1 Features
1• 1 LSB INL and DNL (10-bit and 8-bit)
• Wide operating range
– Power supply: 1.8 V to 5.5 V
– Temperature range: –40˚C to +125˚C
• PMBus™ compatible I2C interface
– Standard, Fast, and Fast+ modes
– Digital slew rate control
– 1.62-V VIH with VDD = 5.5 V
• User-programmable nonvolatile memory
(NVM/EEPROM)
– Save and recall all register settings
• Programmable waveform generation: Square,
ramp, and sawtooth
• Preprogrammed medical-alarm tone-generation
mode: low, medium, and high priority alarms
• Internal reference
• Very low power: 0.2 mA at 1.8 V
• Flexible startup: High impedance or 10K-GND
• Tiny package: 8-pin WSON (2 mm × 2 mm)

2 Applications
• Rack server
• Exit and emergency lighting
• Automotive USB charge
• Barcode scanner
• Active antenna system mMIMO (AAS)
• CPU (PLC controller)

3 Description
The 10-bit DAC53401 and 8-bit DAC43401
(DACx3401) are a pin-compatible family of buffered
voltage-output digital-to-analog converters (DACs).
These devices consume very low power, and are
available in a tiny 8-pin WSON package. The feature
set combined with the tiny package and low power
make the DACx3401 an excellent choice for
applications such as LED and general-purpose bias
point generation, power supply control, digitizers,
PWM signal generation, and medical alarm tone
generation.
These devices have nonvolatile memory (NVM), an
internal reference, and a PMBus-compatible I2C
interface. The DACx3401 operates with either an
internal reference or the power supply as a reference,
and provides full-scale output of 1.8 V to 5.5 V. The
devices communicate through the I2C interface.
These devices support I2C standard mode, fast
mode, and fast+ mode.
The DACx3401 are feature rich, and include PMBus
voltage margin commands, user-programmable
power up to high impedance, standalone waveform
generator, medical alarm tone generator, dedicated
feedback pin, and more.
The DACx3401 operate within the temperature range
of –40°C to +125°C.