ADS1119

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16-bit, 1kSPS, 4-ch general-purpose delta-sigma ADC with I2C interface and external Vref inputs

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Product details

Parameters

Resolution (Bits) 16 Number of input channels 4 Sample rate (Max) (kSPS) 1 Interface type I2C Architecture Delta-Sigma Input type Differential, Single-Ended Multi-channel configuration Multiplexed Rating Catalog Reference mode Ext, Int Input range (Max) (V) 5.5 Input range (Min) (V) 0 Features 50/60 Hz Rejection, Oscillator, PGA Operating temperature range (C) -40 to 125 Power consumption (Typ) (mW) 1 Analog voltage AVDD (Min) (V) 2.3 Analog voltage AVDD (Max) (V) 5.5 Digital supply (Min) (V) 2.3 Digital supply (Max) (V) 5.5 open-in-new Find other Precision ADCs (<=10MSPS)

Package | Pins | Size

TSSOP (PW) 16 22 mm² 5 x 4.4 WQFN (RTE) 16 9 mm² 3 x 3 open-in-new Find other Precision ADCs (<=10MSPS)

Features

  • Easy to Use With Only One Register to Program
  • Current Consumption as Low as 315 µA (typ)
  • Wide Supply Range: 2.3 V to 5.5 V
  • Rail-to-Rail Input Buffers to Achieve High Input Impedance
  • Programmable Gains: 1 and 4
  • Programmable Data Rates: Up to 1 kSPS
  • 16-Bit, Noise-Free Resolution at 20 SPS
  • Simultaneous 50-Hz and 60-Hz Rejection at 20 SPS With Single-Cycle Settling Digital Filter
  • Two Differential or Four Single-Ended Inputs
  • Internal 2.048-V Reference: 5 ppm/°C (typ) Drift
  • Internal 2% Accurate Oscillator
  • I2C-Compatible Interface
  • Supported I2C Bus Speed Modes:
    Standard-Mode, Fast-Mode, Fast-Mode Plus
  • 16 Pin-Configurable I2C Addresses
  • Package: 3.0-mm × 3.0-mm × 0.75-mm WQFN

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Description

The ADS1119 is a precision, 16-bit, analog-to-digital converter (ADC) that includes all features necessary to implement the most common system monitoring functions, such as supply voltage, current, and temperature monitoring. The device features two differential or four single-ended inputs through a flexible input multiplexer (MUX), rail-to-rail input buffers, a programmable gain stage, a voltage reference, and an oscillator.

The device includes buffers that allow high-impedance sources to be directly connected to the device. A gain stage follows the buffers which provides selectable gains of 1 and 4. The ADS1119 can perform conversions at data rates as high as 1000 samples per second (SPS) with single-cycle settling. At 20 SPS, the digital filter offers simultaneous 50-Hz and 60-Hz rejection for noisy industrial applications.

The ADS1119 features a 2-wire, I2C-compatible interface that supports I2C bus speeds up to 1 Mbps. 16 different I2C addresses can be selected for the device via two address pins.

The ADS1119 is offered in a leadless 16-pin WQFN or a 16-pin TSSOP package and is specified over a temperature range of –40°C to +125°C.

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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 5
Type Title Date
* Datasheet ADS1119 4-Channel, 1-kSPS, 16-Bit, Delta-Sigma ADC With I2C Interface datasheet (Rev. A) Nov. 28, 2018
E-book Fundamentals of Precision ADC Noise Analysis Jun. 19, 2020
Application note K-type thermocouple measurement circuit with precision ADC Mar. 19, 2019
Application note A Basic Guide to Thermocouple Measurements Sep. 28, 2018
User guide BOOSTXL-ADS1119 BoosterPack™ User's Guide Aug. 30, 2018

Design & development

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

Hardware development

EVALUATION BOARD Download
49
Description

The ADS1119 BoosterPack™ plug-in module is a platform for evaluating the ADS1119 analog-to-digital converter (ADC). ADS1119 is a 16-bit, 1-kSPS, 4-channel, low-power, delta-sigma ADC with an I2C interface for sensor measurement and process control applications. ADS1119 also includes an integrated (...)

Features
  • Configurable inputs, references, and supplies
  • Easily-accessible signals via test points and headers
  • Pairs with MSP-EXP432E401Y LaunchPad Development Kit

Design tools & simulation

SIMULATION MODEL Download
SBAM382.ZIP (39 KB) - IBIS Model
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
  • (...)
SIMULATION TOOL Download
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 (...)
CALCULATION TOOL Download
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 (...)
CALCULATION TOOL Download
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
TSSOP (PW) 16 View options
WQFN (RTE) 16 View options

Ordering & quality

Information included:
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  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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