参数资料
型号: MCP3421A5T-E/OT
厂商: Microchip Technology
文件页数: 6/30页
文件大小: 0K
描述: IC ADC 18BIT 3.75SPS SOT23-6
标准包装: 1
位数: 18
采样率(每秒): 3.75
数据接口: I²C,串行
转换器数目: 1
电压电源: 单电源
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: SOT-23-6
供应商设备封装: SOT-23-6
包装: 标准包装
输入数目和类型: 2 个单端,双极;1 个差分,单极
配用: MCP3421EV-ND - BOARD EVAL FOR MCP3421 SOT23-6
其它名称: MCP3421A5T-E/OTDKR
MCP3421
DS22003B-page 14
2006 Microchip Technology Inc.
FIGURE 5-2:
Timing Diagram For Reading From The MCP3421 With 18-Bit Mode.
9
1
9
1
9
19
1
9
1
9
1
0
1
A2
A1
A
0
D
RDY
O
/C
AC
K
by
MCP34
2
1
7
R/W
S
tar
tBit
by
Mast
er
Repea
t
of
D17
(MS
B)
2nd
B
yt
e
U
pper
Dat
a
B
yt
e
(D
at
a
on
Clocks
1-
6t
h
ca
n
be
igno
red)
AC
K
b
y
Mast
er
AC
K
b
y
Mast
er
ACK
b
y
Maste
r
AC
K
by
Maste
r
17
D
16
D
15
D
14
D
13
D
12
D
11
D
10
D
9
D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
C
1
C
0
S
1
S
0
G
1
G
0
1st
Byt
e
MCP34
21
Addr
ess
Byt
e
3rd
Byt
e
Mid
d
le
Dat
a
Byte
4t
h
Byte
Lower
Dat
a
B
yte
5t
h
Byte
Con
fig
uration
Byte
(Op
tio
nal)
C
1
C
0
S
1
S
0
G
1
G
0
NAK
by
Ma
st
er
S
top
Bi
t
by
Maste
r
(Op
tio
nal)
Nt
h
Repea
ted
B
yt
e
:
Con
fig
urat
ion
Byt
e
Note:
–MC
P3
421
d
evice
code
is
1101
.
–Address
Bit
sA2-
A0
=
00
0
are
prog
ramme
dat
the
factory
u
nle
ss
customer
re
que
st
ssp
ecific
co
des.
S
top
bi
tor
NAK
b
itcan
b
e
issued
an
ytime
duri
ng
read
ing.
–Dat
abit
son
cl
ocks
1
-
6th
in
2nd
byte
are
repe
ated
MSB
an
dcan
be
ig
nored
.
SC
L
SD
A
RDY
O
/C
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