UHF-DIG Key Features
- Two signal inputs, 12-bit, 1.8 GSa/s
- 128 MSa memory per channel
- Dual-trace oscilloscope with FFT
- Segmented memory for up to 32'768 scope shots
- Fast continuous data streaming
- Hardware trigger engine with additional trigger inputs and outputs
- Full LabOne® integration on user interface and on API level
- Additional channels: Boxcar, Demodulators, Arithmetic Unit and PID data
UHF-DIG Upgrade and Compatibility
- Option upgradeable in the field
- Compatible with all other UHF options
UHF-DIG Functional Diagram
The UHF-DIG Digitizer is an option for the UHFLI Lock-in Amplifier that extends the capability of the standard oscilloscope with digitizer features.
With 12-bit physical resolution and 1.8 GSa/s sampling rate, the UHF-DIG is comparable to commercial dual-channel high-resolution standalone digitizers. The response of the analog input is flat at 600 MHz, hence it can sample inside the Nyquist zone at even higher frequency. Simultaneous visualization of the time domain (digitizer) and the frequency domain (lock-in) traces in the same window, high-speed data transfer to the computer and LabOne user interface integration are part of the state of the art usability features.
|Key features||UHFLI||UHFLI + UHF-DIG option|
|Scope sample rate||12-bit, 1.8 GSa/s||12-bit, 1.8 GSa/s|
|Scope sample memory||65 kSa||128 MSa|
|Segmented memory||no||up to 32'768 shots|
Benefit from the Speed
A high performance segmented memory manager supports the acquisition of up to 32'768 single shots per second. A small dead time between acquisition and the readiness for the next trigger reduces the likelihood of missing infrequent events. The UHF-DIG provides enough headroom to capture sufficient waveforms for many applications, with its configurable memory depth up to 128 MSa per channel.
Whereas connection of most commercial oscilloscopes to a host computer is often cumbersome, the UHF-DIG is readily integrated inside LabOne running on a web browser, hence it is takes no more than a few mouse clicks to store the captured waveforms to hard disk.
The sample transfer rate of 7 MSa/s to the host computer enables smooth transfer of a large numbers of shots or longtime continuous digitizing at a reduced sample rate.
Benefit from the Performance
A high performance analog front end allows switching between two different input impedances, AC/DC coupling and, most important of all, between one of 32 input ranges permitting a fine adjustment versus the signal of interest. The input range amplifier together with integrated shot averaging outperforms most digitizer cards which, furthermore, need to cope with heavy digital noise coming from the computer.
The result of an FFT calculated over 128 million samples results in a high-resolution spectrum up to a bandwidth of 900 MHz. The practical resolution can therefore be lower than 1 Hz for an appropriate sampling rate and depth, when calculated on an adequate computer. For higher resolutions one can use the LabOne Spectrum Analyzer tool.
Benefit from the Flexibility
The biggest advantage of combining a lock-in amplifier and a digitizer in one box comes from the mutual operation, triggering and synchronization. Users can observe events in the raw samples (oscilloscope) and define a condition according to which demodulated sample acquisition (lock-in amplifier) is started. Inversely users can define conditions on specific complex demodulated sample condition and trigger an acquisition on the digitizer.
All this is integrated within the LabOne user interface, the unique test and measurement interface combining time-domain and frequency-domain analysis tools. This sets a new standard in the digitizer market by providing sophisticated data analysis software.
|Digitizer operation modes|
|shot/triggered operation||yes, 1.8 GSa/s per channel|
|continuous operation||yes, 7 MSa/s transfer to user interface|
|dual signal acquisition||yes, simultaneous @ 1.8 GSa/s|
|input signals||Input 1, Input 2, Boxcar 1-2, Aux Input 1-2, Aux Output 1-4, Ref/Trigger 1-2, Demodulators, Arithmetic Unit and PID signals|
|maximum number of shots||up to 32,768|
|Sample transfer to computer|
|shot/triggered operation||14 MSa/s (USB, 1GbE)|
|continuous operation to user interface||7 MSa/s (USB, 1GbE)|
|continuous operation to API||7 MSa/s (USB)
14 MSa/s (1GbE)
|input impedance||50 Ω and 1 MΩ|
|input ranges||10 mV to 1.5 V in 32 steps|
|input flatness||±1 dB up to 600 MHz|
|SFDR1||56 dB (1.5 V, 50 Ω, 100.1 MHz, 1dB FS)|
|SNR2||48 dB (1.5 V, 50 Ω, 100.1 MHz, 1dB FS)|
|SINAD3||47 dB (1.5 V, 50 Ω, 100.1 MHz, 1dB FS)|
|ENOB4||7.6 (1.5 V, 50 Ω, 100.1 MHz, 1dB FS)|
|trigger modes||rising, falling and gated trigger|
|trigger sources||channel, external, oscillator, arithmetic, manual|
|trigger signals||Input 1, Input 2, Aux Input 1-2, Aux Output 1-4, Ref/Trigger 1-2|
|trigger delay (pre-trigger)||adjustable to 100% of shot length|
|trigger delay (post-trigger)||adjustable up to 120 s|
|trigger configuration||level and hysteresis|
|trigger output sources||scope armed, scope active, trigger active|
|trigger outputs||Ref/Trigger 1-2; Trigger Out 3-4 (TTL)|
|software trigger||scope trigger starts acquisition of demod samples|
|External triggers Ref/Trigger|
|trigger impedance||50 Ω and 1 kΩ|
|trigger input fullscale range (FS)||±2.5 V (50 Ω), and 5 V (1 kΩ)|
|trigger input amplitude||> 10% FS|
|trigger output amplitude||3.3 V TTL|
|Recommended computer configuration|
|Processor||Intel Xeon E5-1xxx, Quad core, >3.6 GHz|
|Memory (RAM)||32 GB|
|Storage||SSD HD or SSD RAID|
1 spurious free dynamic range in digitizer mode, no signal processing
2 signal to noise ratio in digitizer mode, no signal processing
3 signal to noise and distortions ratio in digitizer mode, no signal processing
4 effective number of bits in digitizer mode, no signal processing