DACX3202中文資料德州儀器數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

1 Features

? Programmable voltage or current outputs with

flexible configuration:

– Voltage outputs:

? 1 LSB INL and DNL (10-bit and 8-bit)

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

– Current outputs:

? 1 LSB INL and DNL (8-bit)

? ±25 μA, ±50 μA, ±125 μA, ±250 μA output

range options

? 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, PMBus?, or SPI

interface

– 1.62-V VIH with VDD = 5.5 V

? General-purpose input/output (GPIO) configurable

as multiple functions

? Predefined waveform generation: sine, cosine,

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: –40?C to +125?C

? Tiny package: 16-pin WQFN (3 mm × 3 mm)

2 Applications

? Rack server

? Optical module

? Inter-DC interconnect (metro)

? High performance computing

? Standard notebook PC

3 Description

The 12-bit DAC63202 and 10-bit DAC53202

(DACx3202) are a pin-compatible family of dualchannel,

buffered, voltage-output and current-output

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

DACx3202 devices support Hi-Z power-down mode

and Hi-Z output during power-off conditions. 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, PMBus, and SPI 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.