PicoScope 4225A and 4425A Series 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 4225A |
PicoScope 4425A |
| Channels |
2 |
4 |
| Bandwidth |
20 MHz |
| Resolution |
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 Windows 10 recommended
Powered from PC USB port (USB 3.0 / 3.1 recommended; USB 2.0 compatible). |
Detailed specifications
Some of our customers use our automotive oscilloscopes for vehicle design and development and other non-diagnostic purposes. For these customers we have provided detailed technical specifications.
| Oscilloscope specifications (vertical) |
| Model |
PicoScope 4225A |
PicoScope 4425A |
| 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 |
| Input 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 single-ended BNC connector |
| Input coupling |
Software selectable AC/DC |
| Overvoltage protection |
±250 V (DC + AC peak) |
| Oscilloscope — 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 |
| Triggers |
| 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, CAN FD, FlexRay, LIN, I²C, UART/RS-232, SPI, I²S |
| 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 |
| Alarms |
| 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, .mat (MATLAB 4), .pdf, .png, .psdata (PicoScope data), .pssettings (PicoScope settings), .txt |
| Output functions |
Copy to clipboard, print |
| Environmental |
Operating environment
Temperature range
Humidity |
0 °C to 40 °C (15 °C to 30 °C for quoted accuracy)
5% to 80% RH, non-condensing |
Storage environment
Temperature range
Humidity |
–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 |
| 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 Autotech
| General |
| Additional hardware (supplied) |
USB cable, user manuals |
| PC requirements |
Desktop or laptop running Windows 10 recommended
(read more) |
| PC connectivity |
Powered from PC USB port (USB 3.0 / 3.1 recommended, USB 2.0 compatible). |
| Power requirements |
Powered from USB ports |
| Safety approvals |
LVD compliant |
| EMC approvals |
Tested to meet EN 61326-1:2006 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 |
When operated in the presence of high EM fields, interference in the form of additional measurement noise may be experienced. This is no cause for concern but the user should endeavor to minimize any adverse effects so caused through careful positioning when in use and/or not operating close to potential sources of interference such as mobile telephone transmitters, antenna masts, etc.
