PicoScope 5244A USB-oscilloscope

Pico Technology
PP867
  • Beskrivelse
  • Mere information
  • Specifikationer

PicoScope 5244A USB-oscilloscope with flexible resolution.

  • 2-hannel Oscilloscope 100 MHz bandwidth, 256 M/Sample buffer size.
  • 8 bits, 12 bits, 14 bits, 15 bits and 16 bits resolution.
  • Built-in function generator.
  • 2 x oscilloscope probes (x1/x10) and protective case for scope probes included.

High speed and high resolution. Breakthrough ADC technology switches from 8 to 16 bits in the same oscilloscope.

PicoScope: power, portability and versatility
Pico Technology continues to push the limits of PC oscilloscope design. For the first time in an oscilloscope, Pico Technology have used reconfigurable ADCs to offer a choice of 8-bit to 16-bit resolutions in a single product.

Flexible resolution
Most digital oscilloscopes gain their high sampling rates by interleaving multiple 8-bit ADCs. Despite careful design, the interleaving process introduces errors that always make the dynamic performance worse than the performance of the individual ADC cores.
 
The new PicoScope 5000 Series scopes have a significantly different architecture in which multiple high-resolution ADCs can be applied to the input channels in different time-interleaved and parallel combinations to boost either the sampling rate or the resolution.

In time-interleaved mode, the ADCs are interleaved to provide 1 GS/s at 8 bits (see diagram). Interleaving reduces the performance of the ADCs, but the resulting (60 dB SFDR) is still much better than oscilloscopes that interleave 8-bit ADCs. This mode can also provide 500 MS/s at 12 bits resolution.

In parallel mode, multiple ADCs are sampled in phase on each channel to increase the resolution and dynamic performance (see diagram). Sampling in parallel with multiple ADCs and combining the output reduces noise and also both the integral and differential nonlinearity.

Using parallel mode,  resolution is increased to 14 bits at 125 MS/s per channel (>70 dB SFDR). If only two channels are required then resolution can be increased to 15 bits, and in single-channel mode all the ADCs are combined to give a 16 bit mode at 62.5 MS/s. The software gives the choice of selecting the resolution or leaving the scope in “auto resolution” mode where the optimum resolution is used for the chosen settings.

High signal integrity
Most oscilloscopes are built down to a price; ours are built up to a specification.

Careful front-end design and shielding reduces noise, crosstalk and harmonic distortion. Over 20 years of high resolution oscilloscope design experience leads to improved pulse response and bandwidth flatness.

We are proud of the dynamic performance of our products and publish these specifications in detail. The result is simple: when you probe a circuit, you can trust in the waveform you see on the screen.

Portability
Pico Technology oscilloscopes are small, light and portable. In 2-channel mode the 5000 Series scopes can be powered from USB only, making them ideal for the engineer on the move. The external power supply is only needed when operating more than 2 channels. The 5000 Series oscilloscopes are suitable for field use in many applications, such as design, research, test, education, service and repair.

High bandwidth, high sampling rate
Most USB-powered oscilloscopes have real-time sampling rates of only 100 or 200 MS/s, but the PicoScope 5000 Series offers up to 1 GS/s, and a maximum bandwidth of 200 MHz. Equivalent time sampling (ETS) mode can be used to further boost the sampling rate to 10 GS/s for a more detailed view of repetitive signals.

Digital triggering
Most digital oscilloscopes sold today still use an analog trigger architecture based on comparators. This can cause time and amplitude errors that cannot always be calibrated out. The use of comparators often limits the trigger sensitivity at high bandwidths.

In 1991 we pioneered the use of fully digital triggering using the actual digitized data. This technique reduces trigger errors and allows our oscilloscopes to trigger on the smallest signals, even at the full bandwidth. Trigger levels and hysteresis can be set with high precision and resolution.

Digital triggering also reduces re-arm delay and this, combined with the segmented memory, allows the triggering and capture of events that happen in rapid sequence. At the fastest timebase you can use rapid triggering to collect 10,000 waveforms in under 20 milliseconds. Our mask limit testing function can then scan through these waveforms to highlight any failed waveforms for viewing in the waveform buffer.

Huge buffer memory
The PicoScope 5000 Series offers memory depths up to 512 million samples, more than any other oscilloscope in this price range.

Other oscilloscopes have high maximum sampling rates, but without deep memory they cannot sustain these rates on long timebases. Using its 512 MS buffer, the PicoScope 5444B can sample at 1 GS/s all the way down to 50 ms/ div (500 ms total capture time).

Managing all this data calls for some powerful tools. There’s a set of zoom buttons, plus an overview window that lets you zoom and reposition the display by simply dragging with the mouse. Zoom factors of several million are possible.

Each captured waveform is stored in a segmented buffer so you can rewind and review up to 10,000 previous waveforms. No longer will you see a glitch on the screen only for it to vanish before you stop the scope. A mask can be applied to hide waveforms that are not of interest.

Advanced triggers
As well as the standard range of triggers found on all oscilloscopes, the PicoScope 5000 Series offers an industry-leading set of advanced triggers including pulse width, windowed and dropout triggers to help you capture the data you need.

