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8-Bit Micro Power Digital-to-Analog Converter with an I2C-Compatible Interface

DAC081C081CIMK/NOPB General Description

The DAC081C08x device is an 8-bit, single-channel, voltage-output digital-to-analog converter (DAC) that operates from a 2.7-V to 5.5-V supply. The output amplifier allows rail-to-rail output swing and has an 4.5-µsec settling time. The DAC081C081 uses the supply voltage as the reference to provide the widest dynamic output range and typically consumes 132 µA while operating at 5 V. It is available in 6-lead SOT and WSON packages and provides three address options (pin selectable).

As an alternative, the DAC081C085 provides nine I2C 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 VSSOP.

The DAC081C081 and DAC081C085 use a 2-wire, I2C-compatible serial interface that operates in all three speed modes, including high-speed mode (3.4 MHz). 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 Features

  • Ensured Monotonicity to 8-bits
  • Low Power Operation: 156 µA Maximum at 3.3 V
  • Extended Power Supply Range (2.7 V to 5.5 V)
  • I2C-Compatible 2-Wire Interface Which Supports Standard (100-kHz), Fast (400-kHz), and High-Speed (3.4-MHz) Modes
  • Rail-to-Rail Voltage Output
  • Very Small Package
  • Resolution 8 Bits
  • INL ±0.6 LSB (Maximum)
  • DNL ±0.1 LSB (Maximum)
  • Settling Time 4.5 µs (Maximum)
  • Zero Code Error +10 mV (Maximum)
  • Full-Scale Error −0.7 %FS (Maximum)
  • Supply Power
    • Normal
      • 380 µW (3 V)
      • 730 µW (5 V) Typical
    • Power Down
      • 0.5 µW (3 V)
      • 0.9 µW (5 V) Typical


  • Automation & Process Control
  • Portable Devices
  • Sensing & Instrumentation
  • Test & Measurement


Source Content uid DAC081C081CIMK/NOPB Pbfree Code Yes
Part Life Cycle Code Active Pin Count 6
Reach Compliance Code compliant ECCN Code EAR99
HTS Code 8542.39.00.01 Analog Output Voltage-Max 5.5 V
Analog Output Voltage-Min Converter Type D/A CONVERTER
Input Bit Code BINARY Input Format SERIAL
JESD-30 Code R-PDSO-G6 JESD-609 Code e4
Length 2.9 mm Linearity Error-Max (EL) 0.2344%
Moisture Sensitivity Level 1 Number of Bits 8
Number of Functions 1 Number of Terminals 6
Operating Temperature-Max 125 °C Operating Temperature-Min -40 °C
Peak Reflow Temperature (Cel) 260 Qualification Status Not Qualified
Sample Rate 0.18 MHz Seated Height-Max 1.1 mm
Settling Time-Max 4.5 µs Settling Time-Nom (tstl) 4.5 µs
Supply Current-Max 0.5 mA Supply Voltage-Nom 3 V
Surface Mount YES Technology CMOS
Temperature Grade AUTOMOTIVE Terminal Finish NICKEL PALLADIUM GOLD
Terminal Form GULL WING Terminal Pitch 0.95 mm
Terminal Position DUAL Time@Peak Reflow Temperature-Max (s) 30
Width 1.6 mm

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In Stock: 7,240

Minimum Order: 1

Qty. Unit Price Ext. Price
1+ $1.014 $1.01
10+ $0.862 $8.62
30+ $0.778 $23.34
100+ $0.684 $68.40
500+ $0.642 $321.00
1000+ $0.624 $624.00

The prices below are for reference only.