Inicio Convertidores de datos Convertidores analógico-digitales (ADC) ADC de precisión
Inicio
Convertidores de datos
Convertidores analógico-digitales (ADC)
ADC de precisión

ADS125H02

ACTIVO

ADC delta-sigma de 24 bits, 40 kSPS, 2 canales con entrada ±20 V, PGA, IDAC, GPIO y VREF

Haga su pedido ahora
Hoja de datos

ADS125H02

ACTIVO
Hoja de datos Haga su pedido ahora

Detalles del producto

Resolution (Bits) 24 Sample rate (max) (ksps) 40 Number of input channels 2 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) 15.5 Input voltage range (min) (V) 0 Features 50/60 Hz Rejection, Excitation Current Sources (iDACs), GPIO, Oscillator, PGA, Temp Sensor Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 45 Analog supply voltage (min) (V) -18, 0 Analog supply voltage (max) (V) 18, 36 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
Resolution (Bits) 24 Sample rate (max) (ksps) 40 Number of input channels 2 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) 15.5 Input voltage range (min) (V) 0 Features 50/60 Hz Rejection, Excitation Current Sources (iDACs), GPIO, Oscillator, PGA, Temp Sensor Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 45 Analog supply voltage (min) (V) -18, 0 Analog supply voltage (max) (V) 18, 36 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
VQFN (RHB) 32 25 mm² (5 mm × 5 mm)
  • ±20-V input, 24-bit delta-sigma ADC
  • Programmable data rate: 2.5 SPS to 40 kSPS
  • High-voltage, high-impedance PGA:
    • Differential input range: up to ±20 V
    • Programmable gain: 0.125 to 128
    • Common-mode input voltage: up to ±15.5 V
    • Input impedance: 1 GΩ (minimum)
  • High-performance ADC:
    • Input noise: 45 nVRMS (20 SPS)
    • CMRR: 105 dB
    • Normal-mode rejection at 50 Hz, 60 Hz: 95 dB
    • Offset drift: 5 nV/°C
    • Gain drift: 1 ppm/°C
    • INL: 2 ppm
  • Integrated features and diagnostics:
    • 2.5-V reference: 3 ppm/°C drift
    • Clock oscillator: 2.5% error (maximum)
    • Excitation current sources
    • GPIO to drive external mux
    • Signal and reference voltage monitors
    • Cyclic redundancy check (CRC)
  • Power supplies:
    • AVDD: 4.75 V to 5.25 V
    • DVDD: 2.7 V to 5.25 V
    • HVDD: ±5 V to ±18 V
  • Operating temperature: –40°C to +125°C
  • 5-mm × 5-mm VQFN package
  • ±20-V input, 24-bit delta-sigma ADC
  • Programmable data rate: 2.5 SPS to 40 kSPS
  • High-voltage, high-impedance PGA:
    • Differential input range: up to ±20 V
    • Programmable gain: 0.125 to 128
    • Common-mode input voltage: up to ±15.5 V
    • Input impedance: 1 GΩ (minimum)
  • High-performance ADC:
    • Input noise: 45 nVRMS (20 SPS)
    • CMRR: 105 dB
    • Normal-mode rejection at 50 Hz, 60 Hz: 95 dB
    • Offset drift: 5 nV/°C
    • Gain drift: 1 ppm/°C
    • INL: 2 ppm
  • Integrated features and diagnostics:
    • 2.5-V reference: 3 ppm/°C drift
    • Clock oscillator: 2.5% error (maximum)
    • Excitation current sources
    • GPIO to drive external mux
    • Signal and reference voltage monitors
    • Cyclic redundancy check (CRC)
  • Power supplies:
    • AVDD: 4.75 V to 5.25 V
    • DVDD: 2.7 V to 5.25 V
    • HVDD: ±5 V to ±18 V
  • Operating temperature: –40°C to +125°C
  • 5-mm × 5-mm VQFN package

The ADS125H02 is a ±20-V input, 24-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC). The ADC features a low-noise programmable gain amplifier (PGA), an internal reference, clock oscillator, and signal or reference out-of-range monitors.

The integration of a wide input range, ±18-V PGA and an ADC into a single package reduces board area up to 50% compared to discrete solutions.

