Texas Instruments ADS131A04 Bruksanvisning

Läs gratis den bruksanvisning för Texas Instruments ADS131A04 (95 sidor) i kategorin ej kategoriserat. Guiden har ansetts hjälpsam av 2 personer och har ett genomsnittsbetyg på 4.8 stjärnor baserat på 7 recensioner. Har du en fråga om Texas Instruments ADS131A04 eller vill du ställa frågor till andra användare av produkten? Ställ en fråga

SCLK

DOUT

DIN

Control and

Serial Interface

GND

AVSS

DRDY

AVDD

VNCP

XTAL1/CLKIN

CS

Negative

Charge

Pump

Voltage

Reference

ADS131A04 Only

Reference

Mux

REFEXT

IOVDD

CLK/XTAL

XTAL2

M[2:0]

RESET

DONE

'6 ADC

'6 ADC

'6 ADC

'6 ADC

AIN4N

AIN4P

AIN3N

AIN3P

AIN2N

AIN2P

AIN1N

AIN1P

REFNREFP

Out-of-Range

Detect

Data Integrity

Watchdog

Timer

Product

Folder

Order

Now

Technical

Documents

Tools &

Software

Support &

Community

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

ADS131A02

,

ADS131A04

SBAS590E–MARCH2016–REVISEDJUNE2020

ADS131A0x2-or4-Channel,24-Bit,128-kSPS,Simultaneous-Sampling,Delta-SigmaADC

1

1Features

1

•2or4simultaneous-samplingdifferentialinputs

•Dataratesupto128kSPS

•Highperformance:

–Single-channelaccuracy:betterthan0.1%at

10,000:1dynamicrange

–Effectiveresolution:20.6bitsat8kSPS

–THD:–100dBat50Hzand60Hz

•Integratednegativechargepumpallowsabsolute

inputvoltagesbelowground

•Flexibleanalogpower-supplyoperation:

–Usingnegativechargepump:3.0Vto3.45V

–Unipolarsupply:3.3Vto5.5V

–Bipolarsupply:±2.5V

•Digitalsupply:1.65Vto3.6V

•Low-driftinternalvoltagereference:6ppm/°C

•ADCselfchecks

•Cyclicredundancycheck(CRC)andhamming

codeerrorcorrectiononcommunications

•MultipleSPIdatainterfacemodes:

–Asynchronousinterrupt

–Synchronousmasterandslave

•Package:32-pinTQFP

•Operatingtemperaturerange:

–40°Cto+125°C

2Applications

•Electricitymeters:commercialandresidential

•Circuitbreakers

•Batterytestequipment

•Batterymanagementsystems

•Dataacquisitionsystems

3Description

TheADS131A02andADS131A04devicesaretwo-

andfour-channel,simultaneous-sampling,24-bit,

delta-sigma(ΔΣ),analog-to-digitalconverters(ADCs).

Thewidedynamicrange,withscalabledataratesup

to128kSPS,andinternalfaultmonitorsmakethe

ADS131A02orADS131A04agoodchoicewhen

designingforenergymonitoring,gridprotection,and

controlapplications.TheADCinputscanbe

independentlyanddirectlyinterfacedtoaresistor-

dividernetwork,acurrenttransformer,oraRogowski

coiltomeasurevoltageorcurrent.Flexiblepower-

supplyoptions,includinganinternalnegativecharge

pump,areavailabletomaximizetheeffective

resolutionforhighdynamicrangeapplications.

Asynchronousandsynchronousmasterandslave

interfaceoptionsareavailable,providingADC

configurationflexibilitywhenchainingmultipledevices

inasinglesystem.Severalinterfacechecks,ADC

startupchecks,anddataintegritycheckscanbe

enabledontheinterfacetoreporterrorsintheADC

andduringdatatransfer.

Thecompleteanalogfront-end(AFE)solutionsare

packagedina32-pinTQFPpackageandare

specifiedovertheindustrialtemperaturerangeof

–40°Cto+125°C.

DeviceInformation

(1)

PARTNUMBERPACKAGEBODYSIZE(NOM)

ADS131A0xTQFP(32)5.00mm×5.00mm

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

SimplifiedBlockDiagram

Produktspecifikationer