Dataman 774 150 MHz USB Isolated Oscilloscope

General

• USB 2.0/1.1 compatible interface
• Dual channel with external trigger
• 150 MHz bandwidth
• Isolated measuring inputs
• Deflection factor: 10 mV/div to 5 V/div in 1-2-5 sequence
• Maximum real time sampling rate: 100 MS/s
• Maximum equivalent sampling rate: 10 GS/s
• Large internal sample buffer: 1,000,000 per channel
• Powered from USB (no batteries or power adapter required)

Vertical Deflection System

• No. of horizontal divisions: 8
• No. of samples per division: 32
• Deflection factor range: 10mV/div to 5V/div in 1-2-5 sequence
• Accuracy: +- 2% of current value + 1 pixel
• Resolution: 8 bits (0,39%)
• Frequency response (-3dB): DC: 0-150 MHz, AC: 1.2 Hz-150 MHz
• Step response rise time: max. 2.4 ns
• Channel isolation: min. –60 dB
• Resistance: 1 MOhm +5 %, -2 %
• Input resistance inaccuracy adjustment: Digital for absolute accuracy +- 2% of current voltage + 1 pixel
• Capacitance: 30 pF +- 2pF
• Zero setting accuracy: +- 2% of the screen
• Maximum input voltage: +- 200V at 100 kHz or less

Triggering

• System type: Dual level
• Trigger source for primary level: selectable Channel A, Channel B or external trigger input
• Trigger source for secondary level: selectable Channel A, Channel B or external trigger input
• Threshold setting: Channel A and Channel B on the whole display range. External fixed on about 1.5V
• Slope selection: Leading or trailing edge independently on each source
• Minimum trigger pulse period: 5 ns
• Minimum trigger pulse length: 2.5 ns
• Maximum voltage on external trigger input: -10V to +13V at 20 kHz or less
• Adjustments: Digital filter with ability of setting the valid pulse length up to 131072*Ts for each level and counter of valid triggering events settable from 1 to 32768 for each level. HOLD-OFF settable up to 1048576*Ts with selectable AUTO mode, to sample proper amount of data before trigger. (Ts – actual real time sampling period)

Data Acquisition System

• No. of horizontal divisions: 10
• No. of samples per division: 50
• Mode of operation: Sampling before and after trigger with continual selection of the trigger position
• Record length: Settable from 1024 to 1048576 (1 M) samples for each channel
• Time base range in 1:1 mode: 5 ns/d to 100 ms/d in 1-2-5 sequence
• Time base range using different ZOOM modes: 625 ps/d to 204.8 s/d
• Time base accuracy: 0.01 % to 100 ns/d, 0.5 % for 50 ns/d to 5 ns/d
• Real time sampling frequency: 1 kHz to 100 MHz
• Equivalent sampling frequency: 1 kHz to 10 GHz
• Display range with respect to trigger event: 1048576 samples before and 1048576 samples after trig. event in length of 1048576 samples

Probe Compensation Generator

• Output connector: BNC, together with External trigger input
• Output impedance: 1 kOhm to parallel with 10nF and approx. 50 Ohm serial
• Output waveform: Pulse with 1:1 duty cycle
• Frequency: 1465 Hz
• Output voltage (no load): 3.3V +- 5%

Isolation Characteristics

• Impedance between measuring and computer ground: > 2GOhm in parallel with approx. 150 pF
• Maximum isolation voltage: 500 Vp
• Maximum voltage * frequency factor (V*Hz): 50000