Bipolar SAR ADCs Address PLC And Data Acquisition

Sept. 8, 2011
$jq().ready( function() \{ setupSidebarImageList(); \} );

The four-channel ADS8634 and eight-channel ADS8638 bipolar 12-bit SAR ADCs from Texas Instruments boast a 1-Msample/s sampling rate that’s a fourfold improvement over the company’s previous generation of ADCs

Dallas, Texas: The four-channel ADS8634 and eight-channel ADS8638 bipolar 12-bit successive approximation register (SAR) analogue-to-digital converters (ADCs) from Texas Instruments boast a 1-Msample/s sampling rate that’s a fourfold improvement over the company’s previous generation of ADCs (see the figure). The devices are intended for programmable logic control (PLC) and data acquisition applications.

The ADS8634 and ADS8638 provide a wide operating temperature range, up to 125°C, and are fully characterised over the extended industrial temperature range. They also allow an input range of ±12 V when used with an external reference. The digital interface supports 1.8- to 5-V hosts without additional level shifting circuitry.

Both ADCs feature per-channel software-selectable input ranges that support ±12 V, ±10 V, ±5 V, ±2.5 V, 0 to 5 V, and 0 to 10 V, providing a single-chip solution for a wide range of inputs, while enabling designers to easily interface to a variety of sensors with a single ADC.

TI offers a host of tools and support to speed development with the ADS8634 and ADS8638, including an IBIS model, an anti-aliasing filter tool for data converters, and an op-amp-to-ADC circuit topography calculator. A performance development kit, including all circuitry, software, and source code, is also available to evaluate the performance of both parts.

Texas Instruments
www.ti.com

Sponsored Recommendations

Understanding Thermal Challenges in EV Charging Applications

March 28, 2024
As EVs emerge as the dominant mode of transportation, factors such as battery range and quicker charging rates will play pivotal roles in the global economy.

Board-Mount DC/DC Converters in Medical Applications

March 27, 2024
AC/DC or board-mount DC/DC converters provide power for medical devices. This article explains why isolation might be needed and which safety standards apply.

Use Rugged Multiband Antennas to Solve the Mobile Connectivity Challenge

March 27, 2024
Selecting and using antennas for mobile applications requires attention to electrical, mechanical, and environmental characteristics: TE modules can help.

Out-of-the-box Cellular and Wi-Fi connectivity with AWS IoT ExpressLink

March 27, 2024
This demo shows how to enroll LTE-M and Wi-Fi evaluation boards with AWS IoT Core, set up a Connected Health Solution as well as AWS AT commands and AWS IoT ExpressLink security...

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!