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Convertidores analógico-digitales (ADC)
ADC de precisión

ADS1262

ACTIVO

ADC delta-sigma de 32 bits, 38 kSPS, 10 canales con PGA y referencia de tensión para la automatizaci

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ADS1262

ACTIVO
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Detalles del producto

Resolution (Bits) 32 Sample rate (max) (ksps) 38 Number of input channels 10 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) 2.5, 5 Input voltage range (min) (V) -2.5, 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) 27 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
Resolution (Bits) 32 Sample rate (max) (ksps) 38 Number of input channels 10 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) 2.5, 5 Input voltage range (min) (V) -2.5, 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) 27 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
TSSOP (PW) 28 62.08 mm² 9.7 x 6.4
  • Precision, 32-bit, ΔΣ ADC
  • Auxiliary 24-bit, ΔΣ ADC (ADS1263)
  • Data rates: 2.5 SPS to 38400 SPS
  • Differential input, CMOS PGA
  • 11 multifunction analog inputs
  • High-accuracy architecture:
    • Offset drift: 1 nV/°C
    • Gain drift: 0.5 ppm/°C
    • Noise: 7 nVRMS (2.5 SPS, gain = 32)
    • Linearity: 3 ppm
  • 2.5-V internal voltage reference:
    • Temperature drift: 2 ppm/°C
  • 50-Hz and 60-Hz rejection
  • Single-cycle settled conversions
  • Dual sensor excitation current sources
  • Internal fault monitors
  • Internal ADC test signal
  • 8 general-purpose inputs/outputs
  • Precision, 32-bit, ΔΣ ADC
  • Auxiliary 24-bit, ΔΣ ADC (ADS1263)
  • Data rates: 2.5 SPS to 38400 SPS
  • Differential input, CMOS PGA
  • 11 multifunction analog inputs
  • High-accuracy architecture:
    • Offset drift: 1 nV/°C
    • Gain drift: 0.5 ppm/°C
    • Noise: 7 nVRMS (2.5 SPS, gain = 32)
    • Linearity: 3 ppm
  • 2.5-V internal voltage reference:
    • Temperature drift: 2 ppm/°C
  • 50-Hz and 60-Hz rejection
  • Single-cycle settled conversions
  • Dual sensor excitation current sources
  • Internal fault monitors
  • Internal ADC test signal
  • 8 general-purpose inputs/outputs

The ADS1262 and ADS1263 (ADS126x) are low-noise, low-drift, 38.4-kSPS, delta-sigma (ΔΣ) ADCs with an integrated PGA, reference, and internal fault monitors. The ADS1263 integrates an auxiliary, 24-bit, ΔΣ ADC intended for background measurements. The sensor-ready ADCs provide complete, high-accuracy, one-chip measurement solutions for the most-demanding sensor applications, including weigh scales, strain-gauge sensors, thermocouples, and resistance temperature devices (RTD).

The ADCs are comprised of a low-noise, CMOS PGA (gains 1 to 32), a ΔΣ modulator, followed by a programmable digital filter. The flexible analog front-end (AFE) incorporates two sensor-excitation current sources suitable for direct RTD measurement.

A single-cycle settling digital filter maximizes multiple-input conversion throughput, while providing 130-dB rejection of 50-Hz and 60-Hz line cycle interference.

The ADS1262 and ADS1263 are pin and functional compatible. These devices are available in a 28-pin TSSOP package and are fully specified over the –40°C to +125°C temperature range.

The ADS1262 and ADS1263 (ADS126x) are low-noise, low-drift, 38.4-kSPS, delta-sigma (ΔΣ) ADCs with an integrated PGA, reference, and internal fault monitors. The ADS1263 integrates an auxiliary, 24-bit, ΔΣ ADC intended for background measurements. The sensor-ready ADCs provide complete, high-accuracy, one-chip measurement solutions for the most-demanding sensor applications, including weigh scales, strain-gauge sensors, thermocouples, and resistance temperature devices (RTD).

The ADCs are comprised of a low-noise, CMOS PGA (gains 1 to 32), a ΔΣ modulator, followed by a programmable digital filter. The flexible analog front-end (AFE) incorporates two sensor-excitation current sources suitable for direct RTD measurement.

A single-cycle settling digital filter maximizes multiple-input conversion throughput, while providing 130-dB rejection of 50-Hz and 60-Hz line cycle interference.

The ADS1262 and ADS1263 are pin and functional compatible. These devices are available in a 28-pin TSSOP package and are fully specified over the –40°C to +125°C temperature range.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet ADS126x 32-Bit, Precision, 38-kSPS, Analog-to-Digital Converter (ADC) with Programmable Gain Amplifier (PGA) and Voltage Reference datasheet (Rev. C) PDF | HTML 25 may 2021
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 mar 2024
Application note A Basic Guide to Bridge Measurements (Rev. A) PDF | HTML 13 mar 2024
Application note A Basic Guide to RTD Measurements (Rev. A) PDF | HTML 29 mar 2023
Application note A Basic Guide to Thermocouple Measurements (Rev. A) PDF | HTML 29 mar 2023
Application note Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 29 mar 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 ago 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
White paper Integrated diagnostics apply system reliability features at the ADC device level 26 may 2015
E-book Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 19 mar 2015
Analog Design Journal How delta-sigma ADCs work, Part 2 09 nov 2011
Application note Delta-Sigma ADC Design for Bridge Sensor Applications 30 sep 2011

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.

Kit de desarrollo

ADS1263EVM-PDK — Kit de demostración de rendimiento ADS1263

El kit de demostración de rendimiento (PDK) del módulo de evaluación (EVM) ADS1263 funciona como una plataforma para la evaluación del convertidor analógico-digital (ADC) ADS1263. El ADS1263 es un ADC delta-sigma de 32 bits (y 24 bits auxiliares) de bajo ruido y deriva para aplicaciones (...)

Guía del usuario: PDF | HTML
No disponible en TI.com
Soporte de software

ADS1262-C-EXAMPLE-CODE — ADS1262 example C code

Expedite your embedded design using this example C code for the ADS1262 product family
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Soporte de software

ADS126X-CALC-TOOL — ADS1262/ADS1263 Excel Calculator Tool

The ADS1262-ADS1263 Excel calculator provides the user with several easy-to-use tools to help simplify the configuration of the ADS1262 and ADS1263. This calculator also provides valuable information to help the user understand frequency and settling time requirements as well as validate output (...)

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Modelo de simulación

ADS1262 IBIS Model

SBAM246.ZIP (90 KB) - IBIS Model
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Herramienta de cálculo

ADC-DESIGN-CALC — Online design calculator tool for TI Precision ADCs

ADC-DESIGN-CALC is an online resource with multiple ADC calculator tools (such as Digital Filter Response, Code-to-Voltage, CMR, CRC, etc.) for TI Precision ADCs.
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ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

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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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Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® para TI es un entorno de diseño y simulación que ayuda a evaluar la funcionalidad de los circuitos analógicos. Esta completa suite de diseño y simulación utiliza un motor de análisis analógico de Cadence®. Disponible sin ningún costo, PSpice para TI incluye una de las bibliotecas de modelos (...)
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TINA-TI — Programa de simulación analógica basado en SPICE

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
Guía del usuario: PDF
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This precision weigh-scale reference design achieves greater than 50,000 noise-free counts of resolution. Offset and offset drift errors are nearly eliminated by ac bridge excitation. This design takes advantage of the high-resolution ADS1262 delta-sigma ADC.
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
TSSOP (PW) 28 Ultra Librarian
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL)/reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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

Soporte y capacitación

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