Datasheet

1
2
3
4
8
7
6
5
V
DD
DCLOCK
D
OUT
CS/SHDN
REF
+IN
-IN
GND
ADS8317
REF
+IN
-IN
GND
V
DD
DCLOCK
D
OUT
CS/SHDN
1
2
3
4
8
7
6
5
ADS8317
(ThermalPad)
R
50W
ON
C
(SAMPLE)
24pF
V
DD
I/O
GND
V
DD
ANALOGIN
GND
DiodeTurn-OnVoltage:0.35V
EquivalentAnalogInputCircuit
V
DD
REF
GND
EquivalentReferenceInputCircuit
EquivalentDigitalInput/OutputCircuit
24pF
R
50W
ON
ADS8317
www.ti.com .................................................................................................................................................... SBAS356D –JUNE 2007–REVISED OCTOBER 2009
PIN CONFIGURATION
DGK PACKAGE
MSOP-8
(TOP VIEW)
DRB PACKAGE
SON-8
(TOP VIEW)
(1) The DRB package thermal pad must be soldered to the printed circuit board for proper thermal and mechanical
performance.
TERMINAL FUNCTIONS
TERMINAL
NAME NO. I/O DESCRIPTION
REF 1 Analog input Reference input
+IN 2 Analog input Noninverting analog input
–IN 3 Analog input Inverting analog input
GND 4 Power-supply connection Ground
CS/SHDN 5 Digital input Chip select when low; Shutdown mode when high.
D
OUT
6 Digital output Serial output data word
DCLOCK 7 Digital input Data clock synchronizes the serial data transfer and determines conversion speed.
V
DD
8 Power-supply connection Power supply
Equivalent Input Circuits (V
DD
= 5.0V)
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