Features Guaranteed Monotonicity to 8-bits Low Power Operation: 156 µA max @ 3.3V Extended power supply range (+2.7V to +5.5V) I 2C-Compatible 2-wire Interface which supports standard (100kHz), fast (400kHz), and high speed (3.4MHz) modes Rail-to-Rail Voltage Output Very Small Package Description The DAC081C081 is an 8-bit, single channel, voltage-output digital-to-analog converter (DAC) that operates from a +2.7V to 5.5V supply. The output amplifier allows rail-to-rail output swing and has an 4.5µsec settling time. The DAC081C081 uses the supply voltage as the reference to provide the widest dynamic output range and typically consumes 132µA while operating at 5.0V. It is available in 6-lead TSOT and LLP packages and provides three address options (pin selectable). As an alternative, the DAC081C085 provides nine I 2C addressing options and uses an external reference. It has the same performance and settling time as the DAC081C081. It is available in an 8-lead MSOP. The DAC081C081 and DAC081C085 use a 2-wire, I 2C-compatible serial interface that operates in all three speed modes, including high speed mode (3.4MHz). An external address selection pin allows up to three DAC081C081 or nine DAC081C085 devices per 2-wire bus. Pin compatible alternatives to the DAC081C081 are available that provide additional address options. The DAC081C081 and DAC081C085 each have a 16-bit register that controls the mode of operation, the power-down condition, and the output voltage. A power-on reset circuit ensures that the DAC output powers up to zero volts. A power-down feature reduces power consumption to less than a microWatt. Their low power consumption and small packages make these DACs an excellent choice for use in battery operated equipment. Each DAC operates over the extended industrial temperature range of −40°C to +125°C. The DAC081C081 and DAC081C085 are each part of a family of pin compatible DACs that also provide 12 and 10 bit resolution. For 12-bit DACs see the DAC121C081 and DAC121C085. For 10-bit DACs see the DAC101C081 and DAC101C085. Key Specification Resolution 8 bits INL ±0.6 LSB (max) DNL ±0.1 LSB (max) Settling Time 4.5 µs (max) Zero Code Error +10 mV (max) Full-Scale Error −0.7 %FS (max) Supply Power Normal 380 µW (3V) / 730 µW (5V) typ Power Down 0.5 µW (3V) / 0.9 µW (5V) typ Applications Industrial Process Control Portable Instruments Digital Gain and Offset Adjustment Programmable Voltage & Current Sources Test Equipment

Typical bus configuration

Typical Application click for larger image Typical bus configuration	Block Diagram click for larger image Block Diagram
Typical Performance click for larger image INL vs. Code

Parameters Values Resolution 8 bits Pin and Function Compatible Family 1 ch, SOT-6, 1 ch, LLP-6 Channels 1 Channels Interface Type I2C Settling Time 8500 ns INL (LSB) +/-0.5 DNL (LSB) +0.18, -0.13 Reference Source Supply Max Supply Voltage 5.5 Volt Min Supply Voltage 2.7 Volt Temperature Min -40 deg C Temperature Max 125 deg C OtherSupply Voltage 4.5V to 5.5V Data Converter Type DAC

Datasheets

Title		Size	Date	Other Language
	DAC081C081 8-Bit Micro Power Digital-to-Analog Converter with an I2C-Compatible Interface	648 Kbytes	16-Apr-08

Application Notes

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

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
DAC081C081CIMK/NOPB RoHS Status	TSOT	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 1000 AVNET-EM Worldwide 875 DIGI-KEY Worldwide 1129 MOUSER Worldwide 950 NEWARK Americas 101 RS COMPONENTS Worldwide 95 TAYLOR Americas 1000	$0.72 each at 1K+ pcs	reel of 1000
DAC081C081CIMKX/NOPB RoHS Status	TSOT	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$0.72 each at 1K+ pcs	reel of 3000
DAC081C081CISD/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 1937 MOUSER Worldwide 1000	$0.72 each at 1K+ pcs	reel of 1000
DAC081C081CISDX/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$0.72 each at 1K+ pcs	reel of 4500

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for DAC081C081.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for DAC081C081 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
DAC081C08XEB/NOPB	DAC081C08X Evaluation Board	Full production Lead Free (RoHS)	Distributor Region Qty DIGI-KEY Worldwide 0	CALL	N/A
Description: The DAC081C08XEB Design Kit is designed to ease evaluation and design-in of National Semiconductor`s DAC081C081/DAC081C085 family of Digital-to-Analog Converters. The Micro-Power DACs feature Rail-to-Rail Output and an I2C-Compatible interface. The evaluation board comes with the full-featured MSOP-8 version of the DAC. The evaluation board may be used in the Stand-Alone mode or Computer mode. In Stand-Alone mode, a Pattern Generator is used to interface to the DAC`s I2C Interface. In Computer Mode, a WaveVision4 Board (Rev4.1 or later) is used to drive the DAC`s I2C interface. Features: Guaranteed Monotonicity to 8-bits Low Power Operation: 156 µA max @ 3.3V Extended power supply range (+2.7V to +5.5V) I2C-Compatible 2-wire Interface which supports standard (100kHz), fast (400kHz), and high speed (3.4MHz) modes Rail-to-Rail Voltage Output Very Small Packages Contents: Evaluation Board User`s Guide Datasheet

National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C1) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/en/packaging/greennopb.html. Lead free products are RoHS compliant.

Lead Free product status is available through the search tool located here

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
DAC081C081CIMK/NOPB	12.959	TSOT	6	1	260	Detail	Download	N/A	X86C XTT
DAC081C081CIMKX/NOPB	12.959	TSOT	6	1	260	Detail	Download	N/A	X86C XTT
DAC081C081CISD/NOPB	11.721	LLP	6	1	260	Detail	Download	N/A	XTT X89
DAC081C081CISDX/NOPB	11.721	LLP	6	1	260	Detail	Download	N/A	XTT X89

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for DAC081C081.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for DAC081C081 is located at RoHS Status.

CAD Symbols and Models Download DAC081C081 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
DAC081C081CIMK	CMOS7	0	21301	0	0	1584000	3	449464325
DAC081C081CIMKX	CMOS7	0	21301	0	0	1584000	3	449464325
DAC081C081CISD	CMOS7	0	21301	0	0	1584000	3	449464325
DAC081C081CISDX	CMOS7	0	21301	0	0	1584000	3	449464325

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.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for DAC081C081.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for DAC081C081 is located at RoHS Status.