參數(shù)資料
型號(hào): LTC1279
廠商: Linear Technology Corporation
元件分類: 串行ADC
英文描述: 12-Bit, 600ksps,Sampling A/D Converters with Shutdown(600ksps,12位采樣A/D轉(zhuǎn)換器(帶關(guān)斷))
中文描述: 12位,600ksps,采樣A / D轉(zhuǎn)換器的關(guān)斷(600ksps,12位采樣的A / D轉(zhuǎn)換器(帶關(guān)斷))
文件頁(yè)數(shù): 7/16頁(yè)
文件大?。?/td> 274K
代理商: LTC1279
7
LTC1279
PIU
U
A
IN
(Pin 1):
Analog Input. 0V to 5V (Unipolar),
±
2.5V
(Bipolar).
V
REF
(Pin 2):
2.42V Reference Output. Bypass to AGND
(10
μ
F tantalum in parallel with 0.1
μ
F ceramic).
AGND (Pin 3):
Analog Ground.
D11 to D4 (Pins 11 to 4):
Three-State Data Outputs.
D11 is the Most Significant Bit.
DGND (Pin 12):
Digital Ground.
D3 to D0 (Pins 13 to 16):
Three-State Data Outputs.
DV
DD
(Pin 17 ):
Digital Power Supply, 5V. Tie to AV
DD
pin.
SHDN (Pin 18):
Power Shutdown. The LTC1279 pow-
ers down when SHDN is low.
CONVST (Pin 19):
Conversion Start Input. It is active
low. The falling edge of the CONVST signal initiates a
U
conversion. The LTC1279 responds to CONVST signal
only if the signal applied to CS is a logic low.
RD (Pin 20):
READ Input. A logic low signal applied to
this pin enables the output data drivers when the signal
applied to the CS pin is a logic low.
CS (Pin 21):
The CHIP SELECT input must be a logic low
for the ADC to recognize the signals applied to the
CONVST and RD inputs.
BUSY (Pin 22):
The BUSY output shows the converter
status. It is a logic low during a conversion.
V
SS
(Pin 23):
Negative Supply. –5V will select bipolar
operation. Bypass to AGND with 0.1
μ
F ceramic. Tie to
analog ground to select unipolar operation.
AV
DD
(Pin 24):
Positive Supply, 5V. Bypass to AGND
(10
μ
F tantalum in parallel with 0.1
μ
F ceramic).
FU
U
W
12-BIT CAPACITIVE DAC
COMPAR-
ATOR
2.42V REF
V
REF
C
SAMPLE
SUCCESSIVE APPROXIMATION
REGISTER
OUTPUT LATCHES
D11
D0
BUSY
CONTROL LOGIC
CS
CONVST
RD
SHDN
INTERNAL
CLOCK
ZEROING
SWITCH
DV
DD
V
SS
(0V FOR UNIPOLAR MODE
OR –5V FOR BIPOLAR MODE)
AV
DD
A
IN
AGND
DGND
12
12
1279 BD
相關(guān)PDF資料
PDF描述
LTC1282AC 3V 140ksps 12-Bit Sampling A/D Converter with Reference
LTC1282ACN 3V 140ksps 12-Bit Sampling A/D Converter with Reference
LTC1282ACSW 3V 140ksps 12-Bit Sampling A/D Converter with Reference
LTC1282BC 3V 140ksps 12-Bit Sampling A/D Converter with Reference
LTC1282BCN 3V 140ksps 12-Bit Sampling A/D Converter with Reference
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