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Precision ADCs (<=10MSPS)

ADS1219

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

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Data sheet

ADS1219

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 24 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
Resolution (Bits) 24 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
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TSSOP (PW) 16 22 mm² 5 x 4.4 WQFN (RTE) 16 9 mm² 3 x 3
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  • 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
  • Up to 20 Bits Effective Resolution
  • 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
  • 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
  • Up to 20 Bits Effective Resolution
  • 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
open-in-new Find other Precision ADCs (<=10MSPS)

The ADS1219 is a precision, 24-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 ADS1219 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 ADS1219 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 ADS1219 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.

The ADS1219 is a precision, 24-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 ADS1219 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 ADS1219 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 ADS1219 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

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Type Title Date
* Data sheet ADS1219 4-Channel, 1-kSPS, 24-Bit, Delta-Sigma ADC With I2C Interface datasheet (Rev. A) 28 Nov 2018
Technical article How smart AFEs offer an integrated analog solution for thermoelectric cooling control 04 Jan 2022
E-book Fundamentals of Precision ADC Noise Analysis 19 Jun 2020
Application note K-type thermocouple measurement circuit with precision ADC 19 Mar 2019
Application note A Basic Guide to Thermocouple Measurements 28 Sep 2018
User guide BOOSTXL-ADS1219 BoosterPack User's Guide 03 Aug 2018

Design & development

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

Evaluation board

BOOSTXL-ADS1219 — ADS1219 24-bit, 1kSPS, 4-channel, delta-sigma ADC BoosterPack™ plug-in module

The ADS1219 BoosterPack™ plug-in module is a platform for evaluating the ADS1219 analog-to-digital converter (ADC). ADS1219 is a 24-bit, 1-kSPS, 4-channel, low-power, delta-sigma ADC with an I2C interface for sensor measurement and process control applications. ADS1219 also includes an integrated (...)

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Simulation model

ADS1219 IBIS Model

SBAM383.ZIP (39 KB) - IBIS 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
TSSOP (PW) 16 View options
WQFN (RTE) 16 View options

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