Programmable gain of 0.125 to 128 (corresponding to an equivalent input range from ±20 V to ±20 mV) eliminates the need for an external attenuator or external gain stages. 1-GΩ minimum input impedance reduces error caused by sensor loading. Additionally, the low noise and low drift performance allow direct connections to bridge, resistance temperature detector (RTD), and thermocouple sensors.

The digital filter attenuates 50-Hz and 60-Hz line cycle noise for data rates ≤ 50 SPS or 60 SPS to reduce measurement error. The filter also provides no-latency conversion data for high data throughput during channel sequencing.

The ADS125H02 is housed in a 5-mm × 5-mm VQFN package and is fully specified over the –40°C to +125°C temperature range.

The ADS125H02 is a ±20-V input, 24-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC). The ADC features a low-noise programmable gain amplifier (PGA), an internal reference, clock oscillator, and signal or reference out-of-range monitors.

The integration of a wide input range, ±18-V PGA and an ADC into a single package reduces board area up to 50% compared to discrete solutions.

Programmable gain of 0.125 to 128 (corresponding to an equivalent input range from ±20 V to ±20 mV) eliminates the need for an external attenuator or external gain stages. 1-GΩ minimum input impedance reduces error caused by sensor loading. Additionally, the low noise and low drift performance allow direct connections to bridge, resistance temperature detector (RTD), and thermocouple sensors.

The digital filter attenuates 50-Hz and 60-Hz line cycle noise for data rates ≤ 50 SPS or 60 SPS to reduce measurement error. The filter also provides no-latency conversion data for high data throughput during channel sequencing.

The ADS125H02 is housed in a 5-mm × 5-mm VQFN package and is fully specified over the –40°C to +125°C temperature range.
filter Buscar otro/a ADC de precisión
Descargar Ver vídeo con transcripción Video

Productos similares que pueden interesarle

open-in-new Comparar alternativas
Pin por pin con la misma funcionalidad que el dispositivo comparado
ADS125H01 ACTIVO ADC delta-sigma de 24 bits, 40 kSPS y 1 canal con PGA de bajo ruido y entrada de ±20 V Lower channel count (1)
Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
NUEVO ADS125H18 ACTIVO ADC sigma-delta de 16 canales, 24 bits y 1 MSPS con entradas de alta tensión (±10 V) que utiliza Increased channel count and common-mode voltage range with additional features including channel sequencer and FIFO.

Documentación técnica

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 16
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos ADS125H02 ±20-V Input, 2-Channel, 40-kSPS, 24-Bit, Delta-Sigma ADC With PGA and Voltage Reference datasheet (Rev. C) PDF | HTML 17/06/2019
Nota sobre la aplicación A Simple, Java-Based CRC Calculator PDF | HTML 4/03/2026
Circuit design Precision, ±15V Power Supply Circuit from a +5V Source for High-Voltage Data Converters PDF | HTML 4/12/2025
Nota sobre la aplicación K-type thermocouple measurement circuit with precision ADC (Rev. A) PDF | HTML 20/09/2024
Circuit design 4-Ch, diff. in., DAQ front-end circuit w/ configurable voltage & current inputs (Rev. A) PDF | HTML 19/09/2024
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
Product overview PLC Analog Input Front-End Architectures PDF | HTML 31/07/2022
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 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 Simplified ±10 V Analog Input Module Using the ADS125H02 8/05/2019

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

ADS125H02EVM — Módulo de evaluación ADS125H02

El módulo de evaluación (EVM) ADS125H02 es una plataforma para evaluar el convertidor analógico a digital (ADC) ADS125H02. El ADS125H02 es un ADC sigma-delta (ΔΣ) de amplio rango de entrada, 24 bits, 19.2 kSPS, con PGA integrado, referencia de tensión y monitores de fallos internos. La tensión de (...)

Guía del usuario: PDF
Productos y hardware compatibles
Soporte de software

ADS125H02-C-EXAMPLE-CODE — ADS125H02 example C code

Expedite your embedded design using this example C code for the ADS125H02
Productos y hardware compatibles
Modelo de simulación

ADS125H0X IBIS Model

SBAM384.ZIP (65 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

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 cálculo

SBAC234 — ADS125H02 Design Calculator

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
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RHB) 32 Ultra Librarian
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

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

Ver todos los temas del foro en inglés

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. ​​​​​​​​​​​​​​

Videos