Pico Technology PicoScope 4444 oscilloscope with differential inputs

Brief description

The PicoScope 4444 USB oscilloscope from Pico Technology (United Kingdom) has 4 differential analog channels, a bandwidth of 20 MHz, a sampling rate of 400 MS/s and a record length of 256 M points. The hardware resolution of these oscilloscopes can be changed in the range from 12 to 14 bits.

The PicoScope 4444 oscilloscope is connected to a computer via a USB 3.0 interface, and its operation is controlled using the powerful PicoScope 7 software, which is included in the delivery set. The PicoScope 4444 differential oscilloscope with several probes is significantly cheaper than a classic oscilloscope equipped with dedicated differential probes. A full description of all characteristics can be downloaded below on this page in the Documentation section.

Main features

20 MHz, 400 MS/s, 4 differential channels (model 4444).
If two or more channels are active, the sample rate is reduced (see documentation).
Vertical resolution: 12-14 bits (hardware). Sensitivity: from 2 mV/div to 10 V/div.
Record length (total for all channels): 256 M points.
Automatic detection of probe types. Probe power supply from the oscilloscope.
Voltage probes: differential up to ±50 V (model 441), differential galvanically isolated up to ±1 000 V (model 442).
Current probes: current clamps and loops (several models from 30 A to 3 000 A).
Decoding and analysis of 40 serial protocols: I2C, I2S, SPI, CAN, LIN, UART, Ethernet, USB and others.
37 automatic measurements, FFT analysis, mathematical signal processing, statistics.
Powerful PicoScope 7 software included.
Interfaces: USB3 (connection to USB2 is possible using a special cable).
Weight: 0.5 kg. Dimensions: 190 × 40 × 170 mm. Operating temperature: from 0°С to +45°С.

With four fully differential inputs, 12 or 14-bit hardware resolution, and a wide differential and common-mode input voltage range, the PicoScope 4444 oscilloscope and its probes provide accurate measurements with minimal noise. The oscilloscope features 9-pin D-type connectors that provide a true differential interface for probes and allow the PicoScope 7 software to automatically detect the connected probe model and select the appropriate settings.

For PicoScope 4444 are available five current probe models (30 A to 3 000 A) and two voltage probe models: the PicoConnect 441 (±10 mV to ±50 V, 1:1, 15 MHz) and the PicoConnect 442 (±1 000 В CAT III, 25:1, 10 MHz). This photo shows a PicoScope 4444 oscilloscope with PicoConnect 442 probe measuring the signal inside a computer power supply.