Datasheet
ABSOLUTE MAXIMUM RATINGS
(1)
DAC8234
SBAS464A – AUGUST 2009 – REVISED SEPTEMBER 2009 ...........................................................................................................................................
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This integrated circuit can be damaged by ESD. Texas Instruments 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 specifications.
PACKAGE/ORDERING INFORMATION
(1)
RELATIVE DIFFERENTIAL SPECIFIED
ACCURACY LINEARITY PACKAGE- PACKAGE TEMPERATURE PACKAGE
PRODUCT (LSB) (LSB) LEAD DESIGNATOR RANGE MARKING
± 0.5 ± 0.5 QFN-40 RHA – 40 ° C to +105 ° C DAC8234
DAC8234
± 0.5 ± 0.5 TQFP-48 PFB – 40 ° C to +105 ° C DAC8234
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this data sheet, or see the TI
website at www.ti.com .
Over operating free-air temperature range (unless otherwise noted).
DAC8234 UNIT
AV
DD
to AV
SS
(2)
– 0.3 to 38 V
AV
DD
to AGND
(2)
– 0.3 to 25 V
AV
SS
to AGND, DGND
(2)
– 19 to 0.3 V
DV
DD
to DGND – 0.3 to 6 V
IOV
DD
to DGND – 0.3 to DV
DD
+ 0.3 V
Digital input voltage to DGND – 0.3 to IOV
DD
+ 0.3 V
SDO to DGND – 0.3 to IOV
DD
+ 0.3 V
SGND-x, REFGND-x, AGND to DGND – 0.3 to +0.3 V
V
OUT
-x, R
FB1
-x, R
FB2
-x, V
MON
, AIN to AV
SS
– 0.3 to AV
DD
+ 0.3 V
REF-x to REFGND-x, AGND – 0.3 to min(AV
DD
/2, – AV
SS
/2) V
GPIO-x to DGND – 0.3 to 6 V
GPIO-x input current 5 mA
Operating temperature range – 40 to +105 ° C
Storage temperature range – 65 to +150 ° C
Maximum junction temperature (T
J
max) +150 ° C
Human body model (HBM) 4 kV
ESD ratings
Charged device model (CDM) 1 kV
TQFP 57 ° C/W
Junction-to-ambient, θ
JA
QFN 32 ° C/W
Thermal impedance
TQFP 35 ° C/W
Junction-to-case, θ
JC
QFN 20 ° C/W
Power dissipation
(3)
(T
J
max – T
A
) / θ
JA
W
(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.
(2) AV
SS
must be < – 3.5V if AV
DD
≥ 1V.
(3) T
A
is the ambient temperature.
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