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Convertidores analógico-digitales (ADC)
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ADS1158

ACTIVO

ADC Delta-Sigma de 16 bits, 125 kSPS, 16 canales con barrido de canal rápido y secuenciador automáti

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ADS1158

ACTIVO
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Detalles del producto

Resolution (Bits) 16 Sample rate (max) (ksps) 125 Number of input channels 16 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External Input voltage range (max) (V) 2.85, 5.35 Input voltage range (min) (V) -2.7, 0 Features GPIO, Oscillator Operating temperature range (°C) -40 to 105 Power consumption (typ) (mW) 42 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.5 Digital supply (max) (V) 3.6
Resolution (Bits) 16 Sample rate (max) (ksps) 125 Number of input channels 16 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External Input voltage range (max) (V) 2.85, 5.35 Input voltage range (min) (V) -2.7, 0 Features GPIO, Oscillator Operating temperature range (°C) -40 to 105 Power consumption (typ) (mW) 42 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.5 Digital supply (max) (V) 3.6
VQFNP (RTC) 48 49 mm² (7 mm × 7 mm)
  • 16 Bits, No Missing Codes
  • Fixed-Channel or Automatic Channel Scan
  • Fixed-Channel Data Rate: 125kSPS
  • Auto-Scan Data Rate: 23.7kSPS/Channel
  • Single-Conversion Settled Data
  • 16 Single-Ended or 8 Differential Inputs
  • Unipolar (+5V) or Bipolar (±2.5V) Operation
  • 0.3LSB (INL)
  • DC Stability:
    1µV/°C Offset Drift, 2ppm/°C Gain Drift
  • Open-Sensor Detection
  • Conversion Control Pin
  • Multiplexer Output for External Signal Conditioning
  • On-Chip Temperature, Reference, Offset, Gain, and Supply Voltage Readback
  • 42mW Power Dissipation
  • Standby, Sleep, and Power-Down Modes
  • Eight General-Purpose Inputs/Outputs (GPIO)
  • 32.768kHz Crystal Oscillator or External Clock
  • APPLICATIONS
    • Medical, Avionics, and Process Control
    • Machine and System Monitoring
    • Fast Scan Multi-Channel Instrumentation
    • Industrial Systems
    • Test and Measurement Systems

    SPI is a trademark of Motorola, Inc.
    All other trademarks are the property of their respective owners.
    • 16 Bits, No Missing Codes
    • Fixed-Channel or Automatic Channel Scan
    • Fixed-Channel Data Rate: 125kSPS
    • Auto-Scan Data Rate: 23.7kSPS/Channel
    • Single-Conversion Settled Data
    • 16 Single-Ended or 8 Differential Inputs
    • Unipolar (+5V) or Bipolar (±2.5V) Operation
    • 0.3LSB (INL)
    • DC Stability:
      1µV/°C Offset Drift, 2ppm/°C Gain Drift
    • Open-Sensor Detection
    • Conversion Control Pin
    • Multiplexer Output for External Signal Conditioning
    • On-Chip Temperature, Reference, Offset, Gain, and Supply Voltage Readback
    • 42mW Power Dissipation
    • Standby, Sleep, and Power-Down Modes
    • Eight General-Purpose Inputs/Outputs (GPIO)
    • 32.768kHz Crystal Oscillator or External Clock
  • APPLICATIONS
    • Medical, Avionics, and Process Control
    • Machine and System Monitoring
    • Fast Scan Multi-Channel Instrumentation
    • Industrial Systems
    • Test and Measurement Systems

    SPI is a trademark of Motorola, Inc.
    All other trademarks are the property of their respective owners.

    The ADS1158 is a 16-channel (multiplexed), low-noise, 16-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC) that provides single-cycle settled data at channel scan rates from 1.8k to 23.7k samples per second (SPS) per channel. A flexible input multiplexer accepts combinations of eight differential or 16 single-ended inputs with a full-scale differential range of 5V or true bipolar range of ±2.5V when operating with a 5V reference. The fourth-order delta-sigma modulator is followed by a fifth-order sinc digital filter optimized for low-noise performance.

    The differential output of the multiplexer is accessible to allow signal conditioning before the input of the ADC. Internal system monitor registers provide supply voltage, temperature, reference voltage, gain, and offset data.

    An onboard PLL generates the system clock from a 32.768kHz crystal, or can be overridden by an external clock source. A buffered system clock output (15.7MHz) is provided to drive a microcontroller or additional converters.

    Serial digital communication is handled via an SPI™-compatible interface. A simple command word structure controls channel configuration, data rates, digital I/O, monitor functions, etc.

    Programmable sensor bias current sources can be used to bias sensors or verify sensor integrity.

    The ADS1158 operates from a unipolar +5V or bipolar ±2.5V analog supply and a digital supply compatible with interfaces ranging from 2.7V to 5.25V. The ADS1158 is available in a QFN-48 package.

    The ADS1158 is a 16-channel (multiplexed), low-noise, 16-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC) that provides single-cycle settled data at channel scan rates from 1.8k to 23.7k samples per second (SPS) per channel. A flexible input multiplexer accepts combinations of eight differential or 16 single-ended inputs with a full-scale differential range of 5V or true bipolar range of ±2.5V when operating with a 5V reference. The fourth-order delta-sigma modulator is followed by a fifth-order sinc digital filter optimized for low-noise performance.

    The differential output of the multiplexer is accessible to allow signal conditioning before the input of the ADC. Internal system monitor registers provide supply voltage, temperature, reference voltage, gain, and offset data.

    An onboard PLL generates the system clock from a 32.768kHz crystal, or can be overridden by an external clock source. A buffered system clock output (15.7MHz) is provided to drive a microcontroller or additional converters.

    Serial digital communication is handled via an SPI™-compatible interface. A simple command word structure controls channel configuration, data rates, digital I/O, monitor functions, etc.

    Programmable sensor bias current sources can be used to bias sensors or verify sensor integrity.

    The ADS1158 operates from a unipolar +5V or bipolar ±2.5V analog supply and a digital supply compatible with interfaces ranging from 2.7V to 5.25V. The ADS1158 is available in a QFN-48 package.
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    Documentación técnica

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    Ver todo 10
    Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
    * Hoja de datos 16-Channel, 16-Bit Analog-to-Digital Converter datasheet (Rev. D) 17/03/2011
    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 Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 29/03/2023
    Libro electrónico Fundamentals of Precision ADC Noise Analysis (Rev. A) 19/06/2020
    Analog Design Journal How delta-sigma ADCs work, Part 1 (Rev. A) 19/09/2016
    Libro electrónico Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 19/03/2015
    Nota sobre la aplicación ADS1258, ADS1258-EP, and ADS1158 SPI™ Timeout Function 20/04/2012
    Analog Design Journal How delta-sigma ADCs work, Part 2 9/11/2011

    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.

    Soporte de software

    ADS1258-C-EXAMPLE-CODE — ADS1258 Example C Code

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    Encapsulado Pines Símbolos CAD, huellas y modelos 3D
    VQFNP (RTC) 48 Ultra Librarian
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    Pedidos y calidad

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    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.

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