Additional information
| MODEL | EXT-02F-2, EXT-02F-1, EXT-HS, EH-01 |
|---|
Single/Dual Extracellular Amplifier
EXT- 02F
Description
The EXT-02F has two differential inputs with high input resistance via BNC connectors or optionally with headstages. The output voltage signal is available AC or DC with variable gain (up to 10k), and can be filtered. The system is housed in a desktop metal case with an external power supply.
Two LEDs indicate whether the amplifier is running out of its linear range and an analog balance monitor makes the control of offsets easy. Furthermore, an audio monitor allows acoustic control of the recorded signal. The EXT-02F is also available as one-channel version.
The amplifer is suitable for single unit recording as well as for EEG and ECG recordings.
Last Updated on April 25, 2025
Features
- Two differential inputs
- Headstage available
- AC or DC mode
- Gain up to 10k
- Lowpass and highpass filters
- One or two channel version
Last Updated on April 25, 2025
Specifications
HEADSTAGES (optional):
Operating voltage ±12 V; Size (approx.): 65x25x25mm
holding bar diameter 9 mm, length 150 mm
Electrode connector: BNC with driven shield
Ground connector: 2.4 mm connector or headstage enclosure
Reference connector: gold-plated SMB, grounded shield
Input resistance: >1012 Ω
Differential input: cmr >90 dB at 1 kHz (tested with 0 Ω input resistance).
AC/DC OUTPUT:
filtered and amplified
impedance 50 Ω
DIFFERENTIAL INPUT:
BNC / SMB connector with headstage or BNC connectors
CMR >90 dB
GND position for each INPUT
INPUT RESISTANCE (without headstage):
10E+6 Ω , range ±1 V (lower input resistance on request)
LOW PASS FILTER:
30, 100, 500, 700, 900, 1.3k, 1.5k, 1.7k, 3k, 10k, 20k Hz
HIGH PASS FILTER:
OFF, 3, 30, 100, 300, 400, 500, 600, 800, 1k, 3k, 10k Hz
AUDIO MONITOR:
PITCH or NOISE, DC or AC
NOISE mode with THRESHOLD
channel selected by switch
connector external speaker / line
GAIN:
10, 20, 50, 100, 200, 500, 1k, 2k, 5k, 10k
OFFSET COMPENSATION:
Potentiometer with 2 ranges: ±0.1 V or ±1 V
MONITORS:
Impedance: 250 Ohms
GAIN: BNC connector, 1 V per step, +1 V….+7 V
FILTER: BNC connector, 1 V per step, -8 V….+7 V
COMMAND: BNC connector, sensitivity: x10
ANALOG BALANCE MONITOR:
ca. ±30 mV
EXTERNAL POWER SUPPLY:
AC output; 12-18V, 1 A
DIMENSIONS:
245 x 200 x 90 mm
Last Updated on April 25, 2025
Downloads
Manuals:
EXT-02F Manual
EXT-02B Manual
EXT-T2 Manual
EXT-16DX Manual
Brochure:
Last Updated on April 25, 2025
References
Lindemann J, Rakers C, Matuskova H, Simon BJ, Kinfe T, Petzold GC (2020) Vagus nerve stimulation reduces spreading depolarization burden and cortical infarct volume in a rat model of stroke. PLoS ONE 15(7): e0236444. https://doi.org/10.1371/journal.pone.0236444
Pfeiffer, F., Frommer‐Kaestle, G. and Fallier‐Becker, P. (2019), Structural adaption of axons during de‐ and remyelination in the Cuprizone mouse model. Brain Pathol, 29: 675-692. doi:10.1111/bpa.12748
Spatio-temporal heterogeneity in hippocampal metabolism in control and epilepsy conditions
Last Updated on April 25, 2025
Ordering
| Part No. | Description |
| EXT-02F-2 | Extracellular amplifier with two channels, without headstages |
| EXT-02F-1 | Extracellular amplifier with one channel, without headstage |
| EXT-HS | Differential headstage for extracellular amplifier |
| EH-01 | Electrode holder BNC, without port |
Last Updated on April 25, 2025
