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Digital Lock-in Amplifier | LIA001M

CIQTEK LIA001M is a high-performance lock-in amplifier that combines various functions such as lock-in amplification, virtual oscilloscope analysis, parameter scanning, demodulation plotting, and data analysis.

Based on advanced digital signal processing technology and hardware design, it can accurately and quickly detect weak signals drowned in strong noise.

It is one of the important tools for modern weak signal detection and analysis and can be used in various scientific research and industrial applications.

DC ~ 1 MHz demodulation frequency

Current and differential voltage input

100 MSa/s, 16 bit ADC sampling

Full-scale sensitivity from 1 nV to 3 V

Better than 3.1 nV/√Hz noise density

More than 120 dB dynamic reserve

Support Sine and TTL reference signal input and output

3 types of phase-locked demodulation modes: internal reference, external reference, and dual reference

Support 1/1023~1023th harmonic detection function

Optical measurements, spectroscopy

Impedance measurement

Magnetic measurement

Biomedical

Semiconductor materials and devices

Signal Inputs (Voltage and Current)

Voltage Channel	1 (single-ended and differential)
Current Channel	1
Frequency Range	200 uHz ~ 1 MHz
Voltage Input Range	±1 mV,±3 mV,±10 mV,±30 mV, ±100 mV,±300 mV,±1 V,±3 V
Voltage Input Noise	3.1 nV/√Hz@1 kHz
Full-scale Input Sensitivity (Voltage Input)	1 nV-3 V
Current Input Range	±1 nA，±10 nA，±100 nA，±1 µA， ±10 µA，±100 µA，±1 mA，±10 mA
Current Input Noise	20 fA/√Hz@100 Hz
Full-scale Input Sensitivity (Current Input)	10 fA ~ 10 mA
Dynamic Reserve	≥120 dB

Reference Output

Channel	1
Frequency Range	200 uHz ~ 1 MHz
Output Voltage Range	±10 mV,±100 mV,±1 V,±10 V
Signal Type	Sine/TTL
Output Phase Range	±180°
Maximum Output Current	100 mA

Reference Input (Can be set to 2 auxiliary inputs)

Channels	2
Frequency Range	DC ~ 1 MHz
Signal Type	Sine/TTL
Input Voltage Range	±10 V

Demodulator Reference

Number of Demodulators	1 dual-phase demodulators
Reference Mode Selection	Internal reference, external reference, dual reference
Harmonic Detection	Support (n/m)* F Harmonic measurement, (n/m)* F≤1 MHz Range of n (harmonics): 1 ~ 1023 Range of m (harmonics): 1 ~ 1023
Time Constant	126 ns ~ 250 s
Filter Slope (dB/oct)	6, 12, 18, 24, 30, 36, 42, 48
Other Filter Functions	Sinc filter
Phase Resolution	10 udeg
Frequency Resolution	1 μHz

Auxiliary Output

Channels	4
Output Voltage Range	±10 V
Maximum Output Current	10 mA

Auxiliary Input

Channels	2
Input Voltage Range	±10 V

Communication

Communication Interface

LAN/1 Gbps

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