Neuro Log isolated current stimulator NL800A
The NL800A is a battery-powered (GP23A types) constant current stimulation isolator developed for low noise applications, particularly in in vitro and in vivo electrophysiology. It provides a high-impedance output suitable for stimulation via microelectrodes or coarse electrodes. It is controlled by an NL510A or NL512 buffer module, depending on the stimulation mode required.
Features of the NL800A Isolated Current Neuro Log Stimulator
- Isolated constant current output (< 1 pF coupling) for minimal noise
- Powered by 5 GP23A batteries, with low standby power consumption
- Four output ranges for 0 to 10 mA current
- Control via NL510A or input voltage amplitude (NL512)
- Compact size, mounted close to the sample to reduce noise
- Stimulation time identical to input pulses: width from 2 µs to 30 s
Technical characteristics of the NL800A Neuro Log Isolated Current Stimulator
| Caractéristique | Valeur |
|---|---|
| Type of power supply | 5 × GP23A batteries |
| Output current | Constant current, 0-10 mA (4 ranges) |
| Insulation | Opto-coupled, < 1 pF output-input coupling |
| Amplitude control | Via NL510A (potentiometer) or analogue voltage (NL512) |
| Pulse duration | 2 µs to 30 s |
| Physical size | Very compact, suitable for close assembly |
| Operating noise | Low noise thanks to optical insulation |
| Risetime | Very fast, < a few tens of µs |
| Output impedance | Very high (>900 MΩ), variation < 10%. |
| Compatibility | Micro or large electrodes |
| Recommendations | Not for direct human use |
Applications
- Precise electrical stimulation via microelectrodes in electrophysiology
- Reduced capacitive noise thanks to mounting close to the preparation
- Biphasic stimulation with two NL800A + NL512 units
- Variable amplitude pulses via external analogue control
Documentation
Brochure
PDF file – 948.2 ko