PicoScope 3000 Series A/B Oscilloscope & MSO User's Guide 9
Copyright © 2012-2013 Pico Technology Limited. All rights reserved. ps3000ab.en r5
4 Product information
Standard oscilloscope connectors
The input channels of these oscilloscopes have standard BNC connectors and standard
input impedances. They are therefore compatible with most oscilloscope probes
including x10 and switched x1/x10 types.
The probes supplied with the these oscilloscopes have been trimmed specifically for
use with the model they are supplied with. For optimum performance, please use the
probes supplied. Although other oscilloscope probes can be used, the specified
performance cannot be guaranteed. Replacement probes matched to your oscilloscope
can be ordered from Pico Technology.
Signal generator (GEN or AWG) output
The GEN or AWG connector is the output of the oscilloscope's built-in signal
generator, which can generate a number of built-in waveforms as well as (B and MSO
models only) user-defined arbitrary waveforms .
If you are using the PicoScope 6 software, refer to the PicoScope 6 User's Guide for
information on how to configure the signal generator.
If you are writing your own software, refer to the PicoScope 3000A Series
Programmer's Guide.
External trigger (EXT) input (not MSOs)
The EXT input can be used as a trigger source. It is selected using the trigger drop-
down menu in the PicoScope software, or using a function call if you are writing your
own software.
The EXT input uses dedicated circuitry with a software-configurable threshold to
detect a trigger signal. This has the advantage of freeing the analog channels for
viewing signals. The input characteristics of the EXT input have been matched to a
scope channel so that a supplied probe can be trimmed on one of the channels and
then used with the EXT input to give best vertical accuracy. If trigger timing accuracy
is critical, we recommend using one of the main input channels as the trigger source.
These channels use accurate digital triggering (to one sample period) and have a
vertical resolution of 1 LSB.
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