Digitimer offers a range of amplifiers designed specifically for use in electroencephalography (EEG), electromyography (EMG) or evoked potential (EP) studies in human non-invasive brain stimulation research environments.
Digitimer EMG Amplifiers
Digitimer D440 Isolated EMG Amplifier
The Digitimer D440 isolated EMG amplifier is a portable, standalone, low-noise solution for human EMG studies. The Digitimer D440 features a wide amplification range of x100 to x20k.
The D440's gain, filter, and mode settings for individual channels can be adjusted using the Digitimer 'virtual front panel' software, or other software via a component object model (COM) interface. The D440 is available in two different configurations - the D440-2 (a two-channel isolated amplifier), and the D440-4 (a four-channel isolated amplifier).
Digitimer D360 8-Channel Patient Amplifier
The Digitimer D360-8 Channel Patient Amplifier is a computer-controller 8-channel, patient-isolated AC-coupled biological amplifier and analogue filter system.
The system is CE-marked according to the European Medical Device Directive and is intended for human clinical and research applications for electroencephalography (EEG), electromyography (EMG) and evoked-potential (EP).
The D360 system offers versatile high and low-pass filter options, as well as a maximum gain of x3,000,000. The D360 system comprises a main amplifier unit, a remote active headbox and dedicated, Windows-compatible control software.
Digitimer D360R Multi-Channel Isolated Research Amplifier/Filter
The new Digitimer D360R multi-channel isolated research amplifier is intended for human research exploring electroencephalography (EEG), electromyography (EMG), or evoked potential (EP) studies.
The Digitimer D360R builds upon the design of the aforementioned 8-channel D360 Isolated Patient Amplifier, with the D360R-4 being the first iteration of this new family of amplifiers offering a compact, cost-effective solution for four-channel research. Future systems offering two-channel (D360R-2) and eight-channel (D360R-8) variants are currently in development by Digitimer.
Compatible with QTMS Transcranial Magnetic Stimulation Software
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AC AND DC OPERATING MODES
The Digitimer D440 is designed to operate in AC and DC differential modes and includes a manually activated or externally gated de-block function, which can be useful for minimising the effects of magnetic stimulation artifacts.
COMPATIBLE WITH STANDARD ELECTRODE CONNECTORS
Electrodes can be connected to the front panel of the Digitimer D440 via 1.5mm DIN 42 802 or standard 5-pole DIN connectors.
THRESHOLD TRACKING FUNCTIONALITY
The Digitimer range of EMG amplifiers can be integrated with the QtracW Threshold Tracking Software, for flexible, stimulus-response data acquisition with averaging, threshold-tracking and latency-tracking facilities.
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Digitimer D360R Specifications |
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| Headstage | |
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Input Impedance |
1GΩ |
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Max. Analogue Channels |
4 |
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CMRR |
≥90dB |
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Gain |
x100 - x3,000,000 (10mV/V-0.33µv/V) 80 gains from x100 to x3,000,000 |
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Low Cut Filter |
0.05 - 255 Hz, 05 - 2.5 Hz (0.01 Hz steps), 5 - 62.0 Hz (0.25 Hz steps), 62 - 255 Hz (1.0 Hz steps) |
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High Cut Filter |
20 - 25,000 Hz, 20 - 1300 Hz (5 Hz steps), 1300 - 25,000 Hz (100 Hz steps) |
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Notch Filter |
(50/60 Hz) auto detected based on mains frequency |
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Outputs |
9-way connector on rear panel |
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Software |
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Operating System |
Windows 10, 32/64 bit and above |
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Dimensions |
Headstage: 134 x 76 x 39 mm, Amplifier: 228 x 242 x 111 mm |
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Weight |
Headstage: 0.255 kg, Amplifier: 3 kg |
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Power Requirements |
120 / 240 AVC, 50 / 60 Hz |
- Using transcranial magnetic stimulation to map the cortical representation of lower-limb muscles. Davies, J. L.. Clinical Neurophysiology Pracice. 2020
- Training intensity-dependent increases in corticospinal but not intracortical excitability after acute strength training. Colomer-Poveda, D., Hortobágyi, T., Keller, M., Romero-Arenas, S., & Márquez, G.. Scandinavian Journal of Medicine and Science in Sports. 2020
- Age-related differences of motor cortex plasticity in adults: A transcranial direct current stimulation study. Ghasemian-Shirvan, E., Farnad, L., Mosayebi-Samani, M., Verstraelen, S., Meesen, R. L. J., Kuo, M. F., & Nitsche, M. A.. Brain Stimulation. 2020
- Reproducibility of motor unit number index and MScanFit motor unit number estimation across intrinsic hand muscles. Higashihara, M., Menon, P., van den Bos, M., Pavey, N., & Vucic, S.. Muscle and Nerve. 2020
- Interneuronal networks mediate cortical inhibition and facilitation. Higashihara, M., Van den Bos, M. A. J., Menon, P., Kiernan, M. C., & Vucic, S.. Clinical Neurophysiology. 2020
- Measurement of axonal excitability: Consensus guidelines. Kiernan, M. C., Bostock, H., Park, S. B., Kaji, R., Krarup, C., Krishnan, A. V., … Burke, D.. Clinical Neurophysiology. 2020
Compatible Products
This product can be used in combination with some of our other systems. Find out more by selecting one from the list below.
Associated Techniques
To find out more about the techniques that are applicable to this product, follow the links below.
Added Value
In addition to supplying and supporting a wide range of neuroscience products, Brainbox offers additional value in a number of areas that can benefit our customers, including:
Training
Installation, Product Training, Technique Training, Bespoke Training
Lab Support
System Upgrades, Testing, Calibration, System Integration, Bespoke Solutions
Research Support
Study Design, Piloting, Technical Information, References
Collaboration
Grant Applications, Industrial Projects, Workshops
