ADS7142-Q1

ACTIVO

ADC de 2 canales, 12 bits y 140 kSPS compatible con I2C para automoción con umbral programable y act

Detalles del producto

Resolution (Bits) 12 Sample rate (max) (ksps) 140 Number of input channels 2 Interface type I2C Architecture SAR Input type Pseudo-Differential, Single-ended Multichannel configuration Multiplexed Rating Automotive TI functional safety category Functional Safety-Capable Reference mode Supply Input voltage range (max) (V) 3.6 Input voltage range (min) (V) 0 Features Comparator, Oscillator, Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 0.0009 Analog supply voltage (min) (V) 1.65 Analog supply voltage (max) (V) 3.6 SNR (dB) 71.5 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
Resolution (Bits) 12 Sample rate (max) (ksps) 140 Number of input channels 2 Interface type I2C Architecture SAR Input type Pseudo-Differential, Single-ended Multichannel configuration Multiplexed Rating Automotive TI functional safety category Functional Safety-Capable Reference mode Supply Input voltage range (max) (V) 3.6 Input voltage range (min) (V) 0 Features Comparator, Oscillator, Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 0.0009 Analog supply voltage (min) (V) 1.65 Analog supply voltage (max) (V) 3.6 SNR (dB) 71.5 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
WSON (DQC) 10 6 mm² (3 mm × 2 mm)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Small package size: 3 mm × 2 mm
  • 12-bit noise-free resolution
  • Up to 140-kSPS sampling rate
  • Efficient host sleep and wake-up:
    • Autonomous monitoring at 900 nW
    • Windowed comparator for event-triggered host wake-up
  • Independent configuration and calibration:
    • Dual-channel, pseudo-differential, or ground-sense input configuration
    • Programmable thresholds for calibration
    • Internal calibration improves offset and drift
  • False trigger prevention:
    • Programmable thresholds per channel
    • Programmable hysteresis for noise immunity
    • Event counter for transient rejection
  • I2C interface:
    • Compatible from 1.65 V to 3.6 V
    • 8 configurable addresses
    • Up to 3.4 MHz (high speed)
  • Analog supply: 1.65 V to 3.6 V
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Small package size: 3 mm × 2 mm
  • 12-bit noise-free resolution
  • Up to 140-kSPS sampling rate
  • Efficient host sleep and wake-up:
    • Autonomous monitoring at 900 nW
    • Windowed comparator for event-triggered host wake-up
  • Independent configuration and calibration:
    • Dual-channel, pseudo-differential, or ground-sense input configuration
    • Programmable thresholds for calibration
    • Internal calibration improves offset and drift
  • False trigger prevention:
    • Programmable thresholds per channel
    • Programmable hysteresis for noise immunity
    • Event counter for transient rejection
  • I2C interface:
    • Compatible from 1.65 V to 3.6 V
    • 8 configurable addresses
    • Up to 3.4 MHz (high speed)
  • Analog supply: 1.65 V to 3.6 V

The ADS7142-Q1 is a 12-bit, 140-kSPS successive-approximation register (SAR) analog-to-digital converter (ADC) that can autonomously monitor signals while maximizing system power, reliability, and performance. The device implements event-triggered interrupts per channel using a digital window comparator with programmable high and low thresholds, hysteresis, and event counter. The device includes a dual-channel analog multiplexer in front of a SAR ADC followed by an internal data buffer for converting and capturing data from sensors.

The ADS7142-Q1 is available in a 10-pin WSON package and can achieve low power consumption of only 900 nW. The small form-factor and low-power consumption make this device designed for space-constrained applications.

The ADS7142-Q1 is a 12-bit, 140-kSPS successive-approximation register (SAR) analog-to-digital converter (ADC) that can autonomously monitor signals while maximizing system power, reliability, and performance. The device implements event-triggered interrupts per channel using a digital window comparator with programmable high and low thresholds, hysteresis, and event counter. The device includes a dual-channel analog multiplexer in front of a SAR ADC followed by an internal data buffer for converting and capturing data from sensors.

The ADS7142-Q1 is available in a 10-pin WSON package and can achieve low power consumption of only 900 nW. The small form-factor and low-power consumption make this device designed for space-constrained applications.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos ADS7142-Q1 Automotive, 2-Channel, 12-Bit, 140-kSPS, I2C-Compatible ADC With Programmable Threshold and Host Wake-Up Features datasheet (Rev. B) PDF | HTML 16/09/2022
Guía del usuario BOOSTXL-ADS7142-Q1 BoosterPack™ Plug-In Module (Rev. B) PDF | HTML 9/06/2021
Información sobre seguridad funcional ADS7142-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 6/10/2020
Artículo técnico How an automotive ADC can help designers achieve functional safety in ADAS PDF | HTML 9/06/2020

Diseño y desarrollo

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