Neuro Amp EX

Neural Amplifier | Microneurography | Measuring Nerve Activity

$2,050.00 USD

Product code: FE285

The Neuro Amp EX is a front-end device that extends the capabilities of our PowerLab data acquisition system options to record nerve activity using the microneurographic technique.

As a low noise and high gain device, it is ideal for all recording environments requiring a wide bandwidth (100 Hz to 5 kHz) and a high signal to noise ratio.

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Overview

The Neuro Amp EX is a low noise and high gain neural amplifier device which makes it suitable for all recording environments requiring a wide bandwidth (100 Hz to 5 kHz) and a high signal to noise ratio.

As a front-end device, the Neuro Amp gives researchers the ability to measure nerve activity using the microneurographic technique, when using a C Series Front End Interface or traditional PowerLab data acquisition device.

The Neuro Amp EX is fully isolated and suitable for both human and animal use.

The Neuro Amp EX provides:

Full electrical isolation from power-line (mains) circuitry to guarantee subject safety
A low-noise, high-gain differential amplifier specifically designed for measuring nerve activity (nerve traffic)
Software-controlled low-pass, high-pass, and mains filters to remove unwanted signal frequencies
Audio output to listen to neurological signals

Supplied with the Neuro Amplifier EX:

The Neuro Amp EX headstage
Six male Amphenol connectors for customization of microelectrode adapters for use with the Neuro Amp EX Headstage

(Note: microelectrodes are not supplied).

About the Neuro Amp EX:

The Neuro Amp EX [FE285] is designed to allow our PowerLab data acquisition systems to perform isolated measurements of single-unit or multi-unit extracellular action potentials from single neurons or axons, from human or animal subjects. It consists of an electrically isolated differential input AC amplifier with an isolated ground connection. It is possible to ‘daisy-chain’ multiple Neuro Amp EXs to record from separate subjects, using separate grounds.

*Please note that the Neuro Amp EX is not suitable for intracellular recording with glass microelectrodes.

Research Applications

Features

Full electrical isolation from power-line (mains) circuitry to guarantee subject safety
A low-noise, high-gain differential amplifier specifically designed for neurophysiological extracellular signal measurements
Software-controlled low-pass, high-pass, and mains filters to remove unwanted signal frequencies for particular uses
Audio output to listen to neurological signals

The Neuro Amp EX headstage provides a gain of 100 x with a 10 Hz High Pass filter. The cable shielding is directly connected to the casing, limiting the need for additional shielding at the input terminals.

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Details and Tech Specs

Technical

Neuro Amp EX

Input

Connection type: Five-pin Redel connector
Input configuration: One isolated differential channel with isolated ground reference
Input impedance: 100 MΩ
Safety: Approved to IEC 60601-1 Standard (BF rating)
Isolation: 4000 Vrms (50 Hz for 1 minute)
Input ranges: ±20 μV to ±1 mV full scale in 6 steps (combined PowerLab, Neuro Amp EX front-end, and headstage)

Filtering

Low-pass filtering: Software-selectable: 1 kHz, 2 kHz, 5 kHz
High-pass filtering: First order filter. Software-selectable: 100 Hz, 300 Hz.

Output

Signal: ±4.5 V maximum
Audio output: Stereo jack with mono output; ±200 mV full scale, current limited to ±5 mA. Suitable for headphones or powered speakers.

Control Port

I²C port: Provides control and power.

Physical Configuration

Dimensions (h × w × d): 55 mm × 120 mm × 260 mm (2.2" × 4.7" × 10.2")
Weight: 1.3 kg (2 lb 13 oz)
Power requirements: ~2 W
Operating conditions: 5-35 °C, 0-90% humidity (non-condensing)
Transport / Storage conditions: 0-40 °C, 0-95% humidity (non-condensing)

Safety / Regulatory Information

Safety: Complies with IEC 60601-1:2012
EMC: Complies with IEC 60601-1-2:2014
Equipment: Use only with an ADInstruments 35 series PowerLab. The PowerLab must be connected to safety earth via the power supply cable to ensure electrical safety.