Overview

The STG5 Stimulus Generator is a compact, scalable electrical stimulation device combining voltage and current stimulation in a single easy-to-use unit. With an output range up to 16 mA, a fast 5 µs reaction time, and a channel count that scales from 2 to 8, the STG5 is designed for a broad range of electrophysiology applications.

Voltage and Current Stimulation in One Device

The STG5 integrates both voltage and current stimulation modes with no hardware reconfiguration required. Switching between modes is done with a single click in software — keeping your setup flexible and your workflow efficient.

Scalable 2–8 Channel Design

The STG5 system begins with a Base Unit providing 2 stimulation channels. Up to 3 STG5 Satellite Units can be added, each contributing 2 additional channels, for a maximum of 8 fully independent channels. All channels are galvanically isolated from each other, eliminating the need for a separate isolator.

Compact and Stackable

The STG5 is designed with lab space in mind. Its compact footprint fits easily on any bench, and the Base and Satellite Units interlock securely — like building blocks — for a clean, stable multi-unit stack.

Software: MC_Stimulus III

The STG5 is controlled by MC_Stimulus III, an intuitive software package for designing complex stimulation patterns. Patterns can be saved and reused, and switching between voltage and current modes is handled entirely within the software. Synchronized multi-channel stimulation, triggered stimulation in feedback loops, and a 5 µs time resolution are all supported.

Key Specifications

• Output range: up to 16 mA
• Time resolution: 5 µs
• Channels: 2 (Base Unit) + 2 per Satellite Unit, up to 8 total
• Galvanic isolation between all channels
• USB connectivity

Expert Support

Multi Channel Systems provides PhD-level scientific support across neuronal and cardiac electrophysiology, Xenopus oocyte research, and Patch Clamp. A sales and applications team is available for demonstrations, installation, and on-site training.

FAQ

Can the STG5 deliver both voltage and current stimulation?

Yes. The STG5 integrates both voltage and current stimulation modes in a single unit with no hardware changes required. Switching between modes is done with a single click in the MC_Stimulus III software, keeping your setup flexible and your workflow efficient.

How many channels does the STG5 support, and can it be expanded?

The STG5 Base Unit provides 2 galvanically isolated stimulation channels. Up to 3 STG5 Satellite Units can be added, each contributing 2 further channels, for a maximum of 8 fully independent channels. All channels are electrically isolated from each other, eliminating the need for a separate isolator.

What stimulation patterns can be programmed with MC_Stimulus III?

MC_Stimulus III supports the design of complex multi-channel stimulation patterns that can be saved and reused across experiments. It enables synchronized multi-channel stimulation, triggered stimulation in closed-loop feedback setups, and a 5 µs time resolution for precise temporal control.

What is the output range of the STG5?

The STG5 delivers an output range of up to 16 mA, with a reaction time of 5 µs. Its USB connectivity and compact, stackable design make it a practical solution for a wide range of in vitro and in vivo electrophysiology experiments.