ADS1118-Q1

ACTIVO

ADC delta-sigma de 16 bits, 860 SPS, 4 canales para automoción con PGA, oscilador, VREF, sensor de t

Detalles del producto

Resolution (Bits) 16 Sample rate (max) (ksps) 0.86 Number of input channels 4 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Automotive TI functional safety category Functional Safety-Capable Reference mode Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Oscillator, PGA, Temp Sensor Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 0.3 Analog supply voltage (min) (V) 2 Analog supply voltage (max) (V) 5.5 Digital supply (min) (V) 2 Digital supply (max) (V) 5.5
Resolution (Bits) 16 Sample rate (max) (ksps) 0.86 Number of input channels 4 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Automotive TI functional safety category Functional Safety-Capable Reference mode Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Oscillator, PGA, Temp Sensor Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 0.3 Analog supply voltage (min) (V) 2 Analog supply voltage (max) (V) 5.5 Digital supply (min) (V) 2 Digital supply (max) (V) 5.5
VSSOP (DGS) 10 14.7 mm² 3 x 4.9
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Wide supply range: 2 V to 5.5 V
  • Low current consumption:
    • Continuous mode: only 150 µA
    • Single-shot mode: automatic power-down
  • Programmable data rate: 8 SPS to 860 SPS
  • Single-cycle settling
  • Internal low-drift voltage reference
  • Internal temperature sensor:
    2°C (maximum) error
  • Internal oscillator
  • Internal PGA
  • Four single-ended or two differential inputs
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Wide supply range: 2 V to 5.5 V
  • Low current consumption:
    • Continuous mode: only 150 µA
    • Single-shot mode: automatic power-down
  • Programmable data rate: 8 SPS to 860 SPS
  • Single-cycle settling
  • Internal low-drift voltage reference
  • Internal temperature sensor:
    2°C (maximum) error
  • Internal oscillator
  • Internal PGA
  • Four single-ended or two differential inputs

The ADS1118-Q1 is a precision, low power, 16-bit analog-to-digital converter (ADC) that provides all features necessary to measure the most common sensor signals. The ADS1118-Q1 integrates a programmable gain amplifier (PGA), voltage reference, oscillator, and high-accuracy temperature sensor. These features, along with a wide power-supply range from 2 V to 5.5 V, make the
ADS1118-Q1 ideally suited for power- and space-constrained, sensor-measurement applications.

The ADS1118-Q1 performs conversions at data rates up to 860 samples per second (SPS). The PGA offers input ranges from ±256 mV to ±6.144 V, allowing both large and small signals to be measured with high resolution. An input multiplexer (mux) allows measurement of two differential or four single-ended inputs. The high-accuracy temperature sensor is used for system-level temperature monitoring, or cold-junction compensation for thermocouples.

The ADS1118-Q1 operates either in continuous-conversion mode, or in a single-shot mode that automatically powers down after a conversion. Single-shot mode significantly reduces current consumption during idle periods. Data are transferred through a serial peripheral interface (SPI™). The ADS1118-Q1 is specified from –40°C to +125°C.

The ADS1118-Q1 is a precision, low power, 16-bit analog-to-digital converter (ADC) that provides all features necessary to measure the most common sensor signals. The ADS1118-Q1 integrates a programmable gain amplifier (PGA), voltage reference, oscillator, and high-accuracy temperature sensor. These features, along with a wide power-supply range from 2 V to 5.5 V, make the
ADS1118-Q1 ideally suited for power- and space-constrained, sensor-measurement applications.

The ADS1118-Q1 performs conversions at data rates up to 860 samples per second (SPS). The PGA offers input ranges from ±256 mV to ±6.144 V, allowing both large and small signals to be measured with high resolution. An input multiplexer (mux) allows measurement of two differential or four single-ended inputs. The high-accuracy temperature sensor is used for system-level temperature monitoring, or cold-junction compensation for thermocouples.

The ADS1118-Q1 operates either in continuous-conversion mode, or in a single-shot mode that automatically powers down after a conversion. Single-shot mode significantly reduces current consumption during idle periods. Data are transferred through a serial peripheral interface (SPI™). The ADS1118-Q1 is specified from –40°C to +125°C.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet ADS1118-Q1 Automotive, Low-Power, SPI-Compatible, 16-Bit Analog-to-Digital Converter With Internal Reference and Temperature Sensor datasheet (Rev. B) PDF | HTML 15 may 2020
Circuit design Precision measurement circuit with 8 different channels and SPI (Rev. A) PDF | HTML 19 sep 2024
Application note Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) PDF | HTML 18 mar 2024
Application note Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 29 mar 2023
E-book Fundamentals of Precision ADC Noise Analysis (Rev. A) 19 jun 2020
Functional safety information ADS1118-Q1 Functional Safety FIT Rate, Failure Mode Distribution and Pin FMA 11 mar 2020
Analog Design Journal How delta-sigma ADCs work, Part 1 (Rev. A) 19 sep 2016
Analog Design Journal How delta-sigma ADCs work, Part 2 09 nov 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.

Placa de evaluación

ADS1118EVM — Módulo de evaluación de ADC delta-sigma de ADS1118 de 16 bits, 860 SPS y 4 canales

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Guía del usuario: PDF
Soporte de software

ADS1118-C-EXAMPLE-CODE ADS1118 example C code

Expedite your embedded design using this example C code for the ADS1118
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Modelo de simulación

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Herramienta de cálculo

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Herramienta de simulación

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Diseños de referencia

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Design guide: PDF
Esquema: PDF
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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

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