

On board Cyclone IV EP4CE6E22 FPGA device

Coaxial front panel inputs for SSMC

On board switch, LED Array

Two sets of 20 pin expansion port

Compatible to Raspberry Pi.

Multiple clock setting:
Internal: 50Mhz and 27Mhz
External clock, connected to FPGA.

PC connectivity by Mini-UART port

JTAG and AS programmable port available for FPGA programming.

Many onboard test point

LPC (Low pin count) compatible

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:

1) BlackADC board

2) 5V DC adaptor

3) Altera Byte Blaster

4) Software CD:
a. FPGA programmable file
b. Software for data capturing on PC by UART
c. Drivers
d. Manual
e. Getting started: Tutorial

Typical Applications
Data Acquisition System

8 Sensors with different sampling frequency can be connected.

All sensor data can be captured in separate internal RAM.

On board LEDS can be used for status update for system.

On board switches can be used for hard control like panel.

Using UART interface, data can be received on PC.

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

Sonar/Radar Front-End receive

8 ultrasound transducer can be connected with suitable LNA interface to the board

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

With on board FPGA and PLL, the frequency and phase of each transducer can be tuned easily.

Prototyping Ultrasound System

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

Related Education Program:
DD 510 DD 520 DD 530 DD 540
Digital Design Techniques & Methodology Digital Design Techniques & Methodology Digital Design Techniques & Methodology Digital Design Techniques & Methodology
VHDL for FPGA Design (I) VHDL for FPGA Design (II) VHDL for FPGA Design(III) VHDL for FPGA Design(IV)
Beginners Introductory level Intermediate level Advanced Level

Combinational and Sequential Logic Design for PLDs and ASICs,

Design and implement fundamental structures

Design and implement synchronous FSM

Designing with FPGA

VHDL concepts and constructs essential for FPGA design

Write VHDL for RTL synthesis

Targeting code to an FPGA device

Test benches

Tool flow from VHDL through simulation, synthesis and PnR

Overview of ASIC and FPGA including a survey of state of the art devices

Effective Design methodologies and flows

Advance concepts of hardware simulation and synthesis

Introduction to Hardware-Software Co-design

VHDL coding for complex FPGA and ASIC design

Sophisticated Test benches

Coding hierarchical designs using multiple VHDL design libraries

Writing re-usable, parameterisable VHDL