Zurich Instruments - Model UHFLI -600 MHz Lock-in Amplifier

• Laser spectroscopy: pump-probe, THz time-domain, ultrafast
• Scanning microscopy: high-speed AFM, SNOM, CARS-SRS
• Industrial production: failure analysis, laser voltage probing and imaging
• Quantum technologies: quantum computing, quantum communication, RF-reflectometry
• Sensing and actuation (MEMS)
• NMR

With multi-device synchronization (MDS) it is possible to operate multiple UHFLIs as a single multi-channel device:

• Operate all instruments from a single LabOne user interface and LabOne API.
• Lock in phase all instrument clocks and oscillators (stable phase relationship).
• Synchronize time stamps and sampling rates for automatic alignment of measurement data.

Lock-in operating modes
Internal reference mode: Single and dual lock-in
External reference mode: Single and dual lock-in
Auto reference mode: Single and dual lock-in
Triple-harmonic mode: 1 fundamental + 3 harmonics (simultaneous)
Multi-harmonic mode: 1 fundamental + 7 harmonics (simultaneous), requires UHF-MF option
Arbitrary frequency mode: 8 frequencies, requires UHF-MF option

UHF signal inputs
Frequency range: DC - 600 MHz
Input impedance: 50 Ω or 1 MΩ || 18 pF
Input voltage noise: 4 nV/√Hz above 100 kHz
Dynamic reserve: 100 dB
Input range (AC+DC): ±3.5 V
Input full range sensitivity: 1 nV to 1.5 V
A/D conversion: 12 bits, 1.8 GSa/s

UHF signal outputs
Frequency range: DC - 600 MHz
Output ranges: ±150 mV, ±1.5 V (high-impedance load)
-12.5 dBm, 7.5 dBm (50 Ω load)
D/A conversion: 14 bits, 1.8 GSa/s
Reference and nanosecond triggers
Frequency range: 10 Hz to 600 MHz (external reference)
Connectors: 2 bidirectional, 2 output, 2 input
Reference frequency resolution: 6 µHz
Reference phase angle resolution: 1.0 µ°

Demodulators
Frequency range: 1 mHz to 600 MHz
Number of demodulators: 8 dual-phase
Output sample rate on LAN: 2 MSa/s (total all demodulators), 64-bit full range
Output sample rate on USB: 100 kSa/s (total all demodulators), 64-bit full range
Output sample rate on Aux outputs: 28 MSa/s (for each auxiliary output), 16-bit
Filter time constant: 30 ns - 76 s
Filter bandwidth: 628 µHz to 5 MHz
Filter slope: 6, 12, 18, 24, 30, 36, 42, 48 dB/Oct

Scope
Input channels: Signal inputs, trigger inputs, auxiliary inputs, demodulator oscillator phase, demodulator X/Y/R/Theta, PID, boxcar, AU; certain signals only if options installed
Scope modes: Time domain, frequency domain (FFT)
Number of display channels: 1; 2 requires UHF-DIG option
Trigger channels: Signal inputs, signal outputs, oscillator phases, DIOs

Trigger modes: Edge
Sampling rates: 28 kSa/s to 1.8 GSa/s
Vertical resolution: 12 bits
Maximum number of samples per shot: 64 kSa; 128 MSa, requires UHF-DIG option
Bandwidth limit mode, vertical resolution increase: Sample decimation, averaging
Cursor math: Location, area, wave, peak, tracking, histogram

Spectrum Analyzer
Center frequency range: 0 - 600 MHz
Spectrum modes: FFT(X+iY), FFT(R), FFT(Θ), FFT(f) and FFT((dΘ/dt)/2π)
Statistical options: Amplitude, spectral density, power
Averaging modes: None, exponential moving average
Maximum number of samples per spectrum: 8.4 MSa
Maximum span: 800 kHz
Window functions: Rectangular, Hann, Hamming, Blackman Harris
Cursor math: Location, area, wave, peak, tracking, histogram

Sweeper
Scan parameters: Oscillator frequency, demodulator phase shift, auxiliary offset, signal output amplitudes, signal output offset, PID setpoint, boxcar delay and time; certain parameters only if options installed
Parameter sweep ranges: Full range, linear and logarithmic
Parameter sweep resolution: Arbitrary, defined by start/stop value and number of sweep points
Display parameters: Demodulator output (X, Y, R, Θ, f), auxiliary input
Display options: Single plot, dual plot (e.g., Bode plot), multi-trace
Statistical options: Amplitude, spectral density, power
Preset measurement modes: Parameter sweep, noise amplitude measurement, frequency response analyzer, 3-omega-sweep

Auxiliary signals
High-speed outputs: 4 channels, ±10 V, R, Θ, X, Y, or user defined
D/A converter: 16 bits, 28 MSa/s
D/A analog bandwidth: 7 MHz
High-speed inputs: 2 channels, ±10 V
A/D converter: 16 bits, 400 kSa/s
A/D analog bandwidth: 100 kHz

Connectivity and others
Host connection: LAN / Ethernet, 1 Gbit/s
USB 2.0 high-speed, 480 Mbit/s
Pre-amplifier control bus: 2 ZCtrl (RJ45 connectors) proprietary peripheral interface
Digital I/O: 32 bits, 50 MHz, general purpose
Clock: 10 MHz, input and output, ultra-high stable ovenized oscillator (OCXO)
0.5 ppm deviation (0.00005 ppm with UHF-RUB option)

General
Dimensions: 45 x 35 x 10 cm
17.7 x 13.6 x 3.9 inch, suited for 19 inch rack
Weight: 6.4 kg
Power supply AC line: 100-240 V (±10%), 50/60 Hz
Operating temperature: +5 °C to +40 °C
Operating environment: IEC61010, indoor location, installation category II, pollution degree 2
Operating altitude: Up to 2000 m
Signal connectors: BNC on front panel, SMA on back panel
PC operating systems: Windows 7, Windows 8, Windows 10, Linux