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

Highly Integrated 20A Digital Power Module for High Current Applications

March 20, 2024
Renesas latest power module delivers the highest efficiency (up to 94% peak) and fast time-to-market solution in an extremely small footprint. The RRM12120 is ideal for space...

Empowering Innovation: Your Power Partner for Tomorrow's Challenges

March 20, 2024
Discover how innovation, quality, and reliability are embedded into every aspect of Renesas' power products.

Article: Meeting the challenges of power conversion in e-bikes

March 18, 2024
Managing electrical noise in a compact and lightweight vehicle is a perpetual obstacle

Power modules provide high-efficiency conversion between 400V and 800V systems for electric vehicles

March 18, 2024
Porsche, Hyundai and GMC all are converting 400 – 800V today in very different ways. Learn more about how power modules stack up to these discrete designs.

Comments

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