57.8.4.3 Example of LSB Computation

The LSB is relative to the analog scale V_VREFP.

The term LSB expresses the quantization step in volts, also used for one AFE code variation.

• Single-ended (SE) (ex: V_VREFP = 3.0V)
  • Gain = 1, LSB = (3.0V / 4096) = 732 μV
  • Gain = 2, LSB = (1.5V / 4096) = 366 μV
  • Gain = 4, LSB = (750 mV / 4096) = 183 μV
• Differential (DIFF) (ex: V_VREFP = 3.0V)
  • Gain = 1, LSB = (6.0V / 4096) = 1465 μV
  • Gain = 2, LSB = (3.0V / 4096) = 732 μV
  • Gain = 4, LSB = (1.5V / 4096) = 366 μV

The data include the AFE performances, as the PGA and AFE core cannot be separated. The temperature and voltage dependency are given as separate parameters.