Table 1 Magnetic thin film sensor output sensing devices due to various temperature coefficients and low-frequency noise amplitudes. Table adapted from ref. 179
| Â | Parameters | GMR | TMR | AMR |
|---|---|---|---|---|
Temperature | Temperature range (K) | 253–333180 | 300–405181 | 298–318182 |
Temperature coefficient of the sensitivity αsensitivity (% K−1) | −0.13 | 0.01 | 0.1 | |
Temperature range (K) | 253–333180 | – | 298–318182 | |
Temperature coefficient of the offset voltage, α drift (% K−1) | 0.019180 | Similar to AMR | 0.43182 | |
Noise (nV/\({\boldsymbol{\surd }}\)Hz) | Frequency range (Hz) | GMR single sensor183 | TMR single sensor184 | – |
1 | 25 | ~50 | – | |
100 | 5 | ~4.3 | – | |
Noise amplitude enhancement at 1–100 Hz in % | 400 | 1063 | – |
