AFE Electrical Characteristics

Table 1. AFE INL and DNL, fAFE CLOCK = < 20 MHz Maximum, IBCTL = 10
Symbol Parameter Conditions Min. Typ. Max. Unit
Differential Mode
INL Integral Non-Linearity Gain = 1 -4 ±0.7 4 LSB
Gain = 2 ±1
Gain = 4 ±1.2
DNL Differential Non-Linearity -2 ±0.6 2 LSB
Single-Ended Mode
INL Integral Non-Linearity Gain = 1 -6 ±1 4 LSB
Gain = 2 ±1.3
Gain = 4 ±1.7
DNL Differential Non-Linearity -2 ±0.6 2 LSB
Note: INL/DNL given inside the linear range of the AFE: 2% to 98% of VREFP.
Table 2. AFE INL and DNL, fAFE CLOCK = > 20 MHz to 40 MHz, IBCTL = 11
Symbol Parameter Conditions Min. Typ. Max. Unit
Differential Mode
INL Integral Non-Linearity Gain = 1 -12 ±2 12 LSB
Gain = 2 ±2.1
Gain = 4 ±2.5
DNL Differential Non-Linearity -6 ±2 6 LSB
Single-Ended Mode
INL Integral Non-Linearity Gain = 1 -12 ±2 12 LSB
Gain = 2 ±2.6
Gain = 4 ±2.7
DNL Differential Non-Linearity -6 ±2 6 LSB
Note: INL/DNL given inside the linear range of the AFE: 2% to 98% of VREFP.
Table 3. AFE Offset and Gain Error, VVREFP = 1.7V to 3.3V
Symbol Parameter Conditions Min. Typ(1). Max. Unit
Differential Mode
EO Differential Offset Error (see Note 1) Gain=1 -20 35 LSB
EG Differential Gain Error Gain=1 -0.3 0 0.7 %
Gain=2 -0.3 0.3 1.4
Gain=4 -0.3 0.7 3.3
Single-Ended Mode
EO Single-ended Offset Error (see Note 1) Gain=1 -20 35 LSB
EG Single-ended Gain Error Gain=1 0.3 0.7 1.8 %
Gain=2 0.3 1.3 3.6
Gain=4 0.3 1.7 4.7