ADUC847 Analog Devices, ADUC847 Datasheet - Page 28

• Manufacturer Part Number: ADUC847
• Description: Precision Analog Microcontroller: 12MIPS 8052 Flash MCU + 10-Ch 24-Bit ADC + 12-Bit DAC
• Manufacturer: Analog Devices

Specifications of ADUC847

• Mcu Core: 8052
• Mcu Speed (mips): 12
• Sram (bytes): 2304Bytes
• Gpio Pins: 34
• Adc # Channels: 10
• Other: PWM

ADuC845/ADuC847/ADuC848
Thi
Thi
pro
whi
fully
grammin
s offset i
s average
le an asy
reflecte
t
SETTLE
s remove
nchron
d until t
g of th
by 2 m
=
f
ADC
2
e ADC is twice the no
ous step change on th
eans that the settling
he third subsequent
d by performing a r
=
2
×
t
ADC
SAMPLE 1
SAMPLE 1
NO/INVALID
NO OUTPUT
OUTPUT
Figure 14. ADC Settlin
unnin
outpu
Figure 13. ADC Settling Time Following a Synchronous Change with
time t
rma
e ana
SAMPLE 2
SAMPLE 2
SAMPLE 1 + SAMPLE 2
SAMPLE 1 + SAMPLE 2
l conver
VALID OUTPUT
VALID OUTPUT
log inp
g avera
t. See
o any
2
2
Figure
chang
sion
ut is n
SYNC
SAMPLE 3
SAMPLE 3
ge of
(I.E.
SAMPLE 2 + SAMPLE 3
(I.E. D
SAMPLE 2 + S
C
VALID OU
VALID OUTPUT
HRONOU
g Time Following an Asynchronous Change with
time,
HANNEL
ASYNCH
ISCONT
2.
e in
ot
13.
Rev. B | Page 28 of 108
2
2
Chop Enabled
Chop Enabled
S CHA
TPUT
INUO
CHA
AMPLE 3
SAMPLE 4
RON
SAMPLE 4
SAMPLE 3 + SAMPLE 4
SAMPLE 3 + SAMPLE 4
UNSETT
N
US INPUT
O
NGE
GE)
US CHA
NO OUTPUT
LED OUTPUT
2
2
NGE
CHAN
SAMPLE 5
SAMPLE 5
SAMPLE 4 + SAMPLE 5
SAMPLE 4 + SAMPLE 5
Th
a de
rms a
Ta
typi
and a common-mode voltage of 2.5 V. Note that the con-
version time increases by 0.732 ms for each increment in
UNSETTLED OUTPUT
ble 10, Ta
VALID OUTP
GE)
e allowab
cal and
fault of
nd pe
2
2
SAMPLE 6
SAMPLE 6
ak-to-p
SAMPLE 5 + SAMP
SAMPLE 5 + SAMPLE 6
gene
69 (45H). The corr
ble 11
le ra
UT
VALID OUTPUT
VALID OUTPUT
rated at a
nge for S
, Table 1
eak no
2
2
F (ch
ise pe
LE 6
2, a
diffe
nd Table
op enab
espond
rential i
rforma
ing co
nces
led) is
nput v
13. T
are sho
he num
nversi
oltage
13 to
on ra
wn in
255 w
of 0
bers
tes,
V
SF.
are
ith