Analog-to-Digital Converters enable temperature measurement.May 15, 2009 -
With data rate of 2 kSPS and 2.56 mW power dissipation, 24-bit Models ADS1248 and ADS1247 integrate dual matched current DACs, low drift internal reference, oscillator, temperature sensor, burnout detection, and 8 general purpose I/Os. Model ADS1248 features 4 differential/7 single-ended inputs, while Model ADS1247 provides 2 differential/3 single-ended inputs. Housed in TSSOP-20 package, converters include 50/60 Hz simultaneous rejection mode and operate from -40 to +125°C.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
Texas Instruments, Inc. (TI)
12500 TI Blvd.
Dallas, TX, 75243-4136
USA
Texas Instruments Introduces Complete 24-bit Temperature Measurement ADCs with Best-In-Class Power Consumption and Integration
DALLAS, April 30 /-- Texas Instruments Incorporated (TI) (NYSE:TXN) today announced a family of 24-bit, low-noise temperature measurement analog-to-digital converters (ADCs) featuring industry leading power consumption and integration. The ADS1248 and ADS1247 integrate dual matched current digital-to-analog converters (DACs), low drift internal reference, oscillator, temperature sensor, burnout detection and eight general purpose I/Os. With a data rate of 2 kSPS and only 2.56 mW of power dissipation, the ADCs provide an easy-to-use, low-power front-end solution for temperature measurement (RTDs, thermocouples, thermistors), flow/pressure measurement and industrial process control. For more product information, see: www.ti.com/ads1248-pr.
Key Features
-- 24-bit resolution, 2 kSPS data rate, 2.56 mW power dissipation
-- 4 differential / 7 single-ended inputs (ADS1248); 2 differential / 3 single-ended inputs (ADS1247)
-- 50/60 Hz simultaneous rejection mode
-- Low-noise programmable gain amplifier (40 nV at G=128)
Key Benefits
-- Complete precision temperature measurement ADC solution reduces device count and simplifies design without compromising performance
-- Flexible front end for wide range of industrial sensors that require high resolution and low noise
-- Excellent measurement repeatability over the -40 to +125C operating temperature range
-- Compatible devices complete the signal chain, including OPA277 and OPA333 precision operational amplifiers and REF5025 precision voltage reference
Availability and pricing
The ADS1248 and ADS1247 are available now in a TSSOP-20 package. The ADS1248 is priced at $4.95 and the ADS1247 is priced at $4.45. All pricing is in quantities of 1,000 units. For applications requiring a smaller package and lower cost, the single-channel ADS1246 provides a reduced feature set in a TSSOP-16 package for only $3.45.
Find out more about TI's delta-sigma data converters at the links below:
-- Samples and evaluation modules: www.ti.com/ads1248-pr
-- TI's data converter portfolio and selection guide: www.ti.com/dataconverters-pr
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 www.ti.com
Trademarks
All registered trademarks and other trademarks belong to their respective owners.
Web Site: http://www.ti.com/
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