 Arbitrary waveform and function generator
All units have a built-in function generator (sine, square, triangle, DC level). As well as basic controls to set level, offset and frequency, more advanced controls allow you to sweep over a range of frequencies. Combined with the spectrum peak hold option this makes a powerful tool for testing amplifier and filter responses.

The PicoScope 5000 Series B models include additional built-in waveforms as well as an arbitrary waveform generator. Waveforms can be created or edited using the built-in AWG editor, imported from oscilloscope traces, or loaded from a spreadsheet.

Documents available for download:
 PicoScope 5000 Series data sheet



Oscilloscope - vertical
Number of channels 2 (PicoScope 5200 models)
4 (PicoScope 5400 models)
Bandwidth (–3 dB)* 60 MHz (PicoScope 5242A, 5242B, 5442A and 5442B models)
100 MHz (PicoScope 5243A, 5243B, 5443A and 5443B models)
200 MHz (PicoScope 5244A, 5244B, 5444A and 5444B models)
Hardware bandwidth limiter (−3 dB) 20 MHz, switchable
Rise time 
(calculated, 10% to 90%)		 5.8 ns (60 MHz models)
3.5 ns (100 MHz models)
1.8 ns (200 MHz models)
Input type BNCs on front panel
Resolution** 8, 12, 14, 15 and 16 bits selectable in hardware
Enhanced resolution Hardware resolution + 4 bits
Input sensitivity 2 mV/div to 4 V/div (10 vertical divisions)
Input ranges (full scale) ±10 mV to ±20 V full scale, in 11 ranges
Input coupling AC or DC, software-selectable
Input characteristics 1 MΩ ±1% || 13 pF, ±1 pF
DC accuracy
±50 mV to ±20 V ranges,
  ≥ 12-bit mode
±50 mV to ±20 V ranges,
  8-bit mode
±10 mV and ±20 mV ranges
±0.25% typical @ 25°C (±1% of full scale max @ 20 to 30°C)

±1% typical @ 25°C (±3% of full scale max @ 20 to 30°C)

±2% typical @ 25°C (±5% of full scale max @ 20 to 30°C)
Analog offset range (vertical position adjust) ±250 mV (10, 20, 50, 100, 200 mV ranges),
±2.5 V (500 mV, 1 V, 2 V ranges),
±20 V (5, 10, 20 V ranges)
Analogue offset control accuracy ±1% of offset setting
Overvoltage protection ±100 V (DC + AC peak)

* Note: in 16 bit mode, bandwidth is limited to 60 MHz
** Maximum effective resolution is limited on the lowest voltage ranges: ±10 mV = 8 bits • ±20 mV = 12 bits. All other ranges can use full resolution.

Oscilloscope - horizontal
Maximum sampling rate (real-time)
Any 1 channel
Any 2 channels
Any 3 channels
Four channels		 8-bit mode

