Datasheet
1443
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
47.7.5.2 ADC Electrical Performances
Single-ended Static Performances
Single-ended Dynamic Performances
Notes: 1. ADC Clock (f
ADC
) = 20 MHz, f
S
=1 MHz, f
IN
= 127 kHz, Frequency band = [1 kHz, 500 kHz] – Nyquist conditions fulfilled.
Differential Static Performances
Differential Dynamic Performances
Notes: 1. ADC Clock (f
ADC
) = 20 MHz, f
S
=1 MHz, f
IN
= 127 kHz, Frequency band = [1 kHz, 500 kHz] – Nyquist conditions fulfilled.
10-bit ADC Mode
In 10-bit mode, the ADC produces 12-bit output but the output data in AFEC_CDR is shifted 2 bits to the right,
removing the two LSBs of the 12-bit ADC.
The gain and offset have the same values as for 12-bit mode, with digital full-scale output code range reduced to
1024 (vs 4096).
The INL and DNL have the same values as for 12-bit mode.
Standard Deviation (LSB) 1.8 3.9 3.4 6 7
Min Value (LSB) -11.1 -19.4 -20.5 -25.3 -39.7
Max Value (LSB) -0.3 4 -0.1 10.7 2.3
Table 47-38. Single-ended Output Offset Error
Table 47-39. Single-ended Static Electrical Characteristics
Symbol Parameter Conditions Min Typ Max Unit
INL ADC Integral Non-linearity — -2 +/-1 2 LSB
DNL ADC Differential Non-linearity — -1 -+/-0.5 1 LSB
Table 47-40. Single-ended Dynamic Electrical Characteristics
(1)
Symbol Parameter Conditions Min Typ Max Unit
SNR Signal to Noise Ratio
(1)
56 64 72 dB
THD Total Harmonic Distortion
(1)
66 74 — dB
SINAD Signal to Noise and Distortion
(1)
55 62 — dB
ENOB Effective Number of Bits
(1)
910.5—bits
Table 47-41. Differential Static Electrical Characteristics
Symbol Parameter Conditions Min Typ Max Unit
INL Integral Non-linearity -2 +/-1 2 LSB
DNL Differential Non-linearity -1 +/-0.5 1 LSB
Table 47-42. Differential Dynamic Electrical Characteristics
(1)
Symbol Parameter Conditions Min Typ Max Unit
SNR Signal to Noise Ratio - SNR
(1)
60 64 74 dB
THD Total Harmonic Distortion - THD
(1)
76 80 — dB
SINAD Signal to Noise and Distortion - SINAD
(1)
60 64 73 dB
ENOB Effective Number of Bits ENOB
(1)
9.5 10.5 12 bits