Texas Instruments Incorporated (TI) today
introduced an isolated amplifier
and a delta-sigma modulator that enable best-in-class shunt-based current
measurement in motor control and green energy applications. The AMC1200 isolated
amplifier and AMC1204 delta-sigma modulator allow designers to increase
accuracy, temperature stability and immunity to magnetic fields in equipment such
as AC drives, solar inverters and uninterruptible power supplies. For more
information and to order samples, visit www.ti.com/amc1200-pr.
The AMC1200 is a
4-kV peak isolated amplifier providing 80-percent better linearity and gain
drift compared to competitive devices while reducing power consumption by 50
percent. The AMC1204 is a 20-MHz, externally-clocked, isolated delta-sigma
modulator that provides 40-percent better linearity than the competition.
Key features and benefits
- AMC1200 isolated amplifier:
- High precision with a maximum non-linearity of 0.07 percent and gain drift of 56 ppm/C.
- Reduced power consumption with a low high-side supply current of no more than 8 mA at 5 V.
- Fully specified over the extended industrial temperature range of -40 to 105 degrees C – 20 degrees higher than competitive offerings.
- Easy connection to analog-to-digital converters (ADCs) and microcontrollers (MCUs) with 5-V or 3.3-V operation on the low side and self-adjusting common mode voltage.
- AMC1204 isolated delta-sigma modulator:
- Ultra-high accuracy with best-in-class non-linearity of +/- 8 LSB, maximum, and a digital output that allows designers to define digital filter characteristics based on system requirements.
- Includes an external clock interface to enable simultaneous measurement of multiple channels.
- Both devices provide high electromagnetic interference immunity and a robust isolation barrier certified by UL 1577 and IEC 60747-5-2. The AMC1204 is also CSA-certified.
Tools and support
TI offers a
variety of tools and support to speed design for customers. Design tools for
the AMC1200 include an evaluation module,
as well as simulation
models. An evaluation module
and IBIS
model are available for the AMC1204.
Engineers can
also ask questions and help solve problems in the Precision Data Converter Forum
in the TI E2E™ Community.
Complementary analog solutions
Customers can speed
time-to-market when combining the AMC1200 or AMC1204 with complementary
products in TI’s analog portfolio. Examples include:
- Data converters, such as the dual, 16-bit ADS8363 SAR ADC and the quad-channel AMC1210 digital filter.
- Amplifiers, such as the OPA333 zero drift operational amplifier and the INA333 precision instrumentation amplifier.
- Power management, such as the REF5050 low drift voltage reference.
Learn more about TI’s precision
data converter portfolio by visiting the links below:
·
Order AMC1200 samples or evaluation module: www.ti.com/amc1200-pr.
·
Order AMC1204 samples or evaluation module: www.ti.com/amc1204-pr.
·
View the AMC1200 data sheet: www.ti.com/amc1200ds-pr.
·
View the AMC1204 data sheet: www.ti.com/amc1204ds-pr.
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About Texas Instruments
Texas
Instruments semiconductor innovations help 80,000 customers unlock the
possibilities of the world as it could be – smarter, safer, greener, healthier
and more fun. Our commitment to building a better future is ingrained in
everything we do – from the responsible manufacturing of our semiconductors, to
caring for our employees, to giving back inside our communities. This is just
the beginning of our story. Learn more at www.ti.com.
