参数资料
型号: DC790A
厂商: Linear Technology
文件页数: 8/28页
文件大小: 0K
描述: BOARD DELTA SIGMA ADC LTC2439-1
软件下载: QuikEval System
设计资源: DC790A Design File
DC790A Schematic
标准包装: 1
系列: QuikEval™
ADC 的数量: 1
位数: 16
采样率(每秒): 6.8
数据接口: MICROWIRE?,串行,SPI?
工作温度: 0°C ~ 70°C
已用 IC / 零件: LTC2439-1
已供物品:
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LTC2439-1
16
24391fa
Figure 7. External Serial Clock, Reduced Data Output Length
(1)
(0)
EN
SGL
A2
A1
A0
ODD/
SIGN
SDI
DON’T CARE
SDO
SCK
(EXTERNAL)
CS
DATA
OUTPUT
CONVERSION
SLEEP
TEST EOC
DATA OUTPUT
Hi-Z
CONVERSION
24391 F06
MSB
SIG
BIT 4
BIT 14
BIT 13
BIT 12
BIT 11
BIT 5
BIT 15
BIT 16
BIT 17
EOC
BIT 18
BIT 0
EOC
Hi-Z
TEST EOC
VCC
FO
REF+
REF
CH0
CH7
CH8
CH15
COM
SCK
SDI
SDO
CS
GND
919
11
12
21
28
1
8
10
18
17
15
16
20
REFERENCE
VOLTAGE
0.1V TO VCC
ANALOG
INPUTS
1
F
2.7V TO 5.5V
LTC2439-1
4-WIRE
SPI INTERFACE
TEST EOC
(OPTIONAL)
= EXTERNAL CLOCK SOURCE
= INTERNAL OSC/SIMULTANEOUS
50Hz/60Hz REJECTION
“O”
APPLICATIO S I FOR ATIO
WU
UU
shift register. The input data is then shifted in via the SDI
pin on the rising edge of SCK (including the first rising
edge) and the output data is shifted out of the SDO pin on
each falling edge of SCK. EOC can be latched on the first
rising edge of SCK. On the 19th falling edge of SCK, SDO
goes HIGH (EOC = 1) indicating a new conversion has
begun.
Figure 8. External Serial Clock, CS = 0 Operation
(1)
(0)
EN
SGL
A2
A1
A0
ODD/
SIGN
SDI
DON’T CARE
EOC
BIT 18
SDO
SCK
(EXTERNAL)
CS
MSB
SIG
BIT 0
LSB
BIT 6
BIT 14
BIT 13
BIT 12
BIT 11
BIT 15
BIT 16
BIT 17
DATA OUTPUT
CONVERSION
24391 F07
CONVERSION
VCC
FO
REF+
REF
CH0
CH7
CH8
CH15
COM
SCK
SDI
SDO
CS
GND
919
11
12
21
28
1
8
10
18
17
15
16
20
REFERENCE
VOLTAGE
0.1V TO VCC
ANALOG
INPUTS
1
F
2.7V TO 5.5V
LTC2439-1
3-WIRE
SPI INTERFACE
= EXTERNAL CLOCK SOURCE
= INTERNAL OSC/SIMULTANEOUS
50Hz/60Hz REJECTION
“O”
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