7270 DSP Lock-in Amplifier

    • a lock-in amplifier is used to measure the amplitude or phase of a signal at a known frequency in the presence of noise that often significantly exceeds the measured component
    • digital demodulators implemented using DSP technology are immune to errors caused by DC drift and offset, while offering additional benefits
    • the device is suitable for a wide range of applications in optics, electrochemistry, materials research, physics, and electrical engineering
    • the model 7270 offers a compact laboratory design with a color display and comprehensive options for selecting the most suitable operating mode
    • warranty: 2 years
    Ametek Scientific Instruments
    Other parameters
    Price on request
    Cat. no: 7270.w
    availability on request

    No item matches your selection.

    Parameters and specifications

    input modes A, B, differential (A-B)
    frequency range 1 mHz – 250 kHz
    FS (Full-Scale) sensitivities 1-2-5 sequence in the range from 2 nV / 2 fA to 1 V / 1 µA (10 nA)
    input impedance FET: 10 MΩ // 25 pF, AC or DC coupling
    bipolar: 10 kΩ // 25 pF, DC coupling
    maximum input voltage ±12.0 V
    voltage noise 5 nV/√Hz at 1 kHz
    CMRR > 100 dB at 1 kHz
    THD voltage distortion -90 dB
    • 1 MSa/s sampling rate
    • multiple filtering stages, including a fast FIR filter implemented in FPGA
    • internal or external reference signal
    • auxiliary analog and digital inputs, as well as DAC outputs
    • 100k-point internal memory for recording the selected measurement output or auxiliary signal
    • voltage or current input modes
    • the instrument can serve in various applications as:
      • AC signal reconstruction device
      • transient recorder
      • vector voltmeter
      • DSP oscillator
      • phase meter
      • frequency meter
      • spectrum analyzer
      • noise measurement instrument
    • the main display screen allows configuration of custom controls and displays
    • harmonic measurement up to 127 × F
    • spectrum display capability – spectral power density of the input signal and noise
    • additional modes available, including dual harmonic, dual reference, virtual reference, and “tandem” demodulation
    • integrated DDS sine oscillator also available for experiment excitation (OSC OUT output) with sweep capability
    • VCO control (modulation) of the internal oscillator via an external signal
    • USB, Ethernet, and RS232 communication interfaces
    • extensive software support including LabVIEW drivers

    Downloads and links

    Need some advice?

    Call us on +420 325 610 123 and ask for a specialist in this field.