Nanochap Neurostimulation Chip Stim Engines ENS001 on Transcranial Electrical Stimulation Supporting Multi-channel Stimulation Integration in a Small Footprint
In recent years, the therapeutic effect of non-invasive brain stimulation has attracted widespread attention, and transcranial electrical stimulation, as one of the most commonly used techniques for non-invasive brain stimulation, has demonstrated a very promising application value in the treatment of neurological diseases. With the continuous development of this technology, the requirements for the product's minimum current regulation accuracy, output current accuracy, minimum PCB volume when core functions are realized, the types of waveforms that can be realized and the difficulty of controlling them, and the types of peripherals are getting higher and higher, and Nanochap responds to and solves these requirements with the ENS001 chip.
The Nanochap Stim Engines ENS001 programmable neurostimulation chip is a highly integrated programmable current stimulator. The chip integrates an ARM processor, an on-chip charging circuit, a configurable boost DC converter, an LCD screen driver, a 12-bit AD signal acquisition, a temperature sensor, and a multi-channel arbitrary current stimulation engine and other modules, which support arbitrary current waveform outputs from DC to above 250kHz, and at the same time, provide a single-channel current amplitude of up to 67mA, and support the merging of multi-channel currents.
Fig. 1 Block diagram of PCB design for ENS001 program
Nanochap Stim Engines Programmable Universal Stimulus Chip ENS001 Advantages and Features
●Highly integrated, simplifying customer material management
●Fine current control, each gear can only increase 33μA current, control accuracy ±16.5μA
●Up to 250 kHz sine/triangle/square or arbitrary waveform current stimulation.
●Multi-channel stimulation integration in a small footprint
●Charge balance technology, through the charge replication technology to maintain the positive and negative half-cycle charge close to equilibrium
●Strong scalability, support multiple channels in parallel to realize multi-mode stimulation.
Product Parameters
●Operating voltage range: 3-5V
●Operating Temperature: -40℃ ~ 85℃
●Low power consumption modes: sleep, stop, standby
●4,8,23-channel wide-range stimulation driver (10V ~ 60V)
●Core: ARM Cortex-M0 (32MHz)
Product Top Block Diagram
Fig.2
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