ADS1220

ACTIVO

ADC delta-sigma de 24 bits, 2 kSPS, 4 canales, baja potencia, con PGA, VREF, SPI y 2 IDAC.

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NUEVO ADS122S14 ACTIVO ADC delta-sigma de 24 bits y 64 kSPS de ocho canales con PGA, VREF, dos IDAC y SPI 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 SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal, Supply 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, 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 SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal, Supply 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, 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
VQFN (RVA) 16 12.25 mm² (3.5 mm × 3.5 mm) TSSOP (PW) 16 32 mm² (5 mm × 6.4 mm)
  • Low current consumption:
    • As low as 120µA (typ) in duty-cycle mode
  • Wide supply range: 2.3V to 5.5V
  • Programmable gain: 1 to 128
  • Programmable data rates: Up to 2kSPS
  • Up to 20 Bits effective resolution
  • Simultaneous 50Hz and 60Hz rejection at 20SPS with single-cycle settling digital filter
  • Two differential or four single-ended inputs
  • Dual-matched programmable current sources:
    • 10µA to 1.5mA
  • Internal 2.048V reference: 5ppm/°C (typ) drift
  • Internal 2% accurate oscillator
  • Internal temperature sensor:
    • 0.5°C (typ) accuracy
  • SPI-compatible interface (mode 1)
  • Low current consumption:
    • As low as 120µA (typ) in duty-cycle mode
  • Wide supply range: 2.3V to 5.5V
  • Programmable gain: 1 to 128
  • Programmable data rates: Up to 2kSPS
  • Up to 20 Bits effective resolution
  • Simultaneous 50Hz and 60Hz rejection at 20SPS with single-cycle settling digital filter
  • Two differential or four single-ended inputs
  • Dual-matched programmable current sources:
    • 10µA to 1.5mA
  • Internal 2.048V reference: 5ppm/°C (typ) drift
  • Internal 2% accurate oscillator
  • Internal temperature sensor:
    • 0.5°C (typ) accuracy
  • SPI-compatible interface (mode 1)

The ADS1220 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, a low-side switch, 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 20SPS, the digital filter offers simultaneous 50Hz and 60Hz rejection for noisy industrial applications. The internal PGA offers gains up to 128. This PGA makes the ADS1220 designed for applications measuring small sensor signals, such as resistance temperature detectors (RTDs), thermocouples, thermistors, and resistive bridge sensors. The device supports measurements of pseudo- or fully-differential signals when using the PGA. Alternatively, the device can be configured to bypass the internal PGA while still providing high input impedance and gains up to 4, allowing for single-ended measurements.

Power consumption is as low as 120µA when operating in duty-cycle mode with the PGA disabled. The ADS1220 is offered in a leadless VQFN-16 or a TSSOP-16 package and is specified over a temperature range of –40°C to +125°C.

The ADS1220 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, a low-side switch, 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 20SPS, the digital filter offers simultaneous 50Hz and 60Hz rejection for noisy industrial applications. The internal PGA offers gains up to 128. This PGA makes the ADS1220 designed for applications measuring small sensor signals, such as resistance temperature detectors (RTDs), thermocouples, thermistors, and resistive bridge sensors. The device supports measurements of pseudo- or fully-differential signals when using the PGA. Alternatively, the device can be configured to bypass the internal PGA while still providing high input impedance and gains up to 4, allowing for single-ended measurements.

Power consumption is as low as 120µA when operating in duty-cycle mode with the PGA disabled. The ADS1220 is offered in a leadless VQFN-16 or a TSSOP-16 package and is specified over a temperature range of –40°C to +125°C.

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ADS1120 ACTIVO ADC delta-sigma de 16 bits, 2 kSPS, 4 canales, baja potencia y tamaño pequeño con PGA, VREF, 2x IDAC Reduced resolution (16 bit)

Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos ADS1220 4-Channel, 2kSPS, Low-Power, 24-Bit ADC With Integrated PGA and Reference datasheet (Rev. D) PDF | HTML 18/05/2026
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 QFN and SON PCB Attachment (Rev. C) PDF | HTML 6/12/2023
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
Artículo técnico Designing signal chains for portable diagnostics PDF | HTML 18/05/2022
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 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
Artículo técnico The real secret to become a better cook. Integrate smart scale technology in kitch PDF | HTML 25/10/2016
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

ADS1220EVM — Módulo de evaluación de ADS1220

The ADS1220 evaluation module (EVM) is a development platform for the ADS1220, which is a 24-bit, multichannel, delta-sigma (ΔΣ) analog-to-digital converter (ADC). The EVM uses the ADS1220 along with minimal circuitry to demonstrate functionality for prototyping and part evaluation.

The pins of the (...)

Guía del usuario: PDF
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En inventario
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Placa de evaluación

PLABS-SAR-EVM-PDK — Kit de demostración del rendimiento del módulo de evaluación ADC de TI Precision Labs (PDK)

PLABS-SAR-EVM-PDK es una plataforma experimental que se utiliza junto con los videos de Precision Labs de TI para adquirir una comprensión más profunda de los circuitos convertidores analógico a digital (ADC) de registro de aproximación sucesiva (SAR). La plataforma del módulo de evaluación (EVM) (...)

Guía del usuario: PDF
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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

ADS1220-C-EXAMPLE-CODE — ADS1220 Example Code

Expedite your embedded design using this example C code for the ADS1220 product family
Productos y hardware compatibles
Modelo de simulación

ADS1220 IBIS Model (Rev. A)

SBAM171A.ZIP (82 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 (...)

Productos y hardware compatibles
Herramienta de cálculo

ADS1220-EXCEL-CALC — ADS1220 Excel™ calculator

The ADS1220 Excel™ calculator provides several easy-to-use tools for understanding the ADS1220 operation and accelerating time to market.
Productos y hardware compatibles
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.
Productos y hardware compatibles

Muchos diseños de referencia de TI incluyen ADS1220

Utilice nuestra herramienta de selección de diseños de referencia para revisar e identificar los diseños que mejor se adaptan a su aplicación y parámetros.

Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RVA) 16 Ultra Librarian
TSSOP (PW) 16 Ultra Librarian

Pedidos y calidad

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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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