LTC1291DCN8 Linear Technology, LTC1291DCN8 Datasheet - Page 8

• Manufacturer Part Number: LTC1291DCN8
• Description: IC DATA ACQ SYSTEM 12BIT 8-DIP
• Manufacturer: Linear Technology
• Type: Data Acquisition System (DAS)r

Specifications of LTC1291DCN8

• Resolution (bits): 12 b
• Data Interface: Serial, Parallel
• Voltage Supply Source: Single Supply
• Voltage - Supply: 5V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Sampling Rate (per Second): -

LTC1291
D
D
DATA (D
select (CS) signal. After CS falls, the LTC1291 looks for a
start bit. After the start bit is received, a 4-bit input word
is shifted into the D
and starts the conversion. After one null bit, the result of
D
* STOPPING THE CLOCK WILL HELP REDUCE POWER CONSUMPTION
8
A
CLK
CLK
CLK
D
OUT
MSB-FIRST DATA (MSBF = 1)
D
OUT
D
OUT
LSB-FIRST DATA (MSBF = 0)
CS
CS CAN BE BROUGHT HIGH ONCE D
CS
CS
IN
IN
IN
PPLICATI
HI-Z
IN
HI-Z
HI-Z
START
START
START
/D
OUT
SGL/
DIFF
SGL/
SGL/
DIFF
DIFF
). Data transfer is initiated by a falling chip
ODD/
SIGN
O
ODD/
SIGN
ODD/
SIGN
IN
U
MSBF
IN
MSBF
input which configures the LTC1291
t
t
MSBF
HAS BEEN CLOCKED IN
SMPL
SMPL
S
PS
PS
PS
I FOR ATIO
U
(Example: Differential Inputs (CH0 + , CH1 – ) and MSB-First Data)
B11
B11
B11
W
REQUEST POWER SHUTDOWN
(Example: Differential Inputs (CH0 + , CH1 – ))
Power Shutdown Operating Sequence
DATA NOT VALID
t
CONV
t
CONV
U
Operating Sequence
t
t
CYC
CYC
DON'T CARE
the conversion appears MSB-first on the D
conversion result is output, bit by bit, as the conversion is
performed. At the end of the data exchange, CS should be
brought high. This resets the LTC1291 in preparation for
the next data exchange.
B1
DON'T CARE
B1
DON'T CARE
B0
B0
B0
B1
FILLED WITH
ZEROES
FILLED WITH ZEROES
SHUTDOWN*
HI-Z
NEW CONVERSION BEGINS
START
SGL/
DIFF
OUT
ODD/
SIGN
B11
DON'T
FILLED WITH
CARE
line. The
ZEROES
MSBF
DON’T
CARE
PS
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