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Convertidores analógico-digitales (ADC)
ADC de precisión

ADS1283

ACTIVO

ADC delta-sigma de ultra alta resolución, 4 kSPS y 2 canales con PGA para exploración sísmica y ener

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ADS1283

ACTIVO
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Detalles del producto

Resolution (Bits) 31 Sample rate (max) (ksps) 4 Number of input channels 2 Interface type SPI Architecture Delta-Sigma Input type Differential Multichannel configuration Multiplexed Rating Catalog Reference mode External Input voltage range (max) (V) 1.15, 3.75 Input voltage range (min) (V) -1.9, 0.7 Features PGA Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 18 Analog supply voltage (min) (V) -2.5, 0 Analog supply voltage (max) (V) 2.5, 5 SNR (dB) 130 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
Resolution (Bits) 31 Sample rate (max) (ksps) 4 Number of input channels 2 Interface type SPI Architecture Delta-Sigma Input type Differential Multichannel configuration Multiplexed Rating Catalog Reference mode External Input voltage range (max) (V) 1.15, 3.75 Input voltage range (min) (V) -1.9, 0.7 Features PGA Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 18 Analog supply voltage (min) (V) -2.5, 0 Analog supply voltage (max) (V) 2.5, 5 SNR (dB) 130 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
VQFN (RHF) 24 20 mm² 5 x 4
  • High Resolution:
    • SNR: 130 dB (250 SPS, PGA = 1)
  • High Accuracy:
    • THD: –122 dB
  • Low Power Consumption:
    • 18 mW (PGA = 1, 2, 4, or 8)
    • Shutdown Mode: 10 µW
  • Low-Noise PGA: 5 nV/√Hz
  • Two-Channel Input Multiplexer
  • Inherently-Stable Modulator With Fast Responding Overrange Detector
  • Flexible Digital Filter:
    • Sinc + FIR + IIR (Selectable)
    • Linear or Minimum Phase Response
    • Programmable High-Pass Filter
    • Selectable FIR Data Rates:
      250 SPS to 4 kSPS
  • Offset and Gain Calibration Engine
  • SYNC Input
  • Analog Supply: 5 V or ±2.5 V
  • Digital Supply: 1.8 V to 3.3 V
  • High Resolution:
    • SNR: 130 dB (250 SPS, PGA = 1)
  • High Accuracy:
    • THD: –122 dB
  • Low Power Consumption:
    • 18 mW (PGA = 1, 2, 4, or 8)
    • Shutdown Mode: 10 µW
  • Low-Noise PGA: 5 nV/√Hz
  • Two-Channel Input Multiplexer
  • Inherently-Stable Modulator With Fast Responding Overrange Detector
  • Flexible Digital Filter:
    • Sinc + FIR + IIR (Selectable)
    • Linear or Minimum Phase Response
    • Programmable High-Pass Filter
    • Selectable FIR Data Rates:
      250 SPS to 4 kSPS
  • Offset and Gain Calibration Engine
  • SYNC Input
  • Analog Supply: 5 V or ±2.5 V
  • Digital Supply: 1.8 V to 3.3 V

The ADS1283 is an extremely high-performance, single-chip, analog-to-digital converter (ADC) with an integrated, low-noise programmable gain amplifier (PGA) and two-channel input multiplexer (mux). The ADS1283 is suitable for the demanding needs of seismic monitoring equipment.

The converter uses a fourth-order, inherently stable, delta-sigma (ΔΣ) modulator that provides outstanding noise and linearity performance. The modulator digital output is digitally filtered and decimated by the on-chip digital filter to yield the ADC conversion result.

The flexible input mux provides an additional external input for measurement, as well as internal self-test input connections. The PGA features outstanding low noise (5 nV/√Hz) and very-high input impedance, allowing easy interfacing to geophones and hydrophones over a wide range of gains.

The digital filter provides selectable data rates from 250 to 4000 samples per second (SPS). The high-pass filter (HPF) features an adjustable corner frequency. On-chip gain and offset scaling registers support system calibration.

The synchronization input (SYNC) can be used to synchronize the conversions of multiple ADS1283 devices.

The ADS1283 is available in a compact 24-lead, 5-mm × 4-mm VQFN package, and is fully specified from –40°C to +85°C, with a maximum operating temperature range of –50°C to +125°C.

The ADS1283 is an extremely high-performance, single-chip, analog-to-digital converter (ADC) with an integrated, low-noise programmable gain amplifier (PGA) and two-channel input multiplexer (mux). The ADS1283 is suitable for the demanding needs of seismic monitoring equipment.

The converter uses a fourth-order, inherently stable, delta-sigma (ΔΣ) modulator that provides outstanding noise and linearity performance. The modulator digital output is digitally filtered and decimated by the on-chip digital filter to yield the ADC conversion result.

The flexible input mux provides an additional external input for measurement, as well as internal self-test input connections. The PGA features outstanding low noise (5 nV/√Hz) and very-high input impedance, allowing easy interfacing to geophones and hydrophones over a wide range of gains.

The digital filter provides selectable data rates from 250 to 4000 samples per second (SPS). The high-pass filter (HPF) features an adjustable corner frequency. On-chip gain and offset scaling registers support system calibration.

The synchronization input (SYNC) can be used to synchronize the conversions of multiple ADS1283 devices.

The ADS1283 is available in a compact 24-lead, 5-mm × 4-mm VQFN package, and is fully specified from –40°C to +85°C, with a maximum operating temperature range of –50°C to +125°C.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet ADS1283 High-Resolution, Analog-to-Digital Converter datasheet (Rev. C) PDF | HTML 27 ago 2019
Application note Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) PDF | HTML 18 mar 2024
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 dic 2023
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

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.

Modelo de simulación

ADS1283 IBIS Model

SBAM368.ZIP (135 KB) - IBIS Model
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VQFN (RHF) 24 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

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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