New SAR ADC Family Enables High-Speed, High-Resolution Analog-to-Digital Conversion in Harsh Environments
March 06 2019 - 8:09AM
To address applications that demand higher-speed and
higher-resolution analog-to-digital conversion, Microchip
Technology Inc.
(Nasdaq: MCHP) today announced 12
new Successive Approximation Register (SAR) Analog-to-Digital
Converters (ADCs) along with a companion differential amplifier
designed specifically for the new portfolio of SAR ADCs. Designed
to operate in high temperatures and high electromagnetic
environments, the
MCP331x1(D)-xx family includes
the industry’s only one million samples per second (Msps) fully
AEC-Q100-qualified 16-bit SAR, providing the reliability required
for automotive and industrial applications. The
MCP6D11 differential amplifier provides a
low-distortion, high-accuracy interface to achieve the full
performance of the ADC within systems.
The MCP331x1(D)-xx family ranges in resolution from
12-, 14- and 16-bit, with speed options ranging from 500
kilosamples per second (ksps) to 1 Msps, allowing developers to
choose the right ADC for their designs. A fixed low analog supply
voltage (AVDD) of 1.8V and low-current operation (1.6 mA typical
active current for 1 Msps and 1.4 mA for 500 ksps) enables this
family of ADCs to have an ultra-low power consumption, while
maintaining a wide input full-scale range.
These devices support a wide digital I/O interface
voltage (DVIO) range (1.7V - 5.5V) which allows it to interface
with most host devices, including Microchip’s PIC32, AVR® and
Arm®-based microcontrollers and microprocessors. This eliminates
the need for using external voltage level shifters. The
MCP331x1(D)-xx family contains both single-ended and differential
input voltage measurement options, enabling systems to convert the
difference between any two arbitrary waveforms. Ideal for
applications such as high-precision data acquisition, electric
vehicle battery management, motor control and switch-mode power
supplies, the AEC-Q100-qualified family provides reliable
performance across harsh environments.
Properly interfacing a small analog signal to a
high-speed, high-resolution ADC without introducing additional
noise and distortion is a critical challenge. Microchip’s MCP6D11
differential amplifier is designed specifically to address this
challenge, providing a low-distortion and high-accuracy interface
to properly drive the ADC.
“The ADC market and applications are pushing toward
higher resolution, higher speed and higher accuracy,” said Bryan J.
Liddiard, vice president of Microchip’s mixed-signal and linear
business unit. “In addition, lower power consumption and smaller
packaging are also tremendously important, and these products
address all these demands.”
Development ToolsThe MCP331x1D-XX Evaluation
Kit is available to demonstrate the performance of the MCP331x1D-XX
SAR ADC family devices. The evaluation kit includes the
following:
- MCP331x1D Evaluation Board
- PIC32MZ EF MCU Curiosity Board for data collection
- SAR ADC Utility PC Graphical User Interface (GUI)
Pricing and AvailabilityPricing for the new SAR
ADCS range from the MCP33111 available for $1.45 each in
10,000-unit quantities to the MCP33131 available for $4.65 each in
10,000-unit quantities. Each ADC is available in either the 10-MSOP
with leads in a 3 mm X 3 mm package or 10-TDFN no leads 3 mm X 3 mm
package. The 9 mm2 size is the smallest footprint available in the
market for a 16-bit, 1 Msps differential ADC. Pricing for the
MCP6D11 is $1.17 in 10,000-unit quantities and is available in the
8-MSOP or 3 mm x 3 mm 16-QFN package. The MCP331x1(D)-xx Evaluation
Kit is available for $175.
For additional information, contact a Microchip sales
representative, authorized worldwide distributor or visit
Microchip’s website. To purchase products mentioned here visit our
purchasing portal or contact a Microchip
authorized distributor.
ResourcesHigh-res images available through
Flickr or editorial contact (feel free to publish):
- Application image:
www.flickr.com/photos/microchiptechnology/46225333084/sizes/l
- Chip image:
www.flickr.com/photos/microchiptechnology/40171379033/sizes/l
About Microchip TechnologyMicrochip Technology
Inc. is a leading provider of microcontroller, analog, FPGA,
connectivity and power management semiconductors. Its easy-to-use
development tools and comprehensive product portfolio enable
customers to create optimal designs which reduce risk while
lowering total system cost and time to market. The company’s
solutions serve more than 130,000 customers across the industrial,
automotive, consumer, aerospace and defense, communications and
computing markets. Headquartered in Chandler, Arizona, Microchip
offers outstanding technical support along with dependable delivery
and quality. For more information, visit the Microchip website at
www.microchip.com.
Note: The Microchip name and logo, the Microchip logo, PIC and
AVR are registered trademarks of Microchip Technology Incorporated
in the U.S.A. and other countries. All other trademarks mentioned
herein are the property of their respective companies.
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480-792-7182 |
|
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