PicoScope 3425

High resolution, differential input oscilloscope

PicoScope 3425 Specifications

Oscilloscope - vertical
Input channels 4
Bandwidth 5 MHz
(3 MHz on 100 mV range)
Rise time (calculated) 70 ns
Input type Differential voltage,
touch-proof BNC connectors with 4 mm ground sockets
Vertical resolution 12 bits
Enhanced vertical resolution 16 bits
Input sensitivity 20 mV/div to 80 V/div (10 vertical divisions)
Input voltage ranges ±100 mV to ±400 V in 12 ranges
Common–mode voltage range
To ensure measurement accuracy
30 V (on 100 mV to 5 V ranges)
400 V (on 10 V to 400 V ranges)
Input coupling Software selectable AC/DC
Input impedance 12.4 MΩ (on 100 mV to 5 V ranges)
10.1 MΩ  (on 10 V to 400 V ranges)
Input capacitance 12 pF
DC accuracy ±1 %
Maximum safe voltages
Any input above scope ground

400 V
400 V (600 V transient)
Measurement category rating CAT I
Oscilloscope — horizontal
Maximum sampling rate (real-time)
One channel in use
Two channels in use
Three or four channels in use

20 MS/s
10 MS/s
5 MS/s
Buffer memory
One channel enabled, up to 100 ms/div
Two channels enabled, up to 100 ms/div
Three or four channels enabled, up to 100 ms/div
Over 100 ms/div

512 kS/channel
256 kS/channel

128 kS/channel
2 MS/channel
Maximum buffer segments 10,000
Timebase accuracy ±50 ppm
Dynamic performance (typical)
Noise < 10 LSB
Linearity 12 bits
Source Channels A to D
Trigger modes Free run, auto, repeat, single
Trigger types Edge, window, pulse width, window pulse width, level dropout, window dropout, interval
Trigger sensitivity Digital triggering provides 1 LSB accuracy up to full bandwidth
Maximum pre-trigger capture Up to 100% of capture size
Maximum post-trigger delay Up to 4 billion samples
Trigger level All trigger levels settable with 1 LSB resolution across input range
Spectrum analyzer
Frequency range DC to full bandwidth of scope
Display modes Magnitude, average, peak hold
Windowing functions Rectangular, Gaussian, triangular, Blackman, Blackman–Harris, Hamming, Hann, flat-top
Number of FFT points Selectable from 128 up to half available buffer memory in powers of 2
Scale / units X axis : linear or log 10
Y axis : logarithmic (dbV, dBu, dBm, arbitrary) or linear (volts)
Math channels
General functions −x, x+y, x−y, x*y, x/y, x^y, sqrt, exp, ln, log, abs, norm, sign, sin, cos, tan, arcsin, arccos, arctan, sinh, cosh, tanh, derivative, integral, delay
Filter functions Low pass, high pass, band stop, band pass
Graphing functions Frequency, duty cycle
Multi-waveform functions Min, max, average, peak
Operands Input channel, reference waveforms, time, constants, pi
Automatic measurements
Scope mode AC RMS, true RMS, cycle time, DC average, duty cycle, falling rate, fall time, frequency, high pulse width, low pulse width, maximum, minimum, peak to peak, rise time, rising rate.
Spectrum mode Frequency at peak, amplitude at peak, average amplitude at peak, total power, THD %, THD dB, THD+N, SFDR, SINAD, SNR, IMD
Statistics Minimum, maximum, average and standard deviation
Serial decoding
Protocols 1-Wire, ARINC 429, CAN, DCC, DMX512, I²C, I²S, LIN, PS/2, SENT, SPI, UART/RS-232, USB 1.0
Inputs All input channels with any mixture of protocols
Mask limit testing
Mask generation Auto generate from captured waveform, manual drawing, manual coordinate entry
Actions Highlight on screen, select in buffer overview, activate alarm
Statistics Pass/fail, failure count, total count
Initiating events Capture, buffer full, mask fail
Alarm actions Beep, play sound, stop/restart capture, run executable, save current buffer/all buffers, trigger signal generator
Interpolation Linear or sin(x)/x
Persistence modes Digital color, analog intensity, fast, custom
Data export
Output file formats BMP, CSV, GIF, JPG, MATLAB 4, PDF, PNG, PicoScope data, PicoScope settings, TXT
Output functions Copy to clipboard, print
Temperature range (operating) 0 °C to 40 °C
Temperature range (stated accuracy) 20 °C to 30 °C
Temperature range (storage) –20 °C to +60 °C
Humidity range (operating) Minimum 5% RH non-condensing
Maximum 80% RH non-condensing, decreasing linearly to 50% at 40 °C
Humidity range (storage) 5% to 90% RH, non-condensing
Environmental protection Dry environment
Maximum altitude 2000 m above sea level
Pollution level No pollution, or only dry, non-conductive pollution
Physical properties
Dimensions 255 x 170 x 40 mm (approx 10.0 x 6.7 x 1.6 in)
Weight 920 g (approx 2 lb)
Windows software PicoScope for Windows
PicoLog for Windows
Software development kit (SDK)
Windows 7, 8 or 10 recommended (read more)
Mac OS X software PicoScope for Mac OS X (beta)
Software development kit (SDK)
Mac OS X version 10.9 or 10.10 recommended
Linux software PicoScope for Linux (beta)
Software development kit (SDK)
See Linux Software & Drivers for details of supported distributions
Languages Chinese (simplified), Chinese (traditional), Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Romanian, Russian, Spanish, Swedish, Turkish
Additional hardware (supplied) Carry case
USB 2.0 cable
User manuals and software CDROM
2 x multimeter test probes
4 x screened BNC to 4 mm plug leads
4 x current clamp adaptors
4 x small crocodile clips
4 x large crocodile clips
8 x sprung hook probes
PC interface USB 2.0 (USB 3.0 and USB 1.1 compatible)
Power requirements Powered from USB port
Safety approvals European LVD standard
EMC approvals European EMC standard, FCC Rules Part 15 Class A
Environmental approvals RoHS compliant
Total satisfaction guarantee In the event that this product does not fully meet your requirements you can return it for an exchange or refund. To claim, the product must be returned in good condition within 14 days.
Warranty 5 years