Nanochap Programmable Universal Stimulation Chip Stim Engines Series ENS001 in ADHD Therapy Apparatus
ADHD, also known as Attention Deficit Hyperactivity Disorder (ADHD), is a common childhood neurodevelopmental disorder characterized by symptoms such as inattention, impulsivity, and hyperactivity. For the treatment of ADHD, in addition to medication and psychological interventions, neuroelectric stimulation technology has shown great potential in recent years. The Programmable Universal Stimulation Chip, Stim Engines Series ENS001, launched by Nanochap, also has unique features in ADHD treatment.
ENS001 is a highly integrated programmable current stimulator that incorporates modules such as an ARM processor, on-chip charging circuitry, a configurable boost DC converter, an LCD screen driver, 12-bit AD signal acquisition, a temperature sensor, and a multi-channel arbitrary current stimulation engine. The design concept of this chip is very different from that of traditional circuit boards, and it adopts the Current Mirror architecture, which creates a push-pull mechanism through a current source and a current absorber to generate a multi-channel, completely independent charge-balanced biphasic waveform. This waveform not only does not damage tissue but also does not corrode electrodes, ensuring long-term safety.
The ENS001 chip plays a central role in the ADHD treatment device（ADHD Therapy Apparatus）. The therapeutic instrument feeds electrical currents through the electrodes through the scalp to specific areas of the skull. These intracranial currents can reduce the excitability of neuron cells, which in turn causes a change in the functionality of the brain. This change helps improve attention, impulse control, and hyperactivity symptoms in people with ADHD. Compared to traditional medication, electrical nerve stimulation technology has the advantages of being non-invasive, free of side effects, and personalized treatment.
The ENS001 chip's high-precision adjustment capability is also a highlight. Through the "DAC-like" digital topology control, the current amplitude can be adjusted by an integer multiple of the unit reference current (μA level), which ensures the accuracy of treatment. In addition, the ENS001 supports almost all known in vitro or in vivo nerve/muscle stimulation modulation applications, providing more possibilities for ADHD treatment.
It is worth mentioning that the multi-channel arbitrary current stimulation engine of the ENS001 chip makes it possible to stimulate multiple regions simultaneously, thus realizing precise modulation of different functional areas of the brain. This multi-channel stimulation not only improves the therapeutic effect but also reduces the treatment time, bringing a better experience to the patients.
With the continuous development and improvement of neuroelectric stimulation technology, Nanochap's ENS001 chip has a promising application in the field of ADHD treatment. We have reason to believe that this innovative technology will bring safer, more effective, and personalized treatment solutions to ADHD patients, helping them regain a healthy and happy life.
(ENS001 top-level block diagram)
Nanochap Stim Engines Series Programmable Universal Stimulus Chip ENS001 Benefits and Features
Highly integrated, simplifying customer material management
Fine current control, each gear can only increase 33μA current, with 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 maintains the positive and negative half-cycle charge close to the equilibrium
Strong scalability, supports 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-channel high current range driver (8 electrodes) (max. 60V)
8-channel medium current range driver (16 electrodes) (60V max)
23-channel low-current range driver (24 electrodes) (60V max)
Core: ARM Cortex-M0 (32MHz)
Digital Interface: UART*2, I²C*2, SPI*2
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