PIN CONFIGURATION
Top View
PIN DESCRIPTIONS
PIN
1
2
3
4
5
6
7
8
9
NAME
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
COM
DESCRIPTION
Analog Input Channel 0.
Analog Input Channel 1.
Analog Input Channel 2.
Analog Input Channel 3.
Analog Input Channel 4.
Analog Input Channel 5.
Analog Input Channel 6.
Analog Input Channel 7.
Ground reference for analog inputs. Sets zero code
voltage in single ended mode. Connect this pin to ground
or ground reference point.
Shutdown. When LOW, the device enters a very low
power shutdown mode.
Voltage Reference Input. See Specification Table for
ranges.
Power Supply, 2.7V to 5V.
Ground
Ground
Serial Data Output. Data is shifted on the falling edge of
D
CLK
. This output is high impedance when
CS is high.
Busy Output. Busy goes low when the DIN control bits
are being read and also when the device is converting.
The Output is high impedance when CS is High.
Serial Data Input. If CS is LOW, data is latched on rising
edge of D
CLK
.
Chip Select Input. Active LOW. Data will not be clocked
into D
IN
unless CS is low. When CS is high D
OUT
is high
impedance.
External Clock Input. The clock speed determines the
conversion rate by the equation f
CLK
= 24 • f
SAMPLE
.
Power Supply
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
COM
1
2
3
4
5
ADS8344
6
7
8
9
20
19
18
17
16
15
14
13
12
11
+V
CC
D
CLK
CS
D
IN
BUSY
D
OUT
GND
GND
+V
CC
V
REF
10
11
12
13
14
15
SHDN
V
REF
+V
CC
GND
GND
D
OUT
SHDN 10
16
BUSY
ABSOLUTE MAXIMUM RATINGS
(1)
+V
CC
to GND ........................................................................ –0.3V to +6V
Analog Inputs to GND ............................................ –0.3V to +V
CC
+ 0.3V
Digital Inputs to GND ........................................................... –0.3V to +6V
Power Dissipation .......................................................................... 250mW
Maximum Junction Temperature ................................................... +150°C
Operating Temperature Range ........................................ –40°C to +85°C
Storage Temperature Range ......................................... –65°C to +150°C
Lead Temperature (soldering, 10s) ............................................... +300°C
NOTE: (1) Stresses above those listed under “Absolute Maximum Ratings”
may cause permanent damage to the device. Exposure to absolute maximum
conditions for extended periods may affect device reliability.
17
18
D
IN
CS
19
20
CLK
+V
CC
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and
installation procedures can cause damage.
ESD damage can range from subtle performance degradation to
complete device failure. Precision integrated circuits may be
more susceptible to damage because very small parametric
changes could cause the device not to meet its published specifi-
cations.
PACKAGE/ORDERING INFORMATION
MINIMUM
RELATIVE
ACCURACY
(LSB)
8
"
"
"
6
"
"
"
MAXIMUM
GAIN ERROR
(%)
±0.05
"
"
"
±0.024
"
"
"
SPECIFICATION
TEMPERATURE
RANGE
–40°C to +85°C
"
"
"
–40°C to +85°C
"
"
"
PACKAGE
DRAWING
NUMBER
349
"
334
"
349
"
334
"
PRODUCT
ADS8344E
"
ADS8344N
"
ADS8344EB
"
ADS8344NB
"
PACKAGE
QSOP-20
"
SSOP-20
"
QSOP-20
"
SSOP-20
"
ORDERING
NUMBER
(1)
ADS8344E
ADS8344E/2K5
ADS8344N
ADS8344N/1K
ADS8344EB
ADS8344EB/2K5
ADS8344NB
ADS8344NB/1K
TRANSPORT
MEDIA
Rails
Tape and Reel
Rails
Tape and Reel
Rails
Tape and Reel
Rails
Tape and Reel
NOTES: (1) Models with a slash (/) are available only in Tape and Reel in the quantities indicated (e.g., /2K5 indicates 2500 devices per reel). Ordering 2500 pieces
of “ADS8344E/2K5” will get a single 2500-piece Tape and Reel.
®
ADS8344
4
BURR-BROWN [ BURR-BROWN CORPORATION ]
