DAC121C085CIMM datasheet(4/34 Pages) TI1

Nome de Peças	DAC121C085CIMM

Descrição Electrónicos	12-Bit Micro Power Digital-to-Analog Converter

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Fabricante Electrônico	TI1 [Texas Instruments]

Página de início	http://www.ti.com

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4 / 34 page

I/O

GND

TO INTERNAL

CIRCUITRY

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

Voltage on any Input Pin

−0.3V to +6.5V

Input Current at Any Pin(4)

±10 mA

Package Input Current(4)

±20 mA

Power Consumption at TA = 25°C

See(5)

Human Body Model

2500V

VA, GND, VREF, VOUT, ADR0, ADR1

Machine Model

250V

pins

Charged Device Model (CDM)

1000V

ESD Susceptibility(6)

Human Body Model

5000V

SDA, SCL pins

Machine Model

350V

Charged Device Model (CDM)

1000V

Junction Temperature

+150°C

Storage Temperature

−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 k

Ω 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

Supply Voltage, VA

+2.7V to 5.5V

Reference Voltage, VREFIN

+1.0V to VA

Digital Input Voltage(3)

0.0V to 5.5V

Output Load

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.

4

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