Datasheet

PicoScope 4444 differential oscilloscope
1:1 differential probes
With most oscilloscopes, just connecting to the signal of interest can be very frustrating when one
of the connection points has to be grounded. With the PicoConnect 441 1:1 differential voltage
probe, the PicoScope 4444 high-resolution differential oscilloscope allows the freedom to connect
to and visualize signals that are off-limits to a grounded-input oscilloscope. Connect directly to
current-sensing resistors and differential signals, or across non-grounded components in a signal
path.
The PicoConnect 441 probe does not attenuate your signal and is well suited to numerous
electronics applications, as well as biomedical and other scientific research, as it allows high-speed
high-resolution measurements on signals between ±10 mV and ±50 V in the presence of common-
mode voltages and noise.
The PicoScope 4444: a new standard in differential measurement
With four true differential inputs, 12- to 14-bit resolution and wide differential and common-mode voltage ranges, the PicoScope 4444 and its accessories offer accurate and detailed measurement for a
multitude of applications.
The two key accessories are the new PicoConnect™ differential voltage probes. We have used 9-pin D-type connectors to create a true differential probe interface. These Pico D9 connectors also allow
the PicoScope software to automatically identify the probe and select the appropriate display settings.
The TA271 and TA299 adaptors allow you to use the PicoScope 4444 with traditional BNC-connected accessories.
1000 V CAT III differential probes
Testing and characterization of power supplies can present the oscilloscope user with many
challenges, such as hazardous voltages (often floating without reference to ground), feedback
circuitry with electrical isolation, and a wide range of signal levels. One wrong connection of a
ground lead and sparks can fly! Using the PicoConnect 442 1000 V CAT III differential voltage
probe with the PicoScope 4444, you can easily connect to and visualize the wide range of signals
that need to be characterized.
The PicoConnect 442 probe has a 25:1 attenuation ratio and is suitable for testing in a range of
applications, including distribution boards, circuit breakers, junction boxes, switches, fixed socket
outlets and industrial equipment such as permanently connected stationary motors.
Embedded system design and test Power supply design and test