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PicoScope Oscilloscope Kits: Specifications

Overview Hardware Software Specifications


This table lists the specifications that are most important to the average customer using the PicoScope for automotive diagnostics. If you have a more specific use for the product (or are just curious), detailed specifications are below this table.

Key specifications at a glance
Model PicoScope 4225 PicoScope 4425
Channels 2 4
Bandwidth 12 bits (16 bits enhanced)
Sampling rate 400 MS/s
Buffer memory 250 M samples
Input ranges (full scale) ±50 mV to ±200 V in 12 ranges
Software supplied PicoScope®, PicoDiagnostics®
Language support Chinese (simplified), Chinese (traditional), Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Romanian, Russian, Spanish, Swedish, Turkish
PC and power requirements Desktop or laptop running Microsoft Windows XP (SP3), Vista, Windows 7 or Windows 8.

Powered from PC USB port (USB 3.0 recommended, USB 2.0 compatible).

Oscilloscope specifications (vertical)
Model PicoScope 4225 PicoScope 4425
Bandwidth 20 MHz (10 MHz on ±50 mV range)
Channels 2 4
Vertical resolution 12 bits
Enhanced vertical resolution 16 bits
DC accuracy ±1% of full scale
Sensitivity 10 mV/div to 40 V/div
Input ranges (full scale) ±50 mV to ±200 V in 12 ranges
Input characteristics 1 MΩ in parallel with 24 pF
Input type Floating, BNC connector 
Input common mode 30 V
Input coupling Software selectable AC/DC
Overvoltage protection ±250 V (DC + AC peak) on single input

Oscilloscope specifications (horizontal)
Maximum sampling rate

1 channel in use

2 channels in use

3 or 4 channels in use

400 MS/s

200 MS/s

100 MS/s
Maximum sampling rate (USB streaming) 20 MS/s (USB 3.0)

10 MS/s (USB 2.0)
Buffer memory 250 M samples
Waveform buffer Up to 10,000 waveforms
Timebase ranges 100 ns/div to 5000 s/div

Dynamic performance (typical)
Crosstalk 4000:1, DC to 20 MHz
Harmonic distortion < −60 dB
SFDR > 60 dB
Noise 220 μV RMS on 50 mV range
Bandwidth flatness DC to full bandwidth (+0.25 dB, −3 dB)
ADC ENOB 10.8 bits

Source Any input channel
Basic triggers Auto, repeat, single, none
Advanced triggers Rising edge, falling edge, edge with hysteresis, pulse width, runt pulse, dropout, windowed
Maximum pre-trigger delay Up to 100% of capture length
Maximum post-trigger delay Up to 4 billion samples

Spectrum analyzer
Frequency range DC to 20 MHz
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 1 million 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 CAN, LIN, I²C, UART/RS-232, SPI, I²S, FlexRay
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

Data export
Output file formats BMP, CSV, GIF, JPG, MATLAB 4, PDF, PNG, PicoScope data, PicoScope settings, TXT
Output functions Copy to clipboard, print

Operating environment

Temperature range


0 °C to 40 °C (15 °C to 30 °C for quoted accuracy)

5% to 80% RH, non-condensing
Storage environment

Temperature range


–20 to +60°C

5% to 95% RH, non–condensing

Physical dimensions
Dimensions 190 x 160 x 40 mm (approx 7.5 x 6.3 x 1.6 in)
Weight < 900 g (approx 2 lb)

Software included PicoScope 6 oscilloscope software with waveform database and guided tests. PicoDiagnostics software
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

For Korean software, please contact our Korean distributor VNP InterBiz

Additional hardware (supplied) USB cable, user manuals, software CD-ROM
PC requirements Microsoft Windows XP (SP3), Vista, Windows 7 or Windows 8.
PC connectivity SuperSpeed USB 3.0 (USB 2.0 compatible)
Power requirements Powered from USB ports
Safety approvals LVD compliant
EMC approvals Tested to meet EN61326-1:2006 and FCC Part 15 Subpart B
Environmental approvals RoHS and WEEE 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 2 years