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零件编号
产品描述 (功能)
HI7191(1998) 查看數據表(PDF) - Intersil
零件编号
产品描述 (功能)
生产厂家
HI7191
(Rev.:1998)
24-Bit, High Precision, Sigma Delta A/D Converter
Intersil
HI7191 Datasheet PDF : 24 Pages
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Functional Block Diagram
AV
DD
TRANSDUCER
BURN-OUT
CURRENT
V
INHI
V
INLO
PGIA
∑
V
CM
HI7191
V
RHI
V
RLO
REFERENCE
INPUTS
∑−∆
MODULATOR
∫
∑
∫
1-BIT
D/A
DIGITAL FILTER
1
CLOCK
GENERATOR
OSC
1
OSC
2
CONTROL AND SERIAL INTERFACE UNIT
CONTROL REGISTER
SERIAL INTERFACE
UNIT
DRDY RESET SYNC CS MODE
S
CLK
SDIO SDO
Typical Application Schematic
10MHz
INPUT
+
INPUT
-
+5V
+
0.1uF
R
1
+2.5V
REFERENCE
-5V
0.1
µ
F
+
4.7
µ
F
17
16
13
OSC
1
OSC
2
15
AV
DD
DV
DD
+
+5V
4.7
µ
F
4.7
µ
F
12
V
INHI
11
V
INLO
10
V
CM
SCLK
SDIO
0.1
µ
F
1
3
2
SDO
DATA I/O
DATA OUT
9
V
RHI
8
V
RLO
7
AV
SS
AGND
14
19
SYNC
4
CS
5
DRDY
18
RESET
MODE
20
DGND
6
SYNC
CS
DRDY
RESET
1898
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