DACX3004W中文資料德州儀器數(shù)據(jù)手冊(cè)PDF規(guī)格書

1 Features

? Programmable voltage or current outputs with

flexible configuration:

– Voltage outputs:

? 1 LSB DNL

? Gains of 1 ×, 1.5 ×, 2 ×, 3 ×, and 4 ×

– Current outputs:

? 1 LSB INL and DNL (8-bit)

? Unipolar and bipolar output range options

from 25 μA to 250 μA

? 35-μA/channel IDD in voltage-output mode

? Programmable comparator mode for all channels

? High-impedance output when VDD is off

? High-impedance and resistive pulldown powerdown

modes

? 50-MHz SPI-compatible interface

? Automatically detected I2C, SPI, or PMBus?

interface

– 1.62-V VIH with VDD = 5.5 V

? General-purpose input/output (GPIO) configurable

as multiple functions

? Predefined waveform generation: sine wave,

triangular, sawtooth

? User-programmable nonvolatile memory (NVM)

? Internal, external, or power-supply as reference

? Wide operating range:

– Power supply: 1.8 V to 5.5 V

– Temperature range: –40?C to +125?C

? Tiny package: 16-pin DSBGA (1.75 mm × 1.75

mm)

2 Applications

? Optical module

? Pulse oximeter

? Standard notebook PC

3 Description

The 12-bit DAC63004W and 10-bit DAC53004W

(DACx3004W) are a pin-compatible family of quadchannel,

buffered, voltage-output and current-output

smart digital-to-analog converters (DACs). These

DACx3004W support Hi-Z power-down mode and

Hi-Z output during power-off condition. The DAC

outputs provide a force-sense option for use as

a programmable comparator and current sink.

The multifunction GPIO, function generation, and

NVM enable these smart DACs for processorless

applications and design reuse. These devices

automatically detect I2C, SPI, and PMBus interfaces,

and contain an internal reference.

The feature set combined with the tiny package and

low power make these smart DACs an excellent

choice for applications such as voltage margining and

scaling, dc set-point for biasing and calibration, and

waveform generation.