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ADS122C14

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Delta-Sigma-ADC, 8 Kanäle, 24 Bit, 64 kSPS, mit PGA, VREF, zwei IDACs und I²C

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ADS122C14

AKTIV
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Produktdetails

Resolution (Bits) 24 Sample rate (max) (ksps) 64 Number of input channels 8 Interface type I2C Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 3.6 Input voltage range (min) (V) 0 Features Excitation Current Sources (iDACs), Integrated Temp Sensor , GPIO, Integrated oscillator, PGA Operating temperature range (°C) -50 to 125 Power consumption (typ) (mW) 0.103 Analog supply voltage (min) (V) 1.74 Analog supply voltage (max) (V) 3.6 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
Resolution (Bits) 24 Sample rate (max) (ksps) 64 Number of input channels 8 Interface type I2C Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 3.6 Input voltage range (min) (V) 0 Features Excitation Current Sources (iDACs), Integrated Temp Sensor , GPIO, Integrated oscillator, PGA Operating temperature range (°C) -50 to 125 Power consumption (typ) (mW) 0.103 Analog supply voltage (min) (V) 1.74 Analog supply voltage (max) (V) 3.6 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
WQFN (RTE) 16 9 mm² 3 x 3
  • Low power consumption (as low a 57µA)
  • Wide supply voltage range:
    • Analog: 1.74V to 3.6V
    • Digital: 1.65V to 3.6V
  • Programmable gain: 0.5 to 256
  • Programmable data rate (up to 64kSPS) and speed mode to trade power consumption and noise performance
  • Simultaneous 50Hz and 60Hz rejection at 20 or 25SPS with single-cycle settling digital filter
  • Analog multiplexer with 8 independently selectable inputs
  • Dual-matched programmable current sources
  • Internal programmable voltage reference:1.25V or 2.5V with 25ppm/°C (max) drift
  • Internal 1% (max) accurate oscillator
  • Internal temperature sensor
  • Four general-purpose I/Os (push-pull or open-drain output)
  • I2C-compatible interface with optional CRC
  • Supported I2C bus speeds: Sm, Fm, Fm+
  • Eight pin-programmable I2C addresses
  • Low power consumption (as low a 57µA)
  • Wide supply voltage range:
    • Analog: 1.74V to 3.6V
    • Digital: 1.65V to 3.6V
  • Programmable gain: 0.5 to 256
  • Programmable data rate (up to 64kSPS) and speed mode to trade power consumption and noise performance
  • Simultaneous 50Hz and 60Hz rejection at 20 or 25SPS with single-cycle settling digital filter
  • Analog multiplexer with 8 independently selectable inputs
  • Dual-matched programmable current sources
  • Internal programmable voltage reference:1.25V or 2.5V with 25ppm/°C (max) drift
  • Internal 1% (max) accurate oscillator
  • Internal temperature sensor
  • Four general-purpose I/Os (push-pull or open-drain output)
  • I2C-compatible interface with optional CRC
  • Supported I2C bus speeds: Sm, Fm, Fm+
  • Eight pin-programmable I2C addresses

The ADS1x2C14 are precision, low-power, 16- and 24-bit, analog-to-digital converters (ADCs) that offer many integrated features to reduce system cost and component count in the most common sensor measurement applications. The devices feature eight analog inputs through a flexible input multiplexer (MUX), a low-noise, programmable gain amplifier (PGA), a programmable low-drift voltage reference, two programmable excitation current sources, an oscillator, and a temperature sensor.

Four speed modes, with programmable output data rates from 20SPS up to 64kSPS, allow to optimize power consumption and noise performance for each application. At output data rates of 20SPS and 25SPS, the integrated digital filter offers simultaneous 50Hz and 60Hz line-cycle rejection with single-cycle settling.

The ADS1x2C14 are precision, low-power, 16- and 24-bit, analog-to-digital converters (ADCs) that offer many integrated features to reduce system cost and component count in the most common sensor measurement applications. The devices feature eight analog inputs through a flexible input multiplexer (MUX), a low-noise, programmable gain amplifier (PGA), a programmable low-drift voltage reference, two programmable excitation current sources, an oscillator, and a temperature sensor.

Four speed modes, with programmable output data rates from 20SPS up to 64kSPS, allow to optimize power consumption and noise performance for each application. At output data rates of 20SPS and 25SPS, the integrated digital filter offers simultaneous 50Hz and 60Hz line-cycle rejection with single-cycle settling.
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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Datum
* Data sheet ADS1x2C14 Low-power, 16- and 24-Bit, 8 -Channel, 64kSPS, Delta-Sigma ADC With PGA, Voltage Reference, and I2 C Interface datasheet PDF | HTML 10 Dez 2025
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 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 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
Application brief Low-Cost, Single-Chip, Diff Temp Measurement Solution Using Delta-Sigma ADCs (Rev. A) 04 Mai 2018

Design und Entwicklung

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Evaluierungsplatine

ADS122C14EVM-PDK — ADS122C14 – Evaluierungsmodul

Die Evaluierungsmodule (EVM) ADS122S14EVM und ADS122C14EVM ermöglichen Benutzenden die Evaluierung der Funktionalität von ADS122S14 mit serieller Peripherieschnittstelle (Serial-Peripheral Interface, SPI) und von ADS122C14 mit Inter-Integrated-Circuit-Schnittstelle (I2C). Diese Bausteine sind (...)
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Anwendungssoftware und Frameworks

ADC-TEMP-SENSOR-FW — Temperature-sensor firmware source files

This temperature-sensor linearization firmware provides a software routine for measuring and linearizing most common temperature sensors, including resistance temperature detectors (RTDs), thermocouples, thermistors (NTC, PTC, etc.) and analog temperature sensors.

This software includes an (...)

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