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ADS114S08

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16 Bit-, 4-kSPS-, 12-Kanal-Delta-Sigma-ADC mit PGA und Spannungsreferenz zur Sensormessung

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ADS114S08

AKTIV
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Produktdetails

Resolution (Bits) 16 Sample rate (max) (ksps) 4 Number of input channels 12 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 2.625, 5.25 Input voltage range (min) (V) -2.625, 0 Features 50/60 Hz Rejection, Excitation Current Sources (iDACs), GPIO, Oscillator, PGA, Temp Sensor Operating temperature range (°C) -50 to 125 Power consumption (typ) (mW) 1.75 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.7 Digital supply (max) (V) 3.6
Resolution (Bits) 16 Sample rate (max) (ksps) 4 Number of input channels 12 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 2.625, 5.25 Input voltage range (min) (V) -2.625, 0 Features 50/60 Hz Rejection, Excitation Current Sources (iDACs), GPIO, Oscillator, PGA, Temp Sensor Operating temperature range (°C) -50 to 125 Power consumption (typ) (mW) 1.75 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.7 Digital supply (max) (V) 3.6
TQFP (PBS) 32 49 mm² 7 x 7 VQFN (RHB) 32 25 mm² 5 x 5
  • Low Power Consumption: As Low as 280 µA
  • Programmable Gain: 1 to 128
  • Programmable Data Rates: 2.5 SPS to 4 kSPS
  • Simultaneous 50-Hz and 60-Hz Rejection at
    ≤ 20 SPS with Low-Latency Digital Filter
  • Analog Multiplexer with 12 (ADS114S08) or 6 (ADS114S06) Independently Selectable Inputs
  • Dual-Matched Programmable Current Sources for Sensor Excitation: 10 µA to 2000 µA
  • Internal Reference: 2.5 V, 10 ppm/°C (max) Drift
  • Internal Oscillator: 4.096 MHz, 1.5% Accuracy
  • Internal Temperature Sensor
  • Extended Fault Detection Circuits
  • Self Offset and System Calibration
  • Four General-Purpose I/Os
  • SPI-Compatible Interface with Optional CRC
  • Analog Supply: Unipolar (2.7 V to 5.25 V) or Bipolar (±2.5 V)
  • Digital Supply: 2.7 V to 3.6 V
  • Operating Temperature: –50°C to +125°C
  • Low Power Consumption: As Low as 280 µA
  • Programmable Gain: 1 to 128
  • Programmable Data Rates: 2.5 SPS to 4 kSPS
  • Simultaneous 50-Hz and 60-Hz Rejection at
    ≤ 20 SPS with Low-Latency Digital Filter
  • Analog Multiplexer with 12 (ADS114S08) or 6 (ADS114S06) Independently Selectable Inputs
  • Dual-Matched Programmable Current Sources for Sensor Excitation: 10 µA to 2000 µA
  • Internal Reference: 2.5 V, 10 ppm/°C (max) Drift
  • Internal Oscillator: 4.096 MHz, 1.5% Accuracy
  • Internal Temperature Sensor
  • Extended Fault Detection Circuits
  • Self Offset and System Calibration
  • Four General-Purpose I/Os
  • SPI-Compatible Interface with Optional CRC
  • Analog Supply: Unipolar (2.7 V to 5.25 V) or Bipolar (±2.5 V)
  • Digital Supply: 2.7 V to 3.6 V
  • Operating Temperature: –50°C to +125°C

The ADS114S06 and ADS114S08 are precision, 16-bit, delta-sigma (ΔΣ), analog-to-digital converters (ADCs) that offer low power consumption and many integrated features to reduce system cost and component count in applications measuring small-signal sensors.

These ADCs feature configurable digital filters that offer low-latency conversion results and 50-Hz or
60-Hz 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, 2.5-V reference that reduces printed circuit board (PCB) area. Finally, two programmable excitation current sources (IDACs) allow for easy and accurate RTD biasing.

An input multiplexer supports 12 inputs for the ADS114S08 and six inputs for the ADS114S06 that can be connected to the ADC in any combination for design flexibility. In addition, these devices include features such as sensor burn-out detection, voltage bias for thermocouples, system monitoring, and four general-purpose I/Os.

The devices are offered in a leadless VQFN-32 or a TQFP-32 package.

The ADS114S06 and ADS114S08 are precision, 16-bit, delta-sigma (ΔΣ), analog-to-digital converters (ADCs) that offer low power consumption and many integrated features to reduce system cost and component count in applications measuring small-signal sensors.

These ADCs feature configurable digital filters that offer low-latency conversion results and 50-Hz or
60-Hz 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, 2.5-V reference that reduces printed circuit board (PCB) area. Finally, two programmable excitation current sources (IDACs) allow for easy and accurate RTD biasing.

An input multiplexer supports 12 inputs for the ADS114S08 and six inputs for the ADS114S06 that can be connected to the ADC in any combination for design flexibility. In addition, these devices include features such as sensor burn-out detection, voltage bias for thermocouples, system monitoring, and four general-purpose I/Os.

The devices are offered in a leadless VQFN-32 or a TQFP-32 package.
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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Datum
* Data sheet ADS114S0x Low-Power, Low-Noise, Highly Integrated, 6- and 12-Channel, 4-kSPS, 16-Bit, Delta-Sigma ADC with PGA and Voltage Reference datasheet (Rev. A) PDF | HTML 13 Jun 2017
Application note K-type thermocouple measurement circuit with precision ADC (Rev. A) PDF | HTML 20 Sep 2024
Application note Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) PDF | HTML 18 Mär 2024
Application note A Basic Guide to Bridge Measurements (Rev. A) PDF | HTML 13 Mär 2024
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 Dez 2023
Application note A Basic Guide to RTD Measurements (Rev. A) PDF | HTML 29 Mär 2023
Application note A Basic Guide to Thermocouple Measurements (Rev. A) PDF | HTML 29 Mär 2023
Application note Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 29 Mär 2023
Application note RTD Ratiometric Measurements and Filtering Using the ADS1148 and ADS1248 (Rev. A) PDF | HTML 27 Mär 2023
Application note Comparing ADS114S06 and ADS114S08 to the Lower-Cost ADS114S06B and ADS114S08B (Rev. B) PDF | HTML 15 Dez 2022
Application note ADS124S08 3-Wire PT100 RTD Measurement Circuit w/ Low-Side Reference and 1 IDAC (Rev. B) 09 Sep 2021
Application note Communication Methods for Data Integrity Using Delta-Sigma Data Converters (Rev. A) PDF | HTML 23 Aug 2021
Application note RTD Wire-Break Detection Using Precision Delta-Sigma ADCs PDF | HTML 18 Feb 2021
E-book Fundamentals of Precision ADC Noise Analysis (Rev. A) 19 Jun 2020
Analog Design Journal How delta-sigma ADCs work, Part 1 (Rev. A) 19 Sep 2016
Analog Design Journal How delta-sigma ADCs work, Part 2 09 Nov 2011

Design und Entwicklung

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Firmware

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The ADS124S08 Excel™ calculator tool provides the user with several easy-to-use tools to simplify the configuration of the ADS114S06, ADS114S08, ADS124S06, and ADS124S08. To ensure proper device functionality, the tool includes a common-mode-range calculator to easily determine if the (...)

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Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
TQFP (PBS) 32 Ultra Librarian
VQFN (RHB) 32 Ultra Librarian
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Bestellen & Qualität

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