ADS122C04

ACTIVO

ADC delta-sigma de 24 bits, 2 kSPS, 4 canales, baja potencia y tamaño pequeño con PGA, VREF, 2x IDAC

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NUEVO ADS122C14 ACTIVO ADC delta-sigma de 24 bits y 64 kSPS de ocho canales con PGA, VREF, dos IDAC e I²C Increased sampling rate up to 64-kSPS with improved performance and more channels (8) in a smaller package

Detalles del producto

Resolution (Bits) 24 Sample rate (max) (ksps) 2 Number of input channels 4 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) 2.85, 5.6 Input voltage range (min) (V) -2.85, 0 Features 50/60 Hz Rejection, Excitation Current Sources (iDACs), Oscillator, PGA, Small Size, Temp Sensor Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 1.4 Analog supply voltage (min) (V) 2.3 Analog supply voltage (max) (V) 5.5 Digital supply (min) (V) 2.3 Digital supply (max) (V) 5.5
Resolution (Bits) 24 Sample rate (max) (ksps) 2 Number of input channels 4 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) 2.85, 5.6 Input voltage range (min) (V) -2.85, 0 Features 50/60 Hz Rejection, Excitation Current Sources (iDACs), Oscillator, PGA, Small Size, Temp Sensor Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 1.4 Analog supply voltage (min) (V) 2.3 Analog supply voltage (max) (V) 5.5 Digital supply (min) (V) 2.3 Digital supply (max) (V) 5.5
TSSOP (PW) 16 32 mm² (5 mm × 6.4 mm) WQFN (RTE) 16 9 mm² (3 mm × 3 mm)
  • Current Consumption as Low as 315 µA (typ)
  • Wide Supply Range: 2.3 V to 5.5 V
  • Programmable Gain: 1 to 128
  • Programmable Data Rates: Up to 2 kSPS
  • Up to 20 Bits Effective Resolution
  • Simultaneous 50-Hz and 60-Hz Rejection at 20 SPS With Single-Cycle Settling Digital Filter
  • Two Differential or Four Single-Ended Inputs
  • Dual-Matched Programmable Current Sources:
    10 µA to 1.5 mA
  • Internal 2.048-V Reference: 5 ppm/°C (typ) Drift
  • Internal 2% Accurate Oscillator
  • Internal Temperature Sensor:
    0.5°C (typ) Accuracy
  • I2C-Compatible Interface
  • Supported I2C Bus Speed Modes:
    Standard-Mode, Fast-Mode, Fast-Mode Plus
  • 16 Pin-Configurable I2C Addresses
  • Package: 3.0-mm × 3.0-mm × 0.75-mm WQFN
  • Current Consumption as Low as 315 µA (typ)
  • Wide Supply Range: 2.3 V to 5.5 V
  • Programmable Gain: 1 to 128
  • Programmable Data Rates: Up to 2 kSPS
  • Up to 20 Bits Effective Resolution
  • Simultaneous 50-Hz and 60-Hz Rejection at 20 SPS With Single-Cycle Settling Digital Filter
  • Two Differential or Four Single-Ended Inputs
  • Dual-Matched Programmable Current Sources:
    10 µA to 1.5 mA
  • Internal 2.048-V Reference: 5 ppm/°C (typ) Drift
  • Internal 2% Accurate Oscillator
  • Internal Temperature Sensor:
    0.5°C (typ) Accuracy
  • I2C-Compatible Interface
  • Supported I2C Bus Speed Modes:
    Standard-Mode, Fast-Mode, Fast-Mode Plus
  • 16 Pin-Configurable I2C Addresses
  • Package: 3.0-mm × 3.0-mm × 0.75-mm WQFN

The ADS122C04 is a precision, 24-bit, analog-to-digital converter (ADC) that offers many integrated features to reduce system cost and component count in applications measuring small sensor signals. The device features two differential or four single-ended inputs through a flexible input multiplexer (MUX), a low-noise, programmable gain amplifier (PGA), two programmable excitation current sources, a voltage reference, an oscillator, and a precision temperature sensor.

The device can perform conversions at data rates up to 2000 samples-per-second (SPS) with single-cycle settling. At 20 SPS, the digital filter offers simultaneous 50-Hz and 60-Hz rejection for noisy industrial applications. The internal PGA offers gains up to 128. This PGA makes the ADS122C04 ideally suited for applications measuring small sensor signals, such as resistance temperature detectors (RTDs), thermocouples, thermistors, and resistive bridge sensors.

The ADS122C04 features a 2-wire, I2C-compatible interface that supports I2C bus speeds up to 1 Mbps. Two address pins allow selection of 16 different I2C addresses for the device.

The ADS122C04 is offered in a leadless 16-pin WQFN or a 16-pin TSSOP package and is specified over a temperature range of –40°C to +125°C.

The ADS122C04 is a precision, 24-bit, analog-to-digital converter (ADC) that offers many integrated features to reduce system cost and component count in applications measuring small sensor signals. The device features two differential or four single-ended inputs through a flexible input multiplexer (MUX), a low-noise, programmable gain amplifier (PGA), two programmable excitation current sources, a voltage reference, an oscillator, and a precision temperature sensor.

