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

ADS7028

ACTIVO

Convertidor analógico a digital (ADC) pequeño de 8 canales y 12 bits con SPI, GPIO y CRC

Haga su pedido ahora
Hoja de datos

ADS7028

ACTIVO
Hoja de datos Haga su pedido ahora

Detalles del producto

Resolution (Bits) 12 Sample rate (max) (ksps) 1000 Number of input channels 8 Interface type SPI Architecture SAR Input type Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode Supply Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Comparator, GPIO, Oscillator, Small Size Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 5 Analog supply voltage (min) (V) 2.35 Analog supply voltage (max) (V) 5.5 SNR (dB) 73.1 Digital supply (min) (V) 1.65 Digital supply (max) (V) 5.5
Resolution (Bits) 12 Sample rate (max) (ksps) 1000 Number of input channels 8 Interface type SPI Architecture SAR Input type Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode Supply Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Comparator, GPIO, Oscillator, Small Size Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 5 Analog supply voltage (min) (V) 2.35 Analog supply voltage (max) (V) 5.5 SNR (dB) 73.1 Digital supply (min) (V) 1.65 Digital supply (max) (V) 5.5
WQFN (RTE) 16 9 mm² 3 x 3
  • Small package size:
    • WQFN 3 mm × 3 mm
  • 8 channels configurable as any combination of:
    • Up to 8 analog inputs, digital inputs, or digital outputs
  • GPIOs for I/O expansion:
    • Open-drain, push-pull digital outputs
  • Analog watchdog:
    • Programmable thresholds per channel
    • Event counter for transient rejection
  • Wide operating ranges:
    • AVDD: 2.35 V to 5.5 V
    • DVDD: 1.65 V to 5.5 V
    • –40°C to +85°C temperature range
  • Enhanced-SPI digital interface:
    • High-speed, 60-MHz interface
    • Achieve full throughput with >13.5-MHz SPI
  • CRC for read/write operation:
    • CRC on data read/write
    • CRC on power-up configuration
  • Programmable averaging filters
  • Root-mean-square module:
    • 16-bit true RMS output
    • Programmable RMS time window
  • Zero-crossing-detect module:
    • ZCD output corresponding to analog input
    • Built-in transient rejection and hysteresis
    • Digitally adjustable detection threshold
  • Small package size:
    • WQFN 3 mm × 3 mm
  • 8 channels configurable as any combination of:
    • Up to 8 analog inputs, digital inputs, or digital outputs
  • GPIOs for I/O expansion:
    • Open-drain, push-pull digital outputs
  • Analog watchdog:
    • Programmable thresholds per channel
    • Event counter for transient rejection
  • Wide operating ranges:
    • AVDD: 2.35 V to 5.5 V
    • DVDD: 1.65 V to 5.5 V
    • –40°C to +85°C temperature range
  • Enhanced-SPI digital interface:
    • High-speed, 60-MHz interface
    • Achieve full throughput with >13.5-MHz SPI
  • CRC for read/write operation:
    • CRC on data read/write
    • CRC on power-up configuration
  • Programmable averaging filters
  • Root-mean-square module:
    • 16-bit true RMS output
    • Programmable RMS time window
  • Zero-crossing-detect module:
    • ZCD output corresponding to analog input
    • Built-in transient rejection and hysteresis
    • Digitally adjustable detection threshold

The ADS7028 is an easy-to-use, 8-channel, multiplexed, 12-bit, 1-MSPS, successive approximation register analog-to-digital converter (SAR ADC). The eight channels can be independently configured as either analog inputs, digital inputs, or digital outputs. The device has an internal oscillator for the ADC conversion process.

The ADS7028 communicates through an SPI-compatible interface and operates in either autonomous or single-shot conversion mode. The ADS7028 implements the analog watchdog function by event-triggered interrupts per channel using a digital window comparator with programmable high and low thresholds, hysteresis, and an event counter. The ADS7028 has a built-in cyclic redundancy check (CRC) for data read/write operations and the power-up configuration. The ADS7028 features a root-mean-square (RMS) module that computes a 16-bit true RMS result for any analog input channel. The integrated zero-crossing-detect (ZCD) module allows for transient rejection and hysteresis near the configurable threshold crossings.

The ADS7028 is an easy-to-use, 8-channel, multiplexed, 12-bit, 1-MSPS, successive approximation register analog-to-digital converter (SAR ADC). The eight channels can be independently configured as either analog inputs, digital inputs, or digital outputs. The device has an internal oscillator for the ADC conversion process.

The ADS7028 communicates through an SPI-compatible interface and operates in either autonomous or single-shot conversion mode. The ADS7028 implements the analog watchdog function by event-triggered interrupts per channel using a digital window comparator with programmable high and low thresholds, hysteresis, and an event counter. The ADS7028 has a built-in cyclic redundancy check (CRC) for data read/write operations and the power-up configuration. The ADS7028 features a root-mean-square (RMS) module that computes a 16-bit true RMS result for any analog input channel. The integrated zero-crossing-detect (ZCD) module allows for transient rejection and hysteresis near the configurable threshold crossings.
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
ADS7128 ACTIVO Convertidor analógico a digital (ADC) pequeño de 8 canales y 12 bits con interfaz I2C, GPIO, CRC y m Smaller sample rate (140kSPS), I2C interface
TLA2518 ACTIVO Convertidor analógico a digital (ADC) pequeño de 8 canales y 12 bits con interfaz SPI y GPIO Reduced performance; typical specifications only

Documentación técnica

star =Principal documentación para este producto seleccionada por TI
No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 6
Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet ADS7028 Small, 8-Channel, 12-Bit ADC with SPI Interface, GPIOs, and CRC datasheet (Rev. A) PDF | HTML 30 abr 2020
Application note A Simple, Java-Based CRC Calculator PDF | HTML 04 mar 2026
Application brief ADS7x28 True Root-Mean-Square Module PDF | HTML 06 feb 2023
Application brief Resolution-Boosting ADS7138 Using Programmable Averaging Filter 01 dic 2019
User guide BP-ADS7128 BoosterPack™ Plug-In Module User's Guide 21 may 2019
Application brief Zero-Crossing Detection with False Trigger Avoidance 09 ene 2019

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

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