ADS1672

ACTIVE

High Speed High Resolution 625kSPS 24 bit Delta Sigma ADC

Top

Product details

Parameters

Resolution (Bits) 24 Number of input channels 1 Sample rate (Max) (kSPS) 625 Interface Serial Architecture Delta-Sigma Input type Differential Multi-channel configuration Rating Catalog Reference mode Ext Input range (Max) (V) 3.25 Input range (Min) (V) 0 Features Operating temperature range (C) -40 to 85 Power consumption (Typ) (mW) 350 Analog voltage AVDD (Min) (V) 4.75 SNR (dB) 103 Analog voltage AVDD (Max) (V) 5.25 INL (Max) (+/-LSB) 159.4 Digital supply (Min) (V) 2.7 Digital supply (Max) (V) 3.3 Approx. price (US$) 11.13 | 1ku open-in-new Find other Precision ADCs (<=10MSPS)

Package | Pins | Size

TQFP (PAG) 64 144 mm² 12 x 12 open-in-new Find other Precision ADCs (<=10MSPS)

Features

  • AC Performance:
    107dB of Dynamic Range at 625kSPS
    115.5dB of Dynamic Range at 78kSPS
    –113dB THD
  • DC Accuracy:
    3ppm INL
    2µ/°C Offset Drift
    2ppm/°C Gain Drift
  • Programmable Digital Filter with User-Selectable Path:
    • Low-Latency: Completely settles in 5.5µs
    • Wide-Bandwidth: 305kHz BW with flat passband
  • Flexible Read-Only Serial Interface:
    • Standard CMOS
    • Serialized LVDS
  • Easy Conversion Control with START Pin
  • Out-of-Range Detection
  • Supply: Analog +5V, Digital +3V
  • Power: 350mW
  • APPLICATIONS
    • Automated Test Equipment
    • Vibration Analysis
    • Sonar
    • Test and Measurement

All other trademarks are the property of their respective owners

open-in-new Find other Precision ADCs (<=10MSPS)

Description

The ADS1672 is a high-speed, high-precision analog-to-digital converter (ADC). Using an advanced delta-sigma () architecture, it operates at speeds up to 625kSPS with outstanding ac performance and dc accuracy.

The ADS1672 ADC is comprised of a low-drift, chopper-stabilized modulator with out-of-range detection and a dual-path programmable digital filter. The dual filter path allows the user to select between two post-processing filters: low-latency or wide-bandwidth. The low-latency filter settles quickly in one cycle, for applications with large instantaneous changes, such as a multiplexer. The wide-bandwidth path provides an optimized frequency response for ac measurements with a passband ripple of less than 0.001dB, stop band attenuation of 86dB, and a bandwidth of 305kHz.

The ADS1672 is controlled through I/O pins—there are no registers to program. A dedicated START pin allows for direct control of conversions: toggle the START pin to begin a conversion, and then retrieve the output data. The flexible serial interface supports data readback with either standard CMOS and LVDS logic levels, allowing the ADS1672 to directly connect to a wide range of microcontrollers, digital signal processors (DSPs), or field-programmable grid arrays (FPGAs).

The ADS1672 operates from an analog supply of 5V and digital supply of 3V, and dissipates 350mW of power. When not in use, the PDWN pin can be used to power down all device circuitry. The device is fully specified over the industrial temperature range and is offered in a TQFP-64 package.

open-in-new Find other Precision ADCs (<=10MSPS)
Download

Technical documentation

= Featured
No results found. Please clear your search and try again. View all 6
Type Title Date
* Datasheet 625kSPS, 24-Bit Analog-to-Digital Converter datasheet (Rev. D) Jul. 08, 2010
Application notes Digital Filter Types in Delta-Sigma ADCs Jun. 27, 2017
White papers Voltage-reference impact on total harmonic distortion Aug. 01, 2016
User guides ADS1672EVM, ADS1672EVM-PDK User's Guide (Rev. A) Jan. 08, 2016
More literature Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs Mar. 19, 2015
Application notes Using the ADS1672 in Digital Filter Bypass Mode Dec. 06, 2008

Design & development

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

Hardware development

EVALUATION BOARDS Download
Description

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 (...)

EVALUATION BOARDS Download
document-generic User guide
Description

ADCPro™ is a modular software system for evaluating analog-to-digital converters (ADCs) without the need for expensive logic analyzers and complex analysis routines. Used alone it is suitable for performing analysis on data sets captured from ADC testing; when paired with a Texas Instruments (...)

Features

ADCPro software from Texas Instruments will simplify the tasks of collecting and analyzing ADC data, and ease evaluation. With it, you can easily set up an evaluation system that may not exactly replicate the manufacturer's system, but still arrive at meaningful results that can be compared to (...)

EVALUATION BOARDS Download
document-generic User guide
Description

The ADS1672EVM-PDK is a Performance Demonstration Kit (PDK) which combines the ADS1672EVM with a USB-connected DSP-based motherboard and evaluation software called ADCPro™.

 

Features
  • Easy-to-use evaluation software for Microsoft™ Windows XP and Windows 7
  • Built-in analysis tools including scope, FFT, and histogram displays
  • Data collection to text files
  • Complete control of board settings
  • Easily expandable with new analysis plug in tools from Texas Instruments

Design tools & simulation

SIMULATION MODELS Download
SBAC066A.ZIP (14 KB) - IBIS Model
SIMULATION TOOLS 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 (...)
document-generic User guide
CALCULATION TOOLS 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
TQFP (PAG) 64 View options

Ordering & quality

Support & training

TI E2E™ forums with technical support from TI engineers

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. ​​​​​​​​​​​​​​