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Texas Instruments ADS124S0x Stromsparender Analog-Digital-Wandler

ADS124S0x, Niedrigstrom-Analog-Digital-Wandler (ADCs) von Texas Instruments sind präzise 24-Bit Delta-Sigma-(ΔΣ)-ADCs mit geringem Stromverbrauch. Die ADS124S0x verfügen über viele integrierte Funktionen zur Reduzierung von Systemkosten und der Anzahl von Komponenten in Applikationen für die Messung von Kleinsignalsensoren. Diese ADCs verfügen über konfigurierbare digitale Filter, die Umwandlungsergebnisse mit geringer Latenz und 50 Hz- oder 60 Hz-Unterdrückung für geräuscharme industrielle Umgebungen bieten.

These Texas Instruments ADCs feature configurable digital filters that offer low-latency conversion results and 50Hz or 60Hz rejection for noisy industrial environments. A low-noise, programmable gain amplifier (PGA) provides gains ranging from 1 to 128 to amplify low-level signals for resistive bridge or thermocouple applications.

Additionally, these devices integrate a low-drift, 2.5V reference that reduces printed circuit board (PCB) area. Finally, two programmable excitation current sources (IDACs) allow for easy and accurate RTD biasing.

Merkmale

  • Low power consumption (as low as 280μA)
  • Low-noise PGA (19nVRMS at gain = 128)
  • 1 to 128 programmable gain 
  • 2.5SPS to 4kSPS programmable data rates 
  • Simultaneous 50Hz and 60Hz rejection at ≤ 20 SPS with low-latency digital filter
  • Analog multiplexer with 12 (ADS124S08) or 6 (ADS124S06) independently selectable inputs
  • Dual-matched programmable current sources for sensor excitation (10μA to 2000μA)
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  • 2.5V, 10ppm/°C (max) drift internal reference
  • 4.096MHz, 1.5% accuracy internal oscillator
  • Internal temperature sensor
  • Extended fault detection circuits
  • Self offset and system calibration
  • Four general-purpose I/Os
  • SPI-compatible interface with optional CRC
  • Unipolar (2.7V to 5.25V) or bipolar (±2.5V) analog supply
  • 2.7V to 3.6V digital Supply 
  • –50°C to +125°C operating temperature: 

Applikationen

  • Sensor transducers and transmitters (temperature, pressure, strain, flow)
  • PLC and DCS analog input modules
  • Temperature controllers
  • Climate chambers, industrial ovens

Videos

Block Diagram

Blockdiagramm - Texas Instruments ADS124S0x Stromsparender Analog-Digital-Wandler

Evaluation Module

Texas Instruments ADS124S08EVM Evaluierungsmodul

Bietet die Hardware- und Software-Unterstützung für die Evaluierung des ADS124S08 Delta-Sigma-ADCs.

Learn Moreüber Texas Instruments ADS124S08EVM Evaluierungsmodul View Productsverwandt mit Texas Instruments ADS124S08EVM Evaluierungsmodul
Veröffentlichungsdatum: 2016-12-27 | Aktualisiert: 2022-03-11