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home > Products > Measurement Instruments > Lock-in Amplifier/Preamplifier > Lock-in Amplifier

Lock-in Amplifier/Preamplifier
Lock-in Amplifier
LI 5640
LI 5660
Detecting and measuring AC signal's amplitude or phase buried in noise, as high sensitive AC Voltmeter with noise immunity.
This equipment is used by many customers like at the fields of physics and science including spectroscopic analysis.

Model Description
LI 5660 Wideband Digital Lock-in Amplifier 5 Hz to 11 MHz,
dual phase, dual frequency
LI 5655 5 Hz to 3 MHz,
dual phase, dual frequency
LI 5650 Digital Lock-in Amplifier 0.1 mHz to 250 kHz,
dual phase, dual frequency
LI 5645 0.1 mHz to 250 kHz,
dual phase, single frequency
LI 5640 Multifunction Digital Lock-in Amplifier
(Multifunction type)
1 mHz to 100 kHz
Phase stability : 0.01°/°C, Gain stability : ±100ppm/°C
Time Constant (at minimum) : 10 µs, Built-in oscillator
LI 5630 Digital Lock-in Amplifier
(Economical type)
5610B 2-phase Lock-in Amplifier 0.5 Hz to 200 kHz, 100 nV full-scale
Two phases, Auto setting function, Built in oscillator
LI-575 Synchrotrack
Lock-in Amplifier
0.5 Hz to 200 kHz, 100 nV full-scale,
Completely free from harmonic influences
5571 Lock-in Amplifier Frequency Extender A frequency converter, which can extend upper limited frequency of Lock-in Amplifier up to max. 5 MHz.
⋅ Input frequency: 10 kHz to 5 MHz
⋅ Output Frequency: 2 kHz / 20 kHz

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