Features • Guaranteed Monotonicity • Low Power Operation • Rail-to-Rail Voltage Output • Daisy Chain Capability • Power-on Reset to 0V • Simultaneous Output Updating • Individual Channel Power Down Capability • Wide power supply range (+2.7V to +5.5V) • Dual Reference Voltages with range of 0.5V to VA • Operating Temperature Range of −40°C to +125°C • Industry's Smallest Package Description The DAC128S085 is a full-featured, general purpose OCTAL 12-bit voltage-output digital-to-analog converter (DAC) that can operate from a single +2.7V to +5.5V supply and consumes 1.95 mW at 3V and 4.85 mW at 5V. The DAC128S085 is packaged in a 16-lead LLP package and a 16-lead TSSOP package. The LLP package makes the DAC128S085 the smallest OCTAL DAC in its class. The on-chip output amplifiers allow rail-to-rail output swing and the three wire serial interface operates at clock rates up to 40 MHz over the entire supply voltage range. Competitive devices are limited to 25 MHz clock rates at supply voltages in the 2.7V to 3.6V range. The serial interface is compatible with standard SPI, QSPI, MICROWIRE and DSP interfaces. The DAC128S085 also offers daisy chain operation where an unlimited number of DAC128S085s can be updated simultaneously using a single serial interface. There are two references for the DAC128S085. One reference input serves channels A through D while the other reference serves channels E through H. Each reference can be set independently between 0.5V and VA, providing the widest possible output dynamic range. The DAC128S085 has a 16-bit input shift register that controls the mode of operation, the power-down condition, and the DAC channels' register/output value. All eight DAC outputs can be updated simultaneously or individually. A power-on reset circuit ensures that the DAC outputs power up to zero volts and remain there until there is a valid write to the device. The power-down feature of the DAC128S085 allows each DAC to be independently powered with three different termination options. With all the DAC channels powered down, power consumption reduces to less than 0.3 µW at 3V and less than 1 µW at 5V. The low power consumption and small packages of the DAC128S085 make it an excellent choice for use in battery operated equipment. The DAC128S085 is one of a family of pin compatible DACs, including the 8-bit DAC088S085 and the 10-bit DAC108S085. All three parts are offered with the same pinout, allowing system designers to select a resolution appropriate for their application without redesigning their printed circuit board. The DAC128S085 operates over the extended industrial temperature range of −40°C to +125°C. Key Specification Resolution 12 bits INL ±8 LSB (max) DNL +0.75 / −0.4 LSB (max) Settling Time 8.5 µs (max) Zero Code Error +15 mV (max) Full-Scale Error −0.75 %FSR (max) Supply Power Normal 1.95 mW (3V) / 4.85 mW (5V) typ Power Down 0.3 µW (3V) / 1 µW (5V) typ Applications • Battery-Powered Instruments • Digital Gain and Offset Adjustment • Programmable Voltage & Current Sources • Programmable Attenuators • Voltage Reference for ADCs • Sensor Supply Voltage • Range Detectors

Also Recommended DAC088S085▲ For 8 Bits DAC108S085▲ For 10 Bits DAC121S101▲ For 12 Bit 1 Channel DAC122S085▲ For 12 Bit 2 Channel DAC124S085▲ For 12 Bit 4 Channel MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

Typical Application click for larger image	Block Diagram click for larger image Block Diagram
Typical Performance click for larger image

Datasheet

Title		Size	Date	Other Language
	DAC128S085 12-Bit Micro Power OCTAL Digital-to-Analog Converter with Rail-to-Rail Outputs	550 Kbytes	10-Mar-09	日本語

Featured Application Notes

Title		Size	Date	Other Language
	AN-2001: Application Note 2001 Daisy Chaining Precision DACs	141 Kbytes	25-Sep-09

More Application Notes

Title		Size	Date	Other Language
	AN-269: Application Note 269 Circuit Applications of Multiplying CMOS D to A Converters	295 Kbytes	4-Oct-04

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
DAC128S085CIMT	CMOS7	0	18406	0	0	1089000	4	309006723
DAC128S085CIMTX	CMOS7	0	18406	0	0	1089000	4	309006723
DAC128S085CISQ	CMOS7	0	18406	0	0	1089000	4	309006723

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.