ADS1000-Q1

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Automotive, 12-Bit, 128SPS, 1-Ch Delta-Sigma ADC w/ PGA, Oscillator & I2C

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Product details

Parameters

Resolution (Bits) 12 Number of input channels 1 Sample rate (Max) (kSPS) 0.128 Interface type I2C Architecture Delta-Sigma Input type Differential, Single-Ended Multi-channel configuration Rating Automotive Reference mode Supply Input range (Max) (V) 5.5 Input range (Min) (V) 0 Features Oscillator, PGA, Small Size Operating temperature range (C) -40 to 125 Power consumption (Typ) (mW) 0.21 Analog voltage AVDD (Min) (V) 2.7 Analog voltage AVDD (Max) (V) 5.5 INL (Max) (+/-LSB) 1 Digital supply (Min) (V) 2.7 Digital supply (Max) (V) 5.5 open-in-new Find other Precision ADCs (<=10MSPS)

Package | Pins | Size

SOT-23 (DBV) 6 5 mm² 2.9 x 1.6 open-in-new Find other Precision ADCs (<=10MSPS)

Features

  • Qualified for Automotive Applications
  • Complete 12-Bit Data Acquisition System in a Tiny
    SOT-23 Package
  • Low Current Consumption: Only 90 µA
  • Integral Nonlinearity: 1 LSB Max
  • Single-Cycle Conversion
  • Programmable Gain Amplifier
    Gain = 1, 2, 4, or 8
  • 128-SPS Data Rate
  • I2C Interface with Two Available Addresses
  • Power Supply: 2.7 V to 5.5 V
  • APPLICATIONS
    • Automotive Head Units
    • Automotive Battery Management Systems
    • Automotive On-Board Chargers
    • HEV/EV Inverters
    • NOx Sensors
    • Soot and Particulate Matter (PM) Sensors
    • Oxygen (O2, Lambda, A/F) Sensors
    • Ammonia (NH3) Sensors
    • Other Emissions and Gas Sensors

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Description

The ADS1000-Q1 is an I2C-compatible serial interface analog-to-digital (A/D) converter with differential inputs and 12 bits of resolution in a tiny SOT23-6 package. Conversions are performed ratiometrically, using the power supply as the reference voltage. The ADS1000-Q1 operates from a single power supply ranging from 2.7 V to 5.5 V.

The ADS1000-Q1 performs conversions at a rate of 128 samples per second (SPS). The onboard programmable gain amplifier (PGA), which offers gains of up to 8, allows smaller signals to be measured with high resolution. In single-conversion mode, the ADS1000-Q1 automatically powers down after a conversion, greatly reducing current consumption during idle periods.

The ADS1000-Q1 is designed for applications where space and power consumption are major considerations. Typical applications include head units, battery management systems, on-board chargers, and emissions and gas sensors.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 6
Type Title Date
* Datasheet ADS1000-Q1 Low-Power 12-Bit Analog-to-Digital Converter With I2C Interface datasheet (Rev. B) Oct. 28, 2015
E-book Fundamentals of Precision ADC Noise Analysis Jun. 19, 2020
Application note Digital Filter Types in Delta-Sigma ADCs Jun. 27, 2017
Application note How delta-sigma ADCs work, Part 1 (Rev. A) Sep. 19, 2016
E-book Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs Mar. 19, 2015
Application note How delta-sigma ADCs work, Part 2 Nov. 09, 2011

Design & development

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Design tools & simulation

SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
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SPICE-based analog simulation program
TINA-TI 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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Analog-to-digital converter (ADC) input driver design tool supporting multiple input types
ADC-INPUT-CALC 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 transformer-coupled (...)
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Analog engineer's calculator
ANALOG-ENGINEER-CALC — 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 (...)
Features
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 6 View options

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