參數(shù)資料
型號(hào): LTNT
廠商: Linear Technology Corporation
英文描述: 24-Bit No Latency ADC with Differential Input and Reference in MSOP
中文描述: 24位不具有差動(dòng)輸入和ADC的參考延遲,采用MSOP
文件頁(yè)數(shù): 18/40頁(yè)
文件大小: 503K
代理商: LTNT
LTC2411/LTC2411-1
18
Figure 7. External Serial Clock, CS = 0 Operation
EOC
BIT 31
SDO
SCK
(EXTERNAL)
CS
MSB
SIG
BIT 0
LSB
24
BIT 5
BIT 27
BIT 26
BIT 28
BIT 29
BIT 30
SLEEP
DATA OUTPUT
CONVERSION
2411 F07
CONVERSION
V
CC
F
O
REF
+
REF
SCK
IN
+
IN
GND
SDO
CS
1
10
2
3
9
4
5
6
8
7
REFERENCE
VOLTAGE
0.1V TO V
CC
ANALOG INPUT RANGE
–0.5V
REF
TO 0.5V
REF
2-WIRE I/O
1
μ
F
2.7V TO 5.5V
= 50Hz REJECTION (LTC2411)
= EXTERNAL OSCILLATOR
= 60Hz REJECTION (LTC2411)
= SIMULTANEOUS 50Hz/60Hz REJECTION (LTC2411-1)
V
CC
LTC2411/
LTC2411-1
Figure 8. Internal Serial Clock, Single Cycle Operation
Data is shifted out the SDO pin on each falling edge of SCK
enabling external circuitry to latch data on the rising edge
of SCK. EOC can be latched on the first rising edge of SCK.
On the 32nd falling edge of SCK, SDO goes HIGH (EOC=1)
indicating a new conversion has begun.
Internal Serial Clock, Single Cycle Operation
This timing mode uses an internal serial clock to shift out
the conversion result and a CS signal to monitor and
control the state of the conversion cycle, see Figure 8.
SDO
SCK
(INTERNAL)
CS
MSB
SIG
BIT 0
LSB
24
BIT 5
TEST EOC
BIT 27
BIT 26
BIT 28
BIT 29
BIT 30
EOC
BIT 31
SLEEP
DATA OUTPUT
CONVERSION
CONVERSION
2411 F08
<t
EOCtest
V
CC
10k
Hi-Z
Hi-Z
Hi-Z
Hi-Z
TEST EOC
V
CC
F
O
REF
+
REF
SCK
IN
+
IN
GND
SDO
CS
1
10
2
3
9
4
5
6
8
7
REFERENCE
VOLTAGE
0.1V TO V
CC
ANALOG INPUT RANGE
–0.5V
REF
TO 0.5V
REF
3-WIRE
SPI INTERFACE
1
μ
F
2.7V TO 5.5V
= 50Hz REJECTION (LTC2411)
= EXTERNAL OSCILLATOR
= 60Hz REJECTION (LTC2411)
= SIMULTANEOUS 50Hz/60Hz REJECTION (LTC2411-1)
V
CC
LTC2411/
LTC2411-1
APPLICATIOU
W
U
U
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