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 Catalog 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 Catalog 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
X2QFN (RUG) 10 3 mm² 1.5 x 2
  • Standalone, Nanopower Sensor Monitor for
    Cost-sensitive Designs
  • Small Package Size: 1.5 mm x 2 mm
  • Efficient Host Sleep and Wake-up
    • Autonomous Monitoring at 900 nW
    • Windowed Comparator for Event-triggered Host Wake-up
    • Data Buffering during Host Sleep
  • Independent Sensor 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
  • Deep Data Analysis
    • Data Buffer for Fault Diagnostics
    • High Precision Mode for 16-bit Accuracy
    • One-Shot Mode for Fast Data Capture
  • I2C™ Interface
    • Compatible from 1.65 V to 3.6 V
    • 8 Configurable Addresses
    • Up to 3.4 MHz (High Speed)
  • Wide Operating Range
    • Analog Supply: 1.65 V to 3.6 V
    • Temperature Range: –40°C to 125°C
  • Standalone, Nanopower Sensor Monitor for
    Cost-sensitive Designs
  • Small Package Size: 1.5 mm x 2 mm
  • Efficient Host Sleep and Wake-up
    • Autonomous Monitoring at 900 nW
    • Windowed Comparator for Event-triggered Host Wake-up
    • Data Buffering during Host Sleep
  • Independent Sensor 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
  • Deep Data Analysis
    • Data Buffer for Fault Diagnostics
    • High Precision Mode for 16-bit Accuracy
    • One-Shot Mode for Fast Data Capture
  • I2C™ Interface
    • Compatible from 1.65 V to 3.6 V
    • 8 Configurable Addresses
    • Up to 3.4 MHz (High Speed)
  • Wide Operating Range
    • Analog Supply: 1.65 V to 3.6 V
    • Temperature Range: –40°C to 125°C

The ADS7142 autonomously monitors signals while optimizing system power, reliability, and performance. It implements event-triggered interrupts per channel using a digital windowed comparator with programmable high and low thresholds, hysteresis, and event counter. The device includes a dual-channel analog multiplexer in front of a successive approximation register analog-to-digital converter (SAR ADC) followed by an internal data buffer for converting and capturing data from sensors.

The ADS7142 is available in 10-pin QFN package and consumes only 900 nW of power. The small form-factor and low power consumption make this device suitable for space-constrained and/or battery-powered applications.

The ADS7142 autonomously monitors signals while optimizing system power, reliability, and performance. It implements event-triggered interrupts per channel using a digital windowed comparator with programmable high and low thresholds, hysteresis, and event counter. The device includes a dual-channel analog multiplexer in front of a successive approximation register analog-to-digital converter (SAR ADC) followed by an internal data buffer for converting and capturing data from sensors.

The ADS7142 is available in 10-pin QFN package and consumes only 900 nW of power. The small form-factor and low power consumption make this device suitable for space-constrained and/or battery-powered applications.

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Design & development

For additional terms or required resources, click any title below to view the detail page where available.

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, (...)

User guide: PDF | HTML
Plug-in

SIMPLELINK-SDK-SENSOR-ACTUATOR-PLUGIN Sensor and Actuator Plug-in for SimpleLink™ MCU SDKs

The Sensor and Actuator Plugin for SimpleLink™ MCU SDKs provides support for a variety of related components including optical and temperature and humidity sensors, allowing customers to easily add new features to their SimpleLink MCU-based design. API user guides are provided for each (...)

