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Precision ADCs (<=10MSPS)

ADS7142-Q1

ACTIVE

Automotive 2-channel 12-bit 140-kSPS I2C-compatible ADC with programmable threshold and host wake-up

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Data sheet

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ADS1015-Q1 ACTIVE Automotive 12-bit, 3.3-kSPS, 4-ch, delta-sigma ADC with PGA, oscillator, VREF, comparator and I2C Intefrated PGA, Vref, I2C, 4-channel ADC

ADS7142-Q1

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 12 Number of input channels 2 Sample rate (Max) (kSPS) 140 Interface type I2C Architecture SAR Input type Pseudo-Differential, Single-Ended Multi-channel configuration Multiplexed Rating Automotive TI functional safety category Functional Safety-Capable Reference mode Supply Input range (Max) (V) 3.6 Input range (Min) (V) 0 Features Comparator, Oscillator, Small Size Operating temperature range (C) -40 to 125 Power consumption (Typ) (mW) 0.0009 Analog voltage AVDD (Min) (V) 1.65 SNR (dB) 71.5 Analog voltage AVDD (Max) (V) 3.6 INL (Max) (+/-LSB) 1 Digital supply (Min) (V) 1.65 Digital supply (Max) (V) 3.6
Resolution (Bits) 12 Number of input channels 2 Sample rate (Max) (kSPS) 140 Interface type I2C Architecture SAR Input type Pseudo-Differential, Single-Ended Multi-channel configuration Multiplexed Rating Automotive TI functional safety category Functional Safety-Capable Reference mode Supply Input range (Max) (V) 3.6 Input range (Min) (V) 0 Features Comparator, Oscillator, Small Size Operating temperature range (C) -40 to 125 Power consumption (Typ) (mW) 0.0009 Analog voltage AVDD (Min) (V) 1.65 SNR (dB) 71.5 Analog voltage AVDD (Max) (V) 3.6 INL (Max) (+/-LSB) 1 Digital supply (Min) (V) 1.65 Digital supply (Max) (V) 3.6
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WSON (DQC) 10 6 mm² 3 x 2
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  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1:
      –40°C to 125°C, TA
  • 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:
    • Device temperature grade 1:
      –40°C to 125°C, TA
  • 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
open-in-new Find other Precision ADCs (<=10MSPS)

The ADS7142-Q1 is 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 suitable for space-constrained applications.

The ADS7142-Q1 is 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 suitable for space-constrained applications.

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Technical documentation

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Type Title Date
* Data sheet ADS7142-Q1 Automotive, 2-Channel, 12-Bit, 140-kSPS, I2C-Compatible ADC With Programmable Threshold and Host Wake-Up Features datasheet (Rev. A) 01 Oct 2019
Technical article How smart AFEs offer an integrated analog solution for thermoelectric cooling control 04 Jan 2022
User guide BOOSTXL-ADS7142-Q1 BoosterPack™ Plug-In Module (Rev. B) 09 Jun 2021
Functional safety information ADS7142-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA 06 Oct 2020
Technical article How an automotive ADC can help designers achieve functional safety in ADAS 09 Jun 2020

Design & development

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Evaluation board

BOOSTXL-ADS7142-Q1 — ADS7142-Q1 2-channel 12-bit 140-kSPS I2C-compatible ADC BoosterPack™ plug-in module

BOOSTXL-ADS7142-Q1 is a platform for evaluating the performance of the ADS7142-Q1 successive approximation register (SAR) analog-to-digital converter (ADC), which is a nanopower, dual-channel, sensor monitor device. The evaluation kit includes the ADS7142-Q1 BoosterPack™ plug-in module, (...)

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Simulation model

ADS7142 IBIS Model

SBAM333.ZIP (45 KB) - IBIS Model
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Simulation model

ADS7142 TINA-TI Transient Spice Model

SBAM380.ZIP (12 KB) - TINA-TI Spice Model
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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Calculation tool

ADC-INPUT-CALC — Analog-to-digital converter (ADC) input driver design tool supporting multiple input types

ADC-INPUT-CALC is an online tool that provides support for designing the input buffer to an analog-to-digital converter (ADC). It offers 24 different op-amp based buffer circuits that can be used to drive an ADC input. The available topologies cover differential, single-ended and (...)
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Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
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Package Pins Download
WSON (DQC) 10 View options

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