Lock-in Amplifier

Enhance the sensitivity and accuracy of your measurements with the Moku Lock-in Amplifier. Offering a bandwidth up to 600 MHz, with an excellent dynamic reserve, an easy-to-use interface, and a leading cost-per-channel in all classes, it’s the perfect blend of performance and convenience. Elevate your research capabilities with an instrument that adapts to the evolving demands of cutting-edge scientific experiments.
Download datasheet

Learn more about the Moku Lock-in Amplifier

Traditional lock-in amplifiers can come with a steep learning curve. Moku simplifies your control scheme with embedded instruments to accelerate feedback and data collection. Watch the video to learn more.

Lock-in Amplifier's dual-phase demodulator with cascaded, single-pole lowpass filters

A versatile digital Lock-in Amplifier for demanding applications

With 600 MHz input bandwidth, >120 dB of dynamic reserve, and up to four input channels, the Moku Lock-in Amplifier offers unmatched performance and an industry-leading price per channel. A wealth of options for reference sources, filters, and PID control, enable you to configure it to your specific experiment.

Dual-phase demodulation for enhanced measurement accuracy

The Moku Lock-in Amplifier features a dual-phase demodulator with cascaded, single-pole lowpass filters to attenuate the second harmonic and suppress noise in each quadrature. View the demodulated in-phase and quadrature signals prior to the lowpass filters using the integrated Oscilloscope.

mokupro lock-in amplifier integrated PID controller oscilloscope data logger

Work more efficiently with included embedded instruments

Monitor up to four signals at a time using the Moku Lock-in Amplifier’s integrated four-channel, 1.25 GSa/s Oscilloscope, and continuously log data at up to 10 MSa/s using the built-in Data Logger. Additionally, the integrated PID Controller provides real-time control over gain profiles with configurable saturation.

Moku Lock-in Amplifier for visionOS

Measure more, with a streamlined user interface

Wirelessly configure and monitor your setup’s performance with the intuitive software. Adjust all settings of the Moku Lock-in Amplifier and other instruments from your desktop, then move around the lab with Moku for iPad or Apple Vision Pro to easily adjust components and control instruments, fully untethered from your lab bench.

Lock-in amplifier's LabVIEW boxed

Integrate with your preferred software

Moku features API support for Python, MATLAB, and LabVIEW, allowing for straightforward integration of Moku with your existing technology stack.

Engineered for demanding applications

Use the Moku Lock-in Amplifier to accelerate development timelines with speed and flexibility unmatched by any other instrument in its class.

Optical and RF communications

Laser frequency
stabilization

Optical microscopy

Magnetic
sensing

Phase-locked loops

Integrates seamlessly with your tech stack

Specifications and
technical documents

The Moku Lock-in Amplifier is available on all Moku platforms. Compare the specifications below to choose the right device for your application.

mokupro
mokulab

Moku:Pro

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Moku:Lab

Learn more

Moku:Go

Learn more

Technical specifications

Channels

4

2

2

Demodulation frequency

1 mHz to 600 MHz

1 mHz to 200 MHz

1 mHz to 30 MHz

Dual-phase demodulation

X/Y or R/θ

X/Y or R/θ

X/Y or R/θ

Demodulation modes

Internal, external (direct local oscillator input or phase-locked loop with frequency multiplier from 0.125x to 250x), with the option to bypass the mixer stage

Internal, external (direct local oscillator input or phase-locked loop with frequency multiplier from 0.125x to 250x), with the option to bypass the mixer stage

Internal, external (direct local oscillator input or phase-locked loop with frequency multiplier from 0.125x to 250x), with the option to bypass the mixer stage

Dynamic reserve

> 120 dB

> 120 dB

> 100 dB

Filter time constant

From 12.8 ns to 0.215 s

From 32 ns to 0.537 s

From 128 ns to 2.15 s

Input impedance

50 Ω / 1 MΩ

50 Ω / 1 MΩ

1 MΩ

Output gain range

-80 to +160 dB

-80 to +160 dB

-80 to +160 dB

Local oscillator output

Up to 600 MHz with variable amplitude

Up to 200 MHz with variable amplitude

Up to 20 MHz with variable amplitude

Documentation

Datasheets

Moku:Pro Lock-in Amplifier Datasheet
Moku:Pro Hardware Datasheet

Moku:Lab Lock-in Amplifier Datasheet
Moku:Lab Hardware Datasheet

Moku:Go Lock-in Amplifier Datasheet
Moku:Go Hardware Datasheet

User manuals

Moku:Pro Lock-in Amplifier User Manual

Moku:Lab Lock-in Amplifier User Manual

Moku:Go Lock-in Amplifier User Manual

Specs

Moku:Pro Lock-in Amplifier Specs

Moku:Lab Lock-in Amplifier Specs

Moku:Go Lock-in Amplifier Specs

mokupro

Moku:Pro

Lock-In Amplifier

Technical specifications

Channels
4

Demodulation frequency
1 mHz to 600 MHz

Dual-phase demodulation
X/Y or R/θ

Demodulation modes
Internal, external (direct local oscillator input or phase-
locked loop with frequency multiplier from 0.125x to
250x), with the option to bypass the mixer stage

Dynamic reserve
>120 dB

Filter time constant
From 12.8 ns to 0.215 s

Input impedance
50 Ω / 1 MΩ

Output gain range
-80 to +160 dB

Local oscillator output
Up to 200 MHz with variable amplitude

Documentation

Datasheets
Moku:Pro Lock-in Amplifier Datasheet
Moku:Pro Hardware Datasheet

User manuals
Moku:Pro Lock-in Amplifier User Manual

Specs
Moku:Pro Lock-in Amplifier Specs

mokulab

Moku:Lab

Lock-In Amplifier

Technical specifications

Channels
2

Demodulation frequency
1 mHz to 200 MHz

Dual-phase demodulation
X/Y or R/θ

Demodulation modes
Internal, external (direct local oscillator input or phase-
locked loop with frequency multiplier from 0.125x to
250x), with the option to bypass the mixer stage

Dynamic reserve
>120 dB

Filter time constant
From 32 ns to 0.537 s

Input impedance
50 Ω / 1 MΩ

Output gain range
-80 to +160 dB

Local oscillator output
Up to 200 MHz with variable amplitude

Documentation

Datasheets
Moku:Lab Lock-in Amplifier Datasheet
Moku:Lab Hardware Datasheet

User manuals
Moku:Lab Lock-in Amplifier User Manual

Specs
Moku:Lab Lock-in Amplifier Specs

Moku:Go

Lock-In Amplifier

Technical specifications

Channels
2

Demodulation frequency
1 mHz to 20 MHz

Dual-phase demodulation
X/Y or R/θ

Demodulation modes
Internal, external (direct local oscillator input or phase-
locked loop with frequency multiplier from 0.125x to
250x), with the option to bypass the mixer stage

Dynamic reserve
>100 dB

Filter time constant
From 128 ns to 2.15 s

Input impedance
1 MΩ

Output gain range
-80 to +160 dB

Local oscillator output
Up to 20 MHz with variable amplitude

Documentation

Datasheets
Moku:Go Lock-in Amplifier Datasheet
Moku:Go Hardware Datasheet

User manuals
Moku:Go Lock-in Amplifier User Manual