1 GS/s
500 MS/s
250 MS/s
250 MS/s		 12-bit mode

500 MS/s
250 MS/s
125 MS/s
125 MS/s		 14-bit mode

125 MS/s
125 MS/s
125 MS/s
125 MS/s		 15-bit mode

125 MS/s
125 MS/s
–
–		 16-bit mode

62.5 MS/s
–
–
–
Maximum sampling rate (ETS mode for repetitive signals, 8-bit mode only) 2.5 GS/s (60 MHz models)
5 GS/s (100 MHz models)
10 GS/s (200 MHz models)
Maximum sampling rate (continuous streaming mode) 10 MS/s in PicoScope 6. >10 MS/s using supplied API (PC-dependent)
Timebase ranges 2 ns/div to 5000 s/div (60 MHz models)
1 ns/div to 5000 s/div (100 MHz models)
500 ps/div to 5000 s/div (200 MHz models)
Buffer memory** (8-bit mode) 16 MS to 512 MS: see Configure Your Scope
Buffer memory** (≥ 12-bit) Buffer memory for ≥ 12-bit is halved
Streaming buffer memory** (PicoScope) 100 MS
Maximum buffer segments (PicoScope) 10 000
Maximum waveforms per second 130 000 (PC-dependent)
Timebase accuracy (drift) ±50 ppm (±5 ppm/year) (60 MHz models)
±2 ppm (±1 ppm/year) (100 MHz and 200 MHz models)
Sample jitter 3 ps RMS, typical
ADC sampling Simultaneous
** Shared between active channels
Dynamic performance (typical; analog channels)
Crosstalk Better than 400:1 up to full bandwidth (equal voltage ranges)
Harmonic distortion 8-bit mode: > 60 dB at 100 kHz full scale input 
≥ 12-bit mode:> 70 dB at 100 kHz full scale input
SFDR 8 and 12-bit: > 60 dB at 100 kHz full scale input 
14 to 16-bit: > 70 dB at 100 kHz full-scale input
Noise (on 50 mV range) 8-bit mode 120 μV RMS 
12-bit mode 110 μV RMS 
14-bit mode 100 μV RMS 
15-bit mode 85 μV RMS 
16-bit mode 70 μV RMS
Bandwidth flatness (+0.3 dB, –3 dB) from DC to full bandwidth
Triggering (general)
Modes Free run, auto, repeat, single, ETS, rapid (segmented memory)
Maximum pre-trigger capture 100% of capture size
Maximum post-trigger capture 4 billion samples
Trigger rearm time < 2 μs on fastest timebase
Maximum trigger rate Up to 10 000 waveforms in a 20 ms burst
Triggering (analog inputs)
Trigger types Rising and falling edge with adjustable hysteresis, pulse width, dropout, window, delay, logic
Level All trigger levels, window levels and hysteresis values settable with 1 LSB resolution across input range
Sensitivity Digital triggering provides 1 LSB accuracy up to full bandwidth of scope
Trigger types (ETS mode) Rising, falling
Sensitivity (ETS mode) Typical 10 mV p-p at full bandwidth
Pulse width trigger Settable with 1 sample resolution from 1 sample (minimum 1 ns) up to 4 billion sample intervals
External trigger input
Trigger types Edge, pulse width, dropout, interval, logic
Input characteristics 1 MΩ ±1% || 13 pF ±1 pF
Input type Front panel BNC
Threshold range ±5 V, DC coupled
Bandwidth DC to full oscilloscope bandwidth (60, 100 or 200 MHz)
Overvoltage protection ±100 V (DC + AC peak)
Probe compensation output
Output characteristics 600 Ω
Output frequency 1 kHz
Output level 3 V pk-pk
Overvoltage protection 10 V
Function generator (fitted to all models)
Standard output signals Sine, square, triangle, DC voltage
Standard signal frequency DC to 20 MHz
Sweep modes Up, down, dual
Frequency accuracy ±50 ppm (±5 ppm/year) (60 MHz models)
±2 ppm (±1 ppm/year) (100 MHz and 200 MHz models)
Frequency resolution < 0.05 Hz
Voltage range ±2 V with ±1% DC accuracy
Amplitude and offset adjustment Adjustable in approx. 0.25 mV steps within overall ±2 V range
Amplitude flatness < 2 dB to 20 MHz, typical @ 50 Ω load
SFDR > 70 dB, 10 kHz full scale sine wave
Connector type BNC
Output characteristics 50 Ω output impedance
Overvoltage protection ±20 V
Arbitrary waveform generator (B models only)
Update rate 200 MS/s
Buffer size 16 kS (PicoScope 5242B and 5442B)
32 kS (PicoScope 5243B and 5443B)
48 kS (PicoScope 5244B and 5444B)
Resolution 14 bits (output step size approximately 0.25 mV)
Bandwidth > 20 MHz
Rise time (10% to 90%) < 10 ns
Spectrum analyzer
Frequency range DC to full oscilloscope bandwidth (60, 100 or 200MHz)
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 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
Oscilloscope AC RMS, true RMS, DC average, cycle time, frequency, duty cycle, falling rate, fall time, 
rising rate, rise time, high pulse width, low pulse width, maximum, minimum, peak to peak
Spectrum 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 I²C, I²S, SPI, RS-232/UART, CAN, LIN, 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
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
Display
Interpolation Linear or sin(x)/x
Persistence modes Digital color, analog intensity, fast, custom
Data export
Output file formats BMP, CSV, GIF, JPG, MATLAB 4, PDF, PNG, PicoScope data, PicoScope settings, TXT
Output functions Copy to clipboard, print
Environmental
Temperature range (operating) 0 °C to 40 °C
Temperature range (stated accuracy) 20 °C to 30 °C
Temperature range (storage) –20 °C to +60 °C
Humidity range (operating) 5% to 80% RH non-condensing
Humidity range (storage) 5% to 95% RH non-condensing
Physical properties
Dimensions 190 x 170 x 40 mm (including connectors)
Weight < 0.5 kg
Software
Windows software PicoScope for Windows
Software development kit (SDK)
Windows 7, 8 or 10 recommended (read more)
Mac OS X software PicoScope for Mac OS X (beta)
Software development kit (SDK)
Mac OS X version 10.9 or 10.10 recommended
Linux software PicoScope for Linux (beta)
Software development kit (SDK)
See Linux Software & Drivers for details of supported distributions
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
General
Additional hardware (supplied) USB cable, AC adaptor (4-channel models only), probes in probe case:
PS5242A/B & PS5442A/B - MI007
PS5243A/B & PS5443A/B - TA132
PS5244A/B & PS5444A/B - TA131
PC connectivity USB 2.0 hi-speed (USB 1.1 and USB 3.0 compatible; USB 1.1 not recommended)
Power requirements 1 A (2 channels) from 2 USB ports or 1.5 A at 5 V (up to 4 channels) from AC adaptor
Environment Dry locations only; up to 2000 m altitude
Safety approvals Designed to EN 61010-1:2010
EMC approvals Tested to EN61326-1:2006 and FCC Part 15 Subpart B
Environmental approvals RoHS and WEEE compliant