Home Data converters Analog-to-digital converters (ADCs) Precision ADCs
Home
Data converters
Analog-to-digital converters (ADCs)
Precision ADCs

ADS1259-Q1

ACTIVE

Automotive, 24-bit, 14.4kSPS, 1-ch delta-sigma ADC w/ low-drift Vref for high-dynamic range systems

Order now
Data sheet

ADS1259-Q1

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 24 Sample rate (max) (ksps) 14.4 Number of input channels 1 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Rating Automotive Reference mode External, Internal Input voltage range (max) (V) 2.75, 5.35 Input voltage range (min) (V) -2.7, 0 Features 50/60 Hz Rejection, Oscillator Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 13 Analog supply (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
Resolution (Bits) 24 Sample rate (max) (ksps) 14.4 Number of input channels 1 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Rating Automotive Reference mode External, Internal Input voltage range (max) (V) 2.75, 5.35 Input voltage range (min) (V) -2.7, 0 Features 50/60 Hz Rejection, Oscillator Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 13 Analog supply (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
TSSOP (PW) 20 41.6 mm² 6.5 x 6.4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Results:
    • Temperature Grade 1: –40°C to 125°C
    • HBM ESD Classification 2
    • CDM ESD Classification C4B
  • Programmable Data Rates: 10 SPS to 14.4 kSPS
  • Single-Cycle Settling Digital Filter
  • High Performance:
    • 21.3 ENOB at 1.2 kSPS
    • INL: 3 ppm
    • Offset Drift: 0.05 µV/°C
    • Gain Drift: 0.5 ppm/°C
  • Internal Reference: 2.5 V, 10 ppm/°C Drift
  • Internal 2% Accurate Oscillator
  • Input Signal Out-of-Range Detection
  • Optional Checksum and Redundant Data-Read Capability
    to Augment Data Integrity
  • SPI-Compatible Interface, Mode 1
  • Analog Supply: 5 V or ±2.5 V
  • Digital Supply: 2.7 V to 5 V
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Results:
    • Temperature Grade 1: –40°C to 125°C
    • HBM ESD Classification 2
    • CDM ESD Classification C4B
  • Programmable Data Rates: 10 SPS to 14.4 kSPS
  • Single-Cycle Settling Digital Filter
  • High Performance:
    • 21.3 ENOB at 1.2 kSPS
    • INL: 3 ppm
    • Offset Drift: 0.05 µV/°C
    • Gain Drift: 0.5 ppm/°C
  • Internal Reference: 2.5 V, 10 ppm/°C Drift
  • Internal 2% Accurate Oscillator
  • Input Signal Out-of-Range Detection
  • Optional Checksum and Redundant Data-Read Capability
    to Augment Data Integrity
  • SPI-Compatible Interface, Mode 1
  • Analog Supply: 5 V or ±2.5 V
  • Digital Supply: 2.7 V to 5 V

The ADS1259-Q1 is a precision, low-drift, 24-bit, analog-to-digital converter (ADC). The device can perform conversions at data rates up to 14.4 kSPS with high resolution and is therefore ideally suited to measure rapidly changing signals that have a wide dynamic range. An integrated low-noise, low-drift 2.5-V reference eliminates the need for an external voltage reference, thus reducing system cost and component count.

The converter uses a fourth-order, inherently stable, delta-sigma (ΔΣ) modulator that provides outstanding noise performance and linearity. The device can use the integrated oscillator, an external crystal, or an external clock as the ADC clock source.

A fast-responding input overrange detector flags the conversion data if an input overrange event occurs. To augment data integrity in noisy automotive environments the ADS1259-Q1 offers an optional checksum byte and a redundant conversion data-read capability.

The ADS1259-Q1 consumes 13 mW during operation and less than 25 µW when powered down. TI offers the ADS1259-Q1 device in a TSSOP-20 package with full specification from –40°C to 125°C.

The ADS1259-Q1 is a precision, low-drift, 24-bit, analog-to-digital converter (ADC). The device can perform conversions at data rates up to 14.4 kSPS with high resolution and is therefore ideally suited to measure rapidly changing signals that have a wide dynamic range. An integrated low-noise, low-drift 2.5-V reference eliminates the need for an external voltage reference, thus reducing system cost and component count.

The converter uses a fourth-order, inherently stable, delta-sigma (ΔΣ) modulator that provides outstanding noise performance and linearity. The device can use the integrated oscillator, an external crystal, or an external clock as the ADC clock source.

A fast-responding input overrange detector flags the conversion data if an input overrange event occurs. To augment data integrity in noisy automotive environments the ADS1259-Q1 offers an optional checksum byte and a redundant conversion data-read capability.

The ADS1259-Q1 consumes 13 mW during operation and less than 25 µW when powered down. TI offers the ADS1259-Q1 device in a TSSOP-20 package with full specification from –40°C to 125°C.
open-in-new Find other Precision ADCs
Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 7
Type Title Date
* Data sheet Automotive, 14.4-kSPS, 24-Bit ADC with Integrated Low-Drift Reference datasheet 19 Mar 2014
Application note Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 29 Mar 2023
Application note Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs PDF | HTML 23 Mar 2022
Application note A Basic Guide to Bridge Measurements PDF | HTML 18 Feb 2022
Application note Communication Methods for Data Integrity Using Delta-Sigma Data Converters (Rev. A) PDF | HTML 23 Aug 2021
E-book Fundamentals of Precision ADC Noise Analysis 19 Jun 2020
E-book Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 19 Mar 2015

Design & development

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

Simulation model

ADS1259 IBIS Model

SBAM018.ZIP (112 KB) - IBIS Model
Download
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 operational-amplifier (...)
Download
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 (...)
Request
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
View options
Reference designs

TIDA-03050 — Automotive, mA-to-kA Range, Current Shunt Sensor Reference Design

This reference design shows how to detect current from the mA-to-KA range using a busbar-type shunt resistor. The increasing demand of high-capacity batteries in electric vehicles (EVs) and hybrid electric vehicles (HEVs) drives the requirement for larger current spans and highly-accurate current (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
TSSOP (PW) 20 View options
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

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

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos