New SAR ADC Family Enables High-Speed, High-Resolution Analog-to-Digital Conversion in Harsh Environment :
CHANDLER, Ariz., March 06, 2019 (GLOBE NEWSWIRE)
-- 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 Tools
The 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 Availability
Pricing 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.
Resources
High-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
