DSP Lock-in Amplifier

 
7265 Dual Phase DSP Lock-in Amplifier
 
• 1m Hz to 250 kHz operation
• Direct digital demodulation without down-conversion
• Synchronous oscillator output for input offset reduction
• Dual Reference, Dual Harmonic and Virtual Reference modes
• Spectral display mode
 
 
 

Precision DSP Lock-in Amplifier

 
 
7124 Precision DSP Lock-in Amplifier
 
All analog front end
0.5 Hz to 150 kHz operating frequency range
Voltage and current mode inputs
10 µs to 100 ks output filter time constants
Dual Reference, Dual Harmonic and Virtual Reference operating modesUSB, RS232, and Ethernet computer interfaces
 

7225 Dual Phase DSP Lock-in Amplifier

 
7225 Dual Phase DSP Lock-in Amplifier
 
• 1m Hz to 120 kHz Operation
• 10 µs to 100 ks output time Constants
• Synchronous oscillator output for input offset reduction
• Harmonic measurements to 32f
• Chopped light measurements
• AC bridge measurements