TI introduces single-supply, auto-zero sensor amplifier with programmable gain and offset

Device used as building block for bridge sensors and data acquisition

DALLAS, Nov. 21 /PRNewswire/ -- Texas Instruments Incorporated (TI) (NYSE: TXN) today introduced a single-supply, auto-zero bridge sensor amplifier. Featuring programmable gain and offset, the PGA308 amplifies the sensor signal and provides digital calibration for zero (offset) and span (gain). A One-Wire, UART-compatible digital serial interface performs the calibration. The PGA308 is used as a building block for resistive bridge sensor conditioning and general data acquisition applications. (See http://www.ti.com/pga308-pr.)

At the heart of the PGA308 is a precision, low-drift and low-noise front-end programmable gain amplifier (PGA). Digital-programmable coarse offset, fine offset and selected gain (coarse and fine) may be controlled in real time or permanently programmed into the PGA308. The device can store seven banks of one-time programmable (OTP) memory of gain and offset calibration parameters. A separate power-on reset (POR) OTP bank can be programmed up to four times.

The fault monitor detects overload, burnout and system faults. The over-/under-scale limits offer additional system-level diagnostics.

Using auto-zero techniques, the device achieves excellent precision and noise over the extended industrial temperature range of -40 degrees C to +125 degrees C and has an operating voltage of +2.7 V to +5.5 V. Other digitally calibrated sensor signal conditioning ICs from TI include PGA309, a voltage output programmable sensor conditioner with temperature compensation, and XTR108, a 4-20 mA, two-wire transmitter, or voltage output programmable RTD signal conditioner.

Availability, packaging and pricing

The PGA308 is available now from TI and its authorized distributors in a MSOP-10 package and a 3 mm x 4 mm DFN-10 package. The device is priced at $1.85 each in 1,000-piece quantities (suggested resale price). A hardware and software PGA308EVM evaluation tool is available for calibration and configuration.

About Texas Instruments

Texas Instruments (NYSE: TXN) helps customers solve problems and develop new electronics that make the world smarter, healthier, safer, greener and more fun. A global semiconductor company, TI innovates through manufacturing, design and sales operations in more than 25 countries. For more information, go to http://www.ti.com.

    Please refer all reader inquiries to:  Texas Instruments Incorporated
                                           Semiconductor Group, SC-08148
                                           Literature Response Center
                                           14950 FAA Blvd.
                                           Fort Worth, TX 76155
                                           1-800-477-8924

Trademarks

All trademarks and registered trademarks are the property of their respective owners.

Web site: http://www.ti.com/




Review Article Be the first to review this article
Aldec

Featured Video
Editorial
Peggy AycinenaWhat Would Joe Do?
by Peggy Aycinena
Simon Davidmann: A re-energized Imperas Tutorial at DAC
Peggy AycinenaIP Showcase
by Peggy Aycinena
ARM: A Gnawing Sense of Unease
More Editorial  
Jobs
LVS for PDK Design Engineer SILICON VALLEY for EDA Careers at San Jose, CA
DDR 3-4-5 Developer with VIP for EDA Careers at San Jose, CA
LVS PEX DESIGN ENGINEERS SILICON VALLEY for EDA Careers at San Jose, CA
Senior Front-End RTL Design AE for EDA Careers at San Jose, CA
Upcoming Events
11th International Conference on Verification and Evaluation of Computer and Communication Systems at 1455 DeMaisonneuve W. EV05.139 Montreal Quebec Canada - Aug 24 - 25, 2017
DVCon India 2017, Sept 14 - 15, 2017 at The Leela Palace Bengalore India - Sep 14 - 15, 2017
SMTA International 2017 at Rosemont IL - Sep 17 - 21, 2017
S2C: FPGA Base prototyping- Download white paper



Internet Business Systems © 2017 Internet Business Systems, Inc.
595 Millich Dr., Suite 216, Campbell, CA 95008
+1 (408)-337-6870 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering TechJobsCafe - Technical Jobs and Resumes GISCafe - Geographical Information Services  MCADCafe - Mechanical Design and Engineering ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy Policy