• Syncronized lock-in measurements of up to 15 analog signals, each with multiple frequency analysis and DC separation
• All modules fully integrated and synchronized
• Simultaneous sampling ADCs and DACs - no multiplexing
• Integrated low-noise preamplifier stages with high input impedance - no need for additional preamplifiers
• Up to 3 sets of demodulators with independent frequencies for each input and output signal. Each demodulator set including synchronous DC, X, and Y
• ADCs seamlessly auto-ranging for sub-nV signals up to ±10 V range with 6+ digit resolution
• Up to 5 modules
• 19" rack mount
• 1000BASE-T Ethernet and USB 2.0 interface

• 2 differential analog inputs + 1 analog output per module
• up to 5 modules per system
• analog input:
  • Three different front-end amplifier options:
    • Noise level ~1.8 nV/√Hz at 1 GΩ amplifier impedance (typ. 15 nA input bias current)
    • Noise level ~4 nV/√Hz at 30 GΩ amplifier impedance (<1 nA input bias current)
    • Noise level ~18 nV/√Hz at ~5 TΩ (typ. 10 pA input bias current)
  • Full range ±10 V, pre-amplification 1 to 5000 in 12 steps
  • DC & AC-coupling, 0.2 Hz break frequency
  • 18-bit ADCs at 1 MSPS
• analog output:
  • 20-bit DAC at 1.33 MSPS
  • ±10 V, ±1 V and ±0.1 V full range
  • <10 nV/√Hz output noise at 0.1 V range
  • 50 mA output current
  • Integrated current measurement of output (full scales 50 mA/2 mA/100 µA/5 µA/250 nA)
  • Ground referenced & floating
• Trigger/phase marker input & output

• Synchronized lock-in measurements of up to 15 analog signals, each with multiple frequency analysis and DC separation
• Frequency range DC-500 kHz
• Set of 15 lock-ins on arbitrary inputs and/or harmonics
• Synchronous X, Y, DC, R and θ for each lock-in
• Phase resolution 64 bit, integral resolution 96 bit
• Option: 15 arbitrary harmonics
• Up to 2 additional sets of 15 lock-ins on independent frequencies and time constants

• Sine, square-wave, triangle, sawtooth
• Frequency, amplitude, offset & duty cycle programmatically controllable
• Demodulated signal output: X, Y, DC, R, θ
• Options
  • Composite and modulated waveforms
  • Real-time feedback options
  • Additional frequencies

• Waveform acquisition
• FFT
• Feedback loops

• Control: 1000BASE-T Ethernet and USB 2.0
• USB-host and SDHC card reader for data storage
• Integrated web server
• LabVIEW API
• 40 W power supply, 60 W option
• RJ45 (8P8C modular connectors) for analog signals

Accessories

• Breakout-box with Banana connectors
• Breakout-box with BNC connectors
• Fischer connector adapter box

Pricing information

• see price list

Research References

• G. Gervasoni, M. Carminati, and G. Ferrari, Review of Scientific Instruments 88, 104704 (2017).
• B. George, J. K. Roy, V. J. Kumar, and S. C. Mukhopadhyay, editors , Advanced Interfacing Techniques for Sensors (Springer International Publishing, 2017).
• K. Willa, Z. Diao, D. Campanini, U. Welp, R. Divan, M. Hudl, Z. Islam, W.-K. Kwok, and A. Rydh, Review of Scientific Instruments 88, 125108 (2017).
• N. Nandi, T. Scaffidi, P. Kushwaha, S. Khim, M. E. Barber, V. Sunko, F. Mazzola, P. D. C. King, H. Rosner, P. J. W. Moll, M. König, J. E. Moore, S. Hartnoll, and A. P. Mackenzie, Npj Quantum Materials 3, (2018).
• K. Willa, R. Willa, K. W. Song, G. D. Gu, J. A. Schneeloch, R. Zhong, A. E. Koshelev, W.-K. Kwok, and U. Welp, Physical Review B 98, (2018).
• C. Putzke, M. D. Bachmann, P. McGuinness, E. Zhakina, V. Sunko, M. Konczykowski, T. Oka, R. Moessner, A. Stern, M. König, S. Khim, A. P. Mackenzie, and P. J.W. Moll, arXiv:1902.07331 [cond-mat.mtrl-sci], (2020).
• K. Willa, M. P. Smylie, Y. Simsek, J.-K. Bao, D. Y. Chung, M. G. Kanatzidis, W.-K. Kwok, and U. Welp, Phys. Rev. B 101, 064508 (2020).