The device can perform conversions at data rates up to 2000 samples-per-second (SPS) with single-cycle settling. At 20 SPS, the digital filter offers simultaneous 50-Hz and 60-Hz rejection for noisy industrial applications. The internal PGA offers gains up to 128. This PGA makes the ADS122C04 ideally suited for applications measuring small sensor signals, such as resistance temperature detectors (RTDs), thermocouples, thermistors, and resistive bridge sensors.

The ADS122C04 features a 2-wire, I2C-compatible interface that supports I2C bus speeds up to 1 Mbps. Two address pins allow selection of 16 different I2C addresses for the device.

The ADS122C04 is offered in a leadless 16-pin WQFN or a 16-pin TSSOP package and is specified over a temperature range of –40°C to +125°C.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos ADS122C04 24-Bit, 4-Channel, 2-kSPS, Delta-Sigma ADC With I2C Interface datasheet (Rev. B) PDF | HTML 19/10/2018
Nota sobre la aplicación A Simple, Java-Based CRC Calculator PDF | HTML 4/03/2026
Nota sobre la aplicación K-type thermocouple measurement circuit with precision ADC (Rev. A) PDF | HTML 20/09/2024
Nota sobre la aplicación Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) PDF | HTML 18/03/2024
Nota sobre la aplicación A Basic Guide to Bridge Measurements (Rev. A) PDF | HTML 13/03/2024
Nota sobre la aplicación A Basic Guide to RTD Measurements (Rev. A) PDF | HTML 29/03/2023
Nota sobre la aplicación Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 29/03/2023
Nota sobre la aplicación A Basic Guide to Thermocouple Measurements (Rev. A) PDF | HTML 29/03/2023
Nota sobre la aplicación RTD Ratiometric Measurements and Filtering Using the ADS1148 and ADS1248 (Rev. A) PDF | HTML 27/03/2023
Nota sobre la aplicación ADS124S08 3-Wire PT100 RTD Measurement Circuit w/ Low-Side Reference and 1 IDAC (Rev. B) 9/09/2021
Nota sobre la aplicación Communication Methods for Data Integrity Using Delta-Sigma Data Converters (Rev. A) PDF | HTML 23/08/2021
Nota sobre la aplicación RTD Wire-Break Detection Using Precision Delta-Sigma ADCs PDF | HTML 18/02/2021
Libro electrónico Fundamentals of Precision ADC Noise Analysis (Rev. A) 19/06/2020
Application brief Low-Cost, Single-Chip, Diff Temp Measurement Solution Using Delta-Sigma ADCs (Rev. A) 4/05/2018
Application brief Thermocouple Temperature Measurements Using Isolated Amplifiers (Rev. A) 11/08/2017
Application brief Reducing System Cost, Size and Power in Isolated DAQ Systems Using ADS122U04 (Rev. A) 15/06/2017
Informe Fully integrated signal and power isolation – applications and benefits 10/02/2017
Libro electrónico Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 19/03/2015

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

ADS122C04EVM — Módulo de evaluación ADS122C04

El módulo de evaluación (EVM) ADS122C04 es una plataforma para evaluar el convertidor analógico a digital (ADC) ADS122C04. El ADS122C04 es un convertidor analógico a digital sigma-delta de 24 bits, 2 kSPS, 4 canales, baja potencia y con interfaz I2C para aplicaciones de medición de sensores y (...)

Guía del usuario: PDF
Productos y hardware compatibles
Software de aplicación y estructura

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

Este firmware de linealización de sensores de temperatura proporciona una rutina de software para medir y linealizar los sensores de temperatura más comunes, incluidos los detectores de temperatura de resistencia (RTD), los termopares, los termistores (NTC, PTC, etc.) y los sensores de temperatura (...)

Productos y hardware compatibles
Soporte de software

ADS122C04-C-EXAMPLE-CODE — ADS122C04 example C code

Expedite your embedded design using this example C code for the ADS122C04 product family
Productos y hardware compatibles
Modelo de simulación

ADS122C04 IBIS Model

SBAM329.ZIP (37 KB) - Modelo IBIS
Productos y hardware compatibles
Herramienta de cálculo

ADC-RTD-CONFIG-CALC — RTD Configuration Calculator for Precision ADCs

This resistance temperature detector (RTD) configuration calculator is a Microsoft® Excel-based tool that helps the user identify a system solution for an RTD application. Two-, three- and four-wire RTD configurations are shown by default, with options for a high-side or low-side reference (...)

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Herramienta de cálculo

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

La calculadora del ingeniero analógico está diseñada para acelerar muchos de los cálculos repetitivos que los ingenieros de diseño de circuitos analógicos utilizan de forma habitual. Esta herramienta para PC proporciona una interfaz gráfica con una lista de varios cálculos comunes que van desde el (...)

Productos y hardware compatibles
Herramienta de diseño

ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
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Diseño de referencia

TIDA-01526 — Medición de temperatura de alta precisión para el diseño de referencia de medidores de calor y frío

Este diseño de referencia implementa un subsistema de medición diferencial de temperatura (DTM) de alta precisión utilizando un ADC delta-sigma de 24 bits y baja potencia. Los subsistemas de medición diferencial de temperatura (DTM) de calor y frío suelen utilizar dos detectores de temperatura de (...)
Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
TSSOP (PW) 16 Ultra Librarian
WQFN (RTE) 16 Ultra Librarian

Pedidos y calidad

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Soporte y capacitación

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El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene alguna pregunta sobre calidad, encapsulados o pedido de productos de TI, consulte el servicio de asistencia de TI. ​​​​​​​​​​​​​​

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