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1. Overview

The Digilent Analog Discovery 2™, developed in conjunction with Analog Devices®, is a

multi-function instrument that allows users to measure, visualize, generate, record, and

control mixed signal circuits of all kinds. The low-cost Analog Discovery 2 is small enough to

fit in your pocket, but powerful enough to replace a stack of lab equipment, providing

engineering students, hobbyists, and electronics enthusiasts the freedom to work with analog

and digital circuits in virtually any environment, in or out of the lab. The analog and digital

inputs and outputs can be connected to a circuit using simple wire probes; alternatively, the

Analog Discovery BNC Adapter and BNC probes can be used to connect and utilize the

inputs and outputs. Driven by the free WaveForms software, the Analog Discovery 2 can be

configured to work as any one of several traditional instruments, which include:

 Two-channel oscilloscope (1MΩ, ±25V, differential, 14-bit, 100Msample/sec, 30MHz+

bandwidth - with the Analog Discovery BNC Adapter Board)

 Two-channel arbitrary function generator (±5V, 14-bit, 100Msample/sec, 12MHz+

bandwidth - with the Analog Discovery BNC Adapter Board)

 Stereo audio amplifier to drive external headphones or speakers with replicated AWG

signals

 16-channel digital logic analyzer (3.3V CMOS, 100Msample/sec)

 16-channel pattern generator (3.3V CMOS, 100Msample/sec)

 16-channel virtual digital I/O including buttons, switches, and LEDs – perfect for logic

training applications

 Two input/output digital trigger signals for linking multiple instruments (3.3V CMOS)

 Two programmable power supplies (0…+5V , 0…-5V). The maximum available output

current and power depend on the Analog Discovery 2 powering choice:

 250mW max for each supply or 500mW total when powered through USB

Summary of content (4 pages)

PAGE 1
. Overview The Digilent Analog Discovery 2™, developed in conjunction with Analog Devices®, is a multi-function instrument that allows users to measure, visualize, generate, record, and control mixed signal circuits of all kinds.
PAGE 2
 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.
PAGE 3
Signals in the Analog Input block, also called the Scope, use “SC” indexes to indicate they are related to the scope block. Signals in theAnalog Output block, also called AWG, use “AWG” indexes, and signals in the Digital block use a D index – all of the instruments offered by the Discovery 2 and WaveForms use the circuits in these three blocks. Signal and equations also use certain naming conventions.
PAGE 4
since the schematic for channel 2 is identical. Indexes are omitted where not relevant. As examples, in equation 44 below, VindiffVindiff does not contain the instrument index (which by context is understood to be the Scope), nor the channel index (because the equation applies to both channels 1 and 2). In equation 33, the type index is also missing because VmuxVmux and VinVin refer to any of P(positive), N (negative) or diff (differential) values.