Datasheet

Data Sheet AD8175
Rev. B | Page 7 of 40
ABSOLUTE MAXIMUM RATINGS
Table 12.
Parameter Rating
Analog Supply Voltage (V
POS
– V
NEG
) +6 V
Digital Supply Voltage (V
DD
– D
GND
)
+6 V
Ground Potential Difference
(V
NEG
– D
GND
)
+0.5 V to −2.5 V
Maximum Potential Difference
(V
DD
– V
NEG
)
+8 V
Common-Mode Analog Input Voltage (V
NEG
– 0.5 V)
to (V
POS
+ 0.5 V)
Differential Analog Input Voltage ±2 V
Digital Input Voltage V
DD
Output Voltage
(Disabled Analog Output)
(V
POS
– 1 V) to (V
NEG
+ 1 V)
Output Short-Circuit Duration
Momentary
Storage Temperature −65°C to +125°C
Operating Temperature Range −40°C to +85°C
Lead Temperature (Soldering 10 sec) 300°C
Junction Temperature 150°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
THERMAL RESISTANCE
θ
JA
is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages.
Table 13. Thermal Resistance
Package Type
θ
JA
Unit
PBGA 15 °C/W
POWER DISSIPATION
The AD8175 is operated with ±2.5 V or +5 V supplies and can
drive loads down to 100 Ω, resulting in a large range of possible
power dissipations. For this reason, extra care must be taken
derating the operating conditions based on ambient temperature.
Packaged in a 676-lead BGA, the AD8175 junction-to-ambient
thermal impedance (θ
JA
) is 15°C/W. For long-term reliability,
the maximum allowed junction temperature of the die should
not exceed 150°C. Temporarily exceeding this limit may cause a
shift in parametric performance due to a change in stresses
exerted on the die by the package. Exceeding a junction
temperature of 175°C for an extended period can result in
device failure. The following curve shows the range of allowed
internal die power dissipations that meet these conditions over
the −40°C to +85°C ambient temperature range. When using
Table 12, do not include external load power in the Maximum
Power calculation, but do include load current dropped on the
die output transistors.
06478-004
AMBIENT TEMPERATURE (°C)
MAXIMUM POWER (W)
3
4
5
6
7
8
9
10
15 25 35 45 55 65 75 85
T
J
= 150°C
Figure 4. Maximum Die Power Dissipation vs. Ambient Temperature
ESD CAUTION