1 Features

• 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

• General-purpose input (GPI) based function trigger

• PMBus™ compatible I2C interface

– Standard, fast, and fast mode plus

– Four device address options configured using

the broadcast address

– 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,

triangular, and sawtooth

• Pulse-width modulation (PWM) output using

triangular waveform and FB pin

• Preprogrammed medical-alarm tone-generation

mode: low-, medium-, and high-priority alarms

• Digital slew rate control

• Internal reference

• Very low power: 0.2 mA at 1.8 V

• Flexible start-up: High impedance or 10K-GND

• Tiny package: 8-pin WSON (2 mm × 2 mm)

2 Applications

• Oven

• Ventilators

• Infusion pump

• Anesthesia delivery systems

• Surgical equipment

• Rack server

• Exit and emergency lighting

3 Description

The 10-bit DAC53701 and 8-bit DAC43701

(DACx3701) are a pin-compatible family of buffered

voltage-output smart 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 DACx3701 an excellent choice for

applications such as appliance door fade-in fade-out,

processorless LED dimming with PWM input, generalpurpose

bias point generation, voltage margining and

scaling, PWM signal generation, and medical alarm

tone generation.

These devices have nonvolatile memory (NVM), an

internal reference, a PMBus-compatible I2C interface,

and a general-purpose input. The DACx3701

operates with either an internal reference or with the

power supply as a reference, and provides a full-scale

output of 1.8 V to 5.5 V.

The DACx3701 are smart DAC devices because of

their advanced integrated features. With force-sense

output, GPI based function trigger, medical alarm,

PWM output, and NVM capabilities, smart DACs

enable system performance and control without the

use of software.