Datasheet

ADS8519
SLAS462D –JUNE 2007–REVISED SEPTEMBER 2010 www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
At T
A
= –40°C to +85°C, f
s
= 250kSPS, and V
DIG
= V
ANA
= 5V, using internal reference (unless otherwise specified).
ADS8519I ADS8519IB
PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT
DIGITAL INPUTS
Logic levels
V
IL
Low-level input voltage
(9)
V
DIG
= 1.65V to 5.25V –0.3 0.6 –0.3 0.6 V
V
IH
High-level input voltage
(9)
V
DIG
= 1.65V to 5.25V 0.5 x V
DIG
V
DIG
+ 0.3 0.5 x V
DIG
V
DIG
+ 0.3 V
I
IL
Low-level input current V
IL
= 0V ±10 ±10 mA
I
IH
High-level input current V
IH
= 5V ±10 ±10 mA
DIGITAL OUTPUTS
Data format Serial, 16-bits Serial, 16-bits
Binary 2's complement Binary 2's complement
Data coding
or straight binary or straight binary
Conversion results only available Conversion results only available
Pipeline delay
after completed conversion after completed conversion
Selectable for internal Selectable for internal
Data clock
or external data clock or external data clock
Internal clock (output only when
EXT/INT low 9 9 MHz
transmitting data)
External clock (can run
continually but not recommended EXT/INT high 0.1 26 0.1 26 MHz
for optimum performance)
I
SINK
= 1.6mA,
V
OL
Low-level output voltage 0.45 0.45 V
V
DIG
= 1.65V to 5.25V
I
SOURCE
= 500mA,
V
OH
High-level output voltage V
DIG
– 0.45 V
DIG
– 0.45 V
V
DIG
= 1.65V to 5.25V
Hi-Z state,
Leakage current ±5 ±5 mA
V
OUT
= 0V to V
DIG
Output capacitance Hi-Z state 15 15 pF
POWER SUPPLIES
V
DIG
Digital input voltage Must be ≤ V
ANA
1.65 5.25 1.65 5.25 V
V
ANA
Analog input voltage Must be ≤ V
ANA
4.75 5 5.25 4.75 5 5.25 V
I
DIG
Digital input current Must be ≤ V
ANA
0.1 1 0.1 1 mA
I
ANA
Analog input current Must be ≤ V
ANA
22 25 22 25 mA
POWER DISSIPATION
PWRD Low f
S
= 250kSPS 110 125 110 125 mW
PWRD High 20 20 mW
TEMPERATURE RANGE
Specified performance –40 +85 –40 +85 °C
Derated performance
(10)
–55 +125 –55 +125 °C
Storage –65 +150 –65 +150 °C
q
JA
Thermal resistance 67 67 °C/W
(9) TTL-compatible at 5V supply.
(10) The internal reference may not be started correctly beyond the industrial temperature range (–40°C to +85°C); therefore, use of an
external reference is recommended.
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