DAC121C081, DAC121C085
SNAS395D –DECEMBER 2007–REVISED MARCH 2013
www.ti.com
Absolute Maximum Ratings(1)(2)(3)
Supply Voltage, VA
−0.3V to +6.5V
−0.3V to +6.5V
±10 mA
Voltage on any Input Pin
Input Current at Any Pin(4)
Package Input Current(4)
±20 mA
Power Consumption at TA = 25°C
See(5)
Human Body Model
Machine Model
2500V
VA, GND, VREF, VOUT, ADR0, ADR1
pins
250V
Charged Device Model (CDM)
Human Body Model
Machine Model
1000V
ESD Susceptibility(6)
5000V
SDA, SCL pins
350V
Charged Device Model (CDM)
1000V
Junction Temperature
Storage Temperature
+150°C
−65°C to +150°C
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but do not ensure specific performance limits. For ensured specifications and test conditions, see the
Electrical Characteristics. The ensured specifications apply only for the test conditions listed. Some performance characteristics may
degrade when the device is not operated under the listed test conditions. Operation of the device beyond the maximum Operating
Ratings is not recommended.
(2) All voltages are measured with respect to GND = 0V, unless otherwise specified.
(3) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications.
(4) When the input voltage at any pin exceeds 5.5V or is less than GND, the current at that pin should be limited to 10 mA. The 20 mA
maximum package input current rating limits the number of pins that can safely exceed the power supplies with an input current of 10
mA to two.
(5) The absolute maximum junction temperature (TJmax) for this device is 150°C. The maximum allowable power dissipation is dictated by
TJmax, the junction-to-ambient thermal resistance (θJA), and the ambient temperature (TA), and can be calculated using the formula
PDMAX = (TJmax − TA) / θJA. The values for maximum power dissipation will be reached only when the device is operated in a severe
fault condition (e.g., when input or output pins are driven beyond the operating ratings, or the power supply polarity is reversed).
(6) Human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor. Machine model is a 220 pF capacitor discharged
through 0 Ω. Charge device model simulates a pin slowly acquiring charge (such as from a device sliding down the feeder in an
automated assembler) then rapidly being discharged.
Operating Ratings(1)(2)
Operating Temperature Range
−40°C ≤ TA ≤ +125°C
+2.7V to 5.5V
+1.0V to VA
Supply Voltage, VA
Reference Voltage, VREFIN
Digital Input Voltage(3)
Output Load
0.0V to 5.5V
0 to 1500 pF
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but do not ensure specific performance limits. For ensured specifications and test conditions, see the
Electrical Characteristics. The ensured specifications apply only for the test conditions listed. Some performance characteristics may
degrade when the device is not operated under the listed test conditions. Operation of the device beyond the maximum Operating
Ratings is not recommended.
(2) All voltages are measured with respect to GND = 0V, unless otherwise specified.
(3) The inputs are protected as shown below. Input voltage magnitudes up to 5.5V, regardless of VA, will not cause errors in the conversion
result. For example, if VA is 3V, the digital input pins can be driven with a 5V logic device.
I/O
TO INTERNAL
CIRCUITRY
GND
4
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