Table 2.
Power consumption of each block.
Pressure Sensor Interface | Bias Circuit | AFE | ADC | Oscillator | Power on Reset | 1.8 V LDO | 2.5 V HV LDO | Data Transmission | Total |
---|---|---|---|---|---|---|---|---|---|
Voltage (V) | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 2.5 | 4.2 | 2.38 (rms) | - |
Current (µA) | 52 | 68 | 56.8 | 3.2 | 0.015 | 42.5 | 94 | 2.95 m (rms) | 3.27 m |
Power (µW) | 93.6 | 122.4 | 102.24 | 5.76 | 0.027 | 106.25 | 394.8 | 7 m | 7.8 mW |