Atmel SAM4S-EK2 Atmel ATSAM4S-EK2 ATSAM4S-EK2 Ficha De Dados
Códigos do produto
ATSAM4S-EK2
991
SAM4S [DATASHEET]
11100E–ATARM–24-Jul-13
Figure 41-6. Analog Full Scale Ranges in Single Ended/Differential Applications Versus Gain and Offset
41.6.10 ADC Timings
Each ADC has its own minimal Startup Time that is programmed through the field STARTUP in the Mode Register,
ADC_MR.
ADC_MR.
A minimal Tracking Time is necessary for the ADC to guarantee the best converted final value between two channel
selections. This time has to be programmed through the TRACKTIM bit field in the Mode Register, ADC_MR.
selections. This time has to be programmed through the TRACKTIM bit field in the Mode Register, ADC_MR.
V
IN+
gain=0.5
gain=1
gain=2
gain=4
single ended
se0fd1=0
fully differential
se0fd1=1
same as
gain=1
same as
gain=2
0
vrefin
(½)vrefin
vrefin
0
(¾)vrefin
(¼)vrefin
(½)vrefin
vrefin
0
(5/8)vrefin
(3/8)vrefin
(½)vrefin
offset=0
offset=1
offset=0
offset=1
(¼)vrefin
vrefin
0
(5/8)vrefin
(3/8)vrefin
(½)vrefin
(¼)vrefin
(¾)vrefin
(1/8)vrefin
(00)
(01)
(10)
(11)
V
IN+
V
IN+
V
IN+
V
IN+
V
IN+
V
IN+
V
IN-
V
IN+
V
IN-
V
IN+
V
IN-
V
IN+
V
IN-