Atmel Evaluation Kit for the SAM4E Series of Flash Microcontrollers ATSAM4E-EK ATSAM4E-EK Data Sheet
Product codes
ATSAM4E-EK
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
1448
47.7.6.2 Conditions @ 25°C with Gain =4
f
ADC
= 20 MHz
f
S
= 1 MHz, ADC Sampling Frequency in Free Run Mode
V
ADVREF
= 3V
Signal Amplitude: V
ADVREF
/2, Signal Frequency < 100 Hz
OSR: Number of Averaged Samples
Table 47-47.
ADC Resolution following Digital Averaging (Gain=4)
Parameter Averaging
Resolution
RES (AFEC_EMR)
Over
Sampling
Ratio
Mode
(bits)
INL
(LSB)
DNL
(LSB)
SNR
(dB)
THD
(dB)
ENOB
(Bits)
FS
(ksps)
Single Ended Mode
RES = 0
1
12
+/-1
+/-0.5
59
-81
9.5
1000
RES = 2
4
13
+1.7 / -1.3
+1.6 / -1
63.1
-82.9
10.2
250
RES = 3
16
14
+1.7 / -2.5
+2 / -1
67
-83.6
10.8
62.5
RES = 4
64
15
+/-8
—
70.3
-84.5
11.4
15.6
RES = 5
256
16
+/-12
—
74.8
-85.1
12.1
3.9
Differential Mode
RES = 0
1
12
+/-1
+/-0.5
62
-84.5
10
1000
RES = 2
4
13
+/-1
+/-1
67.7
-85.7
10.9
25
RES = 3
16
14
+4.1 / -1.6
+3.4 / -1
73.6
-86.8
11.9
6.25
RES = 4
64
15
+/-3.5
—
78.7
-86.8
12.7
1.56
RES = 5
256
16
+/-7.5
—
82.1
-86.8
13.1
0.39