Table 1 Benchmark of neuron circuits.

From: Ultra-low-power switching circuits based on a binary pattern generator with spiking neurons

References

Voltage (V)

Spike width (µs)

Digital circuit compatibility

Frequency (Hz)

Energy per spike (pJ)

Power (pW)

Process (nm)

Area (µm2)

Function

20

2.25

100

No

100

17

1700

350

1187

Spike frequency adaptation, positive feedback, refractory period

21

0.6

2600

No

100

0.4

40

90

442

Integrate-fire

22

1.8

–

Yes

8

2.8

22.4

180

116

Adaptive exponential I&F

23

0.2

17

No

26,000

0.004

105

65

35

Morris-Lecar

24

0.2

5000

No

16,000

0.002

30

65

31

Axon-Hillock

This work

1.0

0.4

Yes

6.6

0.18

1.2

180

504 (906)

Integrate-fire

This work

1.0

0.037

Yes

7,800,000

0.079

6,160,000

180

234 (401)

Integrate-fire

  1. The characteristics of the spiking neuron circuit in this work are compared with the state-of-the-art neuron circuits that were experimentally fabricated in the past literature. The area only includes the membrane capacitor and the subsequent circuits while the values in the brackets include the current generation MOSFETs at the input of the spiking neuron circuits.
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