Datasheet

 700mA max or 2.1W max for each supply when using an external wall power supply
 Single channel voltmeter (AC, DC, ±25V)
 Network analyzer – Bode, Nyquist, Nichols transfer diagrams of a circuit. Range: 1Hz to
10MHz
 Spectrum Analyzer – power spectrum and spectral measurements (noise floor, SFDR,
SNR, THD, etc.)
 Digital Bus Analyzers (SPI, I²C, UART, Parallel)
The Analog Discovery 2 was designed for students in typical university-based circuits and
electronics classes. Its features and specifications, as well as the additional requirements of
operating from USB or external power, maintaining the small and portable form factor, the
robustness to withstand student use in a variety of environments, and low-cost are based
directly on feedback that was obtained from numerous professors from several universities.
Meeting all of these requirements proved challenging; however, the task ultimately generated
some new and innovative circuits. This document describes the Analog Discovery 2's
circuits, with the intent of providing a better understanding of its electrical functions,
operations, and a more detailed description of the hardware’s features and limitations. It is
not intended to provide enough information to enable complete duplication of the Analog
Discovery 2, or to allow users to design custom configurations for programmable parts in the
design.
Analog Discovery 2 is the next generation of the very popular Analog Discovery. The main
improvements are:
 Ability to use an external power supply and consequently deliver more power to user
supplies. When USB-powered, the Analog Discovery 2 delivers the same power as the
Analog Discovery.
 New enclosure with enhanced design and improved connector reliability.
 Improved signal/noise and crosstalk performances for both the scope and waveform
generator.
 Better defined bandwidth for both the scope and waveform generator.
1.1 Architectural Overview and Block Diagram
Analog Discovery 2's high-level block diagram is presented in Fig. 2 below. The core of the
Analog Discovery 2 is the Xilinx® Spartan®-6FPGA (specifically, the XC6SLX16-1L device).
The WaveForms application automatically programs the Discovery’s FPGA at start-up with a
configuration file designed to implement a multi-function test and measurement instrument.
Once programmed, the FPGA inside the Discovery communicates with the PC-based
WaveForms application via a USB 2.0 connection. The WaveForms software works with the
FPGA to control all the functional blocks of the Analog Discovery 2, including setting
parameters, acquiring data, and transferring and storing data.