Table 10.
Comparison of various neuromorphic ADC concepts.
References | Description | Most similar conventional architecture | Parallel/ serial | Required analog precision / required design effort | Config. | Power | Sensor fusion possible |
---|---|---|---|---|---|---|---|
This work | digital decoding of analog input from neuron population signals | Flash and feedforward oversampling | Parallel | Very low / low, repetitive neuron circuit | Rate and resolution | x10 more power than best reported conventional | Yes |
Tapson and van Schaik, 2012 | Parallel noise shaping network with lateral inhibition | DSM | Parallel | Low / low, repetitive neuron circuit | rate and resolution | No data | No data |
Chande and Poonacha, 1995 | Binary threshold neurons in a weighted MSB to LSB decoder network | Successive approximation | Serial | Equal to ADC resolution / low, repetitive neuron circuit | resolution | No data, but likely comparable to median conventional | Yes |
Yang and Sarpeshkar, 2006 | Time-domain pipeline architecture, with neurons handling time domain processing | Pipeline | Serial | Equal to ADC resolution / high, numerous handcrafted components | No | on par with best reported conventional, subthreshold operation | No |