Supported products & hardware

Supported products & hardware

Products
Bluetooth products
CC2640R2F SimpleLink™ 32-bit Arm® Cortex®-M3 Bluetooth® 5.1 Low Energy wireless MCU with 128-kB flash
Digital temperature sensors
TMP116 0.2C digital temperature sensor, 64-bit non-volatile memory
Ultrasonic sensor AFEs
PGA460 Ultrasonic signal processor and transducer driver
Wi-Fi products
CC3220MODA SimpleLink™ 32-bit Arm Cortex-M4 Wi-Fi CERTIFIED™ wireless module with antenna CC3220R SimpleLink™ 32-bit Arm Cortex-M4 Wi-Fi® wireless MCU with 6 TLS/SSL and 256kB RAM CC3220S SimpleLink™ 32-bit Arm Cortex-M4 Wi-Fi® wireless MCU with secure boot and 256kB RAM CC3220SF SimpleLink™ 32-bit Arm Cortex-M4 Wi-Fi® wireless MCU with 1MB Flash and 256kB RAM
Linear Hall-effect sensors
DRV5055 Ratiometric linear hall effect sensor with analog output
Precision ADCs (<=10MSPS)
ADS7142 12-bit 140-kSPS 2-ch nanopower SAR ADC with 1.8-V operation in 1.5-mm x 2-mm QFN package ADS7142-Q1 Automotive 2-channel 12-bit 140-kSPS I2C-compatible ADC with programmable threshold and host wake-up
Ambient light sensors
OPT3001 Digital ambient light sensor (ALS) with high-precision human-eye response
Humidity sensors
HDC2010 2% RH ultra-small, low-power digital relative humidity sensor HDC2080 2% RH ultra-low-power digital relative humidity sensor, interrupt/DRDY
Hardware development
BOOSTXL-ADS7142-Q1 ADS7142-Q1 2-channel 12-bit 140-kSPS I2C-compatible ADC BoosterPack™ plug-in module BOOSTXL-BASSENSORS Sensors BoosterPack plug-in module for building automation BOOSTXL-PGA460 PGA460-Q1 ultrasonic sensor signal conditioning evaluation module with transducers BOOSTXL-SENSORS Sensors BoosterPack Plug-In Module BOOSTXL-ULN2003 Dual Stepper Motor Driver BoosterPack featuring ULN2003 and CSD17571Q2 NexFET™ CC3220S-LAUNCHXL SimpleLink™ Wi-Fi® CC3220S wireless microcontroller LaunchPad™ development kit CC3220SF-LAUNCHXL SimpleLink™ Wi-Fi® CC3220SF wireless microcontroller LaunchPad™ development kit LAUNCHXL-CC1310 SimpleLink™ Sub-1 GHz CC1310 wireless MCU LaunchPad™ development kit LAUNCHXL-CC1352R1 SimpleLink™ Multi-Band CC1352R Wireless MCU LaunchPad™ Development Kit LAUNCHXL-CC2640R2 SimpleLink™ Bluetooth® Low Energy CC2640R2 wireless MCU LaunchPad™ development kit LAUNCHXL-CC26X2R1 SimpleLink™ multi-standard CC26x2R wireless MCU LaunchPad™ development kit MSP-EXP432E401Y SimpleLink™ Ethernet MSP432E401Y MCU Launchpad™ Development Kit
Evaluate in the cloud Download options
Support software

ADS7142 EVM GUI

SBAC172.ZIP (119203 KB)
lock = Requires export approval (1 minute)
Support software

ADS7142 Device Functional Modes Firmware (Rev. A)

SBAC201A.ZIP (48 KB)
lock = Requires export approval (1 minute)
Support software

Source Files for SBAA353

SBAC245.ZIP (21 KB)
Simulation model

ADS7142 IBIS Model

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

ADS7142 TINA-TI Input Model (Rev. B)

SBAM349B.TSC (3089 KB) - TINA-TI Reference Design
Simulation model

ADS7142 TINA-TI Transient Spice Model

SBAM380.ZIP (12 KB) - TINA-TI Spice Model
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 (...)
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 (...)
lock = Requires export approval (1 minute)
Design tool

Source files for SBAA317

SBAC226.ZIP (99 KB)
Gerber file

SBAA338 Simulation Files (Rev. A)

SBAC238A.ZIP (16 KB)
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 (...)
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 (...)
User guide: PDF
Reference designs

TIDA-010019 — RTD replacement for cold junction compensation reference design in a temperature sensor

Temperature-sensing applications that use a thermocouple (TC) require an accurate local temperature sensor to achieve high accuracy. Solutions for design challenges such as cold-junction compensation (CJC) or including an ultra-low power TC analog front-end are highlighted and addressed in this (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01546 — Battery and System Health Monitoring of Battery Powered Smart Flow Meters Reference Design

This reference design showcases innovative solutions for battery and system health monitoring of battery-powered Smart Flow Meters.  The battery monitoring subsystem provides highly accurate energy measurement and State of Health(SOH) projections which forecast battery lifetime. The system (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-010005 — Software-Configurable Cardiac Pacemaker Detection Module Reference Design

This reference design implements a compact hardware-based circuit to detect the pacemaker pulse during ECG measurement. It provides indication of valid pace signal through a flag and onboard LED. This design enables the user to configure various parameters of the pace signal (amplitude, rise time, (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01569 — 4 Channel Antenna LDO Reference Design with Digital Diagnostics and Integrated Protection

This automotive reference design demonstrates an approach for powering remote, off-board loads, often over coaxial cables (i.e. "phantom power"). This design is capable of protecting against and digitally diagnosing different faults that off-board cabling is susceptible to. Reverse polarity, (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01596 — Smart Thermostat Localized Heat Compensation for Ambient Temperature Sensing Reference Design

Localized thermostat heat generation is a leading cause for incorrect ambient temperature sensing near the return air plenum. This ultimately leads to overshoot in the HVAC cycle, resulting in costly energy bills. This reference design addresses this common problem associated with thermostat (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
X2QFN (RUG) 10 View options

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  • Ongoing reliability monitoring

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