Table 2.
An overview of electronic upgrades in an EEG amplifier.
| Technologies | Method Proposed | References | Used in |
|---|---|---|---|
| Amplifier | High pass filter in the front-end stage | [109,110] | [39,114,122] |
| Amplifier | Sample-and-hold (S–H) | [2,39] | [3,52,80] |
| Amplifier | S–H and a grounded plane | [116] | [39,123,124] |
| Amplifier | Limited slow rate in preamplifier | [41,53] | [39,41,42,53,124,125,126,127,128] |
| Amplifier | DC-amplifiers with wide dynamic range | [23,129] | [9,37,79,83,130,131] |
| Amplifier | DC-amplifiers and adjustable operational range | [23,129] | [9,37,83,130] |
| Amplifier | EEG system magnetic resonance (MR) compatible | [74] | [37,48,50,73,119] |
| Amplifier | High sensitivity and operational range | [60] | [37,71,132,133] |