Datasheet

ADS8317
SBAS356D –JUNE 2007–REVISED OCTOBER 2009 .................................................................................................................................................... www.ti.com
ELECTRICAL CHARACTERISTICS: V
DD
= +2.7V (continued)
At –40°C to +85°C, V
REF
= +1.25V, –IN = 1.25V, f
SAMPLE
= 200kHz, and f
CLK
= 24 × f
SAMPLE
, unless otherwise noted.
ADS8317I ADS8317IB
PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT
DIGITAL INPUTS
(1)
Logic family LVCMOS LVCMOS
High-level input voltage V
IH
V
DD
= 3.6V 2 V
DD
+ 0.3 2 V
DD
+ 0.3 V
Low-level input voltage V
IL
V
DD
= 2.7V –0.3 0.8 –0.3 0.3 × V
DD
V
Input current I
IN
V
I
= V
DD
or GND –50 +50 –50 +50 nA
Input capacitance C
I
5 5 pF
DIGITAL OUTPUTS
(1)
Logic family LVCMOS LVCMOS
High-level output voltage V
OH
V
DD
= 2.7V, I
OH
= –100μA V
DD
– 0.2 V
DD
– 0.2 V
Low-level output voltage V
OL
V
DD
= 2.7V, I
OL
= 100μA 0.2 0.2 V
High-impedance state output
I
OZ
CS = V
DD
, V
I
= V
DD
or GND –50 +50 –50 +50 nA
current
Output capacitance C
O
5 5 pF
Load capacitance C
L
30 30 pF
Data format Binary twos complement Binary twos complement
(1) Applies for 5.0V nominal supply: V
DD
(min) = 2.7V and V
DD
(max) = 3.6V.
ELECTRICAL CHARACTERISTICS: GENERAL
At –40°C to +85°C, –IN = GND, and f
DCLOCK
= 24 × f
SAMPLE
, unless otherwise noted.
ADS8317I ADS8317IB
PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT
ANALOG INPUT
Low-voltage levels 2.7 3.6 2.7 3.6 V
Power supply V
DD
5V logic levels 4.5 5.5 4.5 5.5 V
V
DD
= 2.7V, f
S
= 10kHz,
0.065 0.085 0.065 0.085 mA
f
DCLOCK
= 4.8MHz
V
DD
= 2.7V, f
S
= 100kHz,
0.7 1.0 0.7 1.0 mA
f
DCLOCK
= 4.8MHz
V
DD
= 2.7V, f
S
= 200kHz,
Operating supply current I
DD
1.4 2.0 1.4 2.0 mA
f
DCLOCK
= 4.8MHz
V
DD
= 5V, f
S
= 200kHz,
1.5 2.5 1.5 2.5 mA
f
DCLOCK
= 6MHz
V
DD
= 5V, f
S
= 250kHz,
2.0 3.0 2.0 3.0 mA
f
DCLOCK
= 6MHz
V
DD
= 2.7V 0.1 0.1 μA
Power-down supply current I
DD
V
DD
= 5V 0.2 0.2 μA
V
DD
= 2.7V, f
S
= 10kHz,
0.18 0.23 0.18 0.23 mW
f
DCLOCK
= 4.8MHz
V
DD
= 2.7V, f
S
= 100kHz,
1.9 2.7 1.9 2.7 mW
f
DCLOCK
= 4.8MHz
V
DD
= 2.7V, f
S
= 200kHz,
Power dissipation 3.8 5.4 3.8 5.4 mW
f
DCLOCK
= 4.8MHz
V
DD
= 5V, f
S
= 200kHz,
7.5 12.5 7.5 12.5 mW
f
DCLOCK
= 6MHz
V
DD
= 5V, f
S
= 250kHz,
10 15 10 15 mW
f
DCLOCK
= 6MHz
V
DD
= 2.7V, CS = V
DD
0.3 0.3 μW
Power dissipation in power-down
V
DD
= 5V, CS = V
DD
0.6 0.6 μW
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