Pico Communications 2000 Series - Manual (Page 9)

Product information 7
Copyright 2005-6 Pico Technology Limited. All rights reserved. PS2000044-1.1
2.3 Specifications
PicoScope 2202
Vertical Resolution 8 bits
Analog Bandwidth 2 MHz
Maximum Sampling Rate
Single-channel
Dual-channel 20 MS/s
10 MS/s per channel
Buffer Size
Single-channel
Dual-channel 32 ksamples
16 ksamples per channel
Inputs 2 channels with BNC sockets
1 M W impedance
AC/DC coupling
20 pF input capacitance
Voltage Ranges ± 50 mV to ± 20 V ranges in 9 ranges
Accuracy 3 % (voltage)
100 ppm (time)
Operating Environment
Temperature range
Humidity
0°C to 70°C
(20°C to 30°C for quoted accuracy)
25% to 75% RH
Overload Protection ± 100 V
PC Connection USB 2.0
Compatible with USB 1.1
Power Supply From USB port: 4.6 to 5.25 V; 500 mA
External power supply is not required
Maximum Dimensions 140 mm x 190 mm x 45 mm
Compliance CE standard ; FCC standard
2.4 Sampling modes
PicoScope 2000 series PC Oscilloscopes can run in various sampling modes. At high
sampling rates, the oscilloscope collects data much faster than a PC can read it. To
compensate for this, the oscilloscope stores a block of data in an internal memory buffer,
delaying transfer to the PC until a preset number of data points has been sampled. This
is called block mode. At very low sampling rates, you may want to switch to streaming
mode. This allows accurately timed data to be transferred back to the PC in short blocks,
without gaps. Real time continuous mode is also provided for use at low sampling
rates, when immediate data transfer without gaps is required but timing accuracy is not
critical.