IC-Hersteller Texas Instruments

IC-Hersteller (103)

Texas Instruments LMZ14203 | Demoboard TIDA-00732

18-bit, 2-Msps Isolated Data Acquisition Reference Design to Achieve Maximum SNR and Sampling Rate

Details

TopologieAbwärtswandler
Eingangsspannung12 V
Ausgang 15 V
IC-RevisionA

Beschreibung

This “18-bit, 2-Msps Isolated Data Acquisition Reference Design to achieve maximum SNR and sampling rate” illustrates how to overcome performance-limiting challenges typical of isolated data acquisition system design:Maximizing sampling rate by minimizing propagation delay introduced by digital isolatorMaximizing high-frequency AC signal chain performance (SNR) by effectively mitigating ADC sampling clock jitter introduced by the digital isolator

Eigenschaften

18-Bit, 2Msps, 1-Ch, differential input, isolated data acquisition (DAQ) systemLeverages multiSPI™ digital interface of ADS9110 to achieve 2MSPS sampling rate while maintaining a low SPI data rateSource synchronous SPI data transfer mode to minimize isolator propagation delay and improve sampling rateTechniques to reduce Isolator-induced jitter resulting in 12dB improvement in SNR (100kHz Fin, 2-MSPS)Tested design includes theory and calculations, component selection, PCB design, and measurement results

Typische Anwendungen

  • Modular DAQ Systems
  • Design Validation and Verification
  • Remote Process Monitoring and Control
  • Data Logging

Weiterführende Informationen

Artikeldaten

Artikel Nr.
Daten­blatt
Downloads
Status
Produktserie
Vin
VOut1(V)
IOut1(A)
Isolierungstyp
fswitch(kHz)
∫Udt(Vµs)
NPRI : NSEC
L(µH)
VT(V (RMS))
L(mm)
B(mm)
H(mm)
Montageart
Muster
WE-PPTI Push-Pull Transformers, 5 V (DC), 5 V
Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
Input Voltage 5 V (DC)
Ausgangsspannung 15 V
Ausgangsstrom 11 A
IsolierungstypVerstärkt 
Switching Frequency 150 - 800
Spannung-µSekunde46 Vµs
Übersetzungsverhältnis1:1.1 
Induktivität440 µH
Prüfspannung5000 V (RMS)
Länge12.32 mm
Breite15.41 mm
Höhe11.89 mm
MontageartSMT