MNDAC1054CM-X

Supply Voltage (AVcc, DVcc)............................................7V
Supply Voltage Difference (AVcc-DVcc).......................+5.5V
Voltage at Any Pin
(Note 3)................................Gnd -0.3V to AVcc/DVcc +0.3V
Input Current at Any Pin
(Note 3)........................................................................5mA
Package Input Current
(Note 4)......................................................................30mA
Power Dissipation
(Note 5)...................................................................950mW
ESD Susceptibility
(Note 6)
Human Body Model ...................................................2000V
Soldering Information
(10 Sec.) ....................................................................300 C
Storage Temperature.................................-65 C to +150 C
Maximum Junction Temperature..................................150 C
Thermal Resistance
ThetaJA
(Still Air) ...................................................................41 C/W
(500LF/Min Air flow)................................................. 22 C/W
ThetaJC ...................................................................3.0 C/W
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional. These ratings do not guarantee specific performance limits, however. For guaranteed specifications and test conditions, see the Converter Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions.
Note 2: All voltages are measured with respect to ground, unless otherwise specified.
Note 3: When the input voltage (Vin) at any pin exceeds the power supply rails (Vin<Gnd or Vin>V+) the absolute value of current at that pin should be limited to 5mA or less.
Note 4: The sum of the currents at all pins that are driven beyond the power supply voltages should not exceed 30mA.
Note 5: The maximum power dissipation must be derated at elevated temperatures and is dictated by Tjmax (maximum junction temperature), ThetaJA (package junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is Pdmax = (Tjmax-TA)/ThetaJA or the number given in the Absolute Maximum Ratings, whichever is lower.
Note 6: Human body model, 100pF discharged through a 1.5K Ohm resistor.

The DAC1054 is a complete quad 10-bit voltage-output digital-to-analog converter that can operate on a single 5V supply. It includes on-chip output amplifiers, internal voltage reference, and serial microprocessor interface. By combining in one package the reference, amplifiers, and conversion circuitry for four D/A converters, the DAC1054 minimizes wiring and parts count and is hence ideally suited for applications where cost and board space are of prime concern.

The DAC1054 also has a data readback function, which can be used by the microprocessor to verify that the desired input word has been properly latched into the DAC1054's data registers. The data readback function simplifies the design and reduces the cost of systems which need to verify data integrity.

The logic comprises a MICROWIRE(TM)-compatible serial interface and control circuitry. The interface allows the user to write to any one of the input registers or to all four at once. The latching registers are double-buffered, consisting of 4 separate input registers and 4 DAC registers. Each DAC register may be written to individually. Double buffering allows all 4 DAC outputs to be updated simultaneously or individually.The four reference inputs allow the user to configure the system to have a separate output voltage range for each DAC. The output voltage of each DAC1054 DAC can range between 0.3V and 2.8V and is a function of Vbias, Vref, and the input word.