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496 DSP Lock-In Amplifier Module

  • 496 modular DSP lock-in amplifier unit
  • 496 dual-channel lock-in amplifier module in 417 mainframe

This free running and fully automated amplifier measures both channels simultaneously whilst a display reports magnitude, phase, signal to noise ratio and frequency. Data acquisition is fully automated over the USB interface.

Core benefits


  • Double width module housed within the 417/417T unit
  • Front panel or USB 2.0 control
  • Dual input for use with multiple detector configurations
  • Digital signal processing
  • Displays magnitude, phase, frequency and SNR


Channel 1 inputVoltage input to lock-in amplifier
Channel 2 inputVoltage input to lock-in amplifier
Input Range0 to 10V
Input Impedance100MΩ/25pf, pseudo differential
Reference Input0- 5V
Frequency Range10Hz - 2kHz
Dynamic ReserveNot applicable - digital demodulation
Gain RangesBinary gain, 2-6 to 214
Gain Accuracy±0.15%
Gain Stability 200ppm/°C
Output Stability5ppm/°C to 500ppm/°C depending on sensitivity
Time Constant10ms to 10s
ADC Resolution16 bit
ADC Speed52 kHz

Interface and Mechanical

InterfaceUSB via 417/417T Unit (I2C)
ControlFront panel/ USB
Front Panel Controlled FeaturesInput select, gain range select, integration time select
DimensionsDual width module, 3U high
Connector BNC
DisplayLCD display of signal, frequency, phase and SNR

Ordering Information

S400_496496 DSP Lock-In Amplifier Module

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