1 Features
1• Performance
– INL: ±1 LSB Maximum at 16-Bit Resolution
– TUE: ±0.1% of FSR Maximum
• Integrated 2.5 V Precision Internal Reference
– Initial Accuracy: ±5 mV, Maximum
– Low Drift: 2 ppm/°C Typical
• High Drive Capability: 20 mA With 0.5 V From
Supply Rails
• Flexible Output Configuration
– User Selectable Gain: 2, 1 or ½
– Reset to Zero Scale or Midscale
• Wide Operating Range
– Power Supply: 2.7 V to 5.5 V
– Temperature: –40˚C to +125˚C
• 50-MHz, SPI-Compatible Serial Interface
– 4-Wire Mode, 1.7 V to 5.5 V Operation
– Daisy-Chain Operation
– CRC Error Check
• Low Power: 0.7 mA/Channel at 5.5 V
• Small Package: 3-mm × 3-mm, 16-Pin WQFN

2 Applications
• Optical Networking
• Wireless Infrastructure
• Industrial Automation
• Data Acquisition Systems

3 Description
The DAC80504, DAC70504, and DAC60504
(DACx0504) are a pin-compatible family of lowpower,
four-channel, buffered voltage-output, digitalto-
analog converters (DACs) with 16-, 14-, and 12-bit
resolution. The DACx0504 includes a low drift, 2.5-V
internal reference, eliminating the need for an
external precision reference in most applications. A
user-selectable gain configuration provides full-scale
output voltages of 1.25 V (gain = ½), 2.5 V (gain = 1),
or 5 V (gain = 2). These devices operate from a
single 2.7-V to 5.5-V supply, are specified monotonic,
and provide high linearity of ±1 LSB INL.
Communication to the DACx0504 is performed
through a 4-wire serial interface that operates at clock
rates of up to 50 MHz. The VIO pin enables serial
interface operation from 1.7 V to 5.5 V. The
DACx0504 flexible interface enables operation with a
wide range of industry-standard microprocessors and
microcontrollers.
The DACx0504 incorporate a power-on-reset circuit
that powers up and maintains the DAC outputs at
either zero scale or midscale until a valid code is
written to the device. These device consume a low
current of 0.7 mA/channel at 5.5 V, making these
devices an excellent choice for battery-operated
equipment. A per-channel power-down feature
reduces the device current consumption to 15 μA.
The DACx0504 is characterized for operation over
the temperature range of –40°C to +125°C, and is
available in a small, 3-mm × 3-mm QFN package.