New SAR ADC family enables high-speed, high-resolution analogue-to-digital conversion
in harsh environments
- Family includes the industry’s only 1 Msps fully AEC-Q100-qualified 16-bit SAR
- 12 devices designed to operate in high temperatures and electromagnetic environments
- Companion differential amplifier supports ADC with low-distortion, high-accuracyinterface
- Combines ultra-low power consumption with 1.7V to 5.5V digital I/O interface voltage range
Microchip announces 12 new Successive Approximation Register (SAR) Analogue-to-Digital Converters (ADCs) together 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 analogue supply voltage (AVDD) of 1.8V and low-current operation of 1.6 mA typical active current for 1 Msps, and 1.4 mA for 500 ksps, enable the 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 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 analogue 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 MCP331x1D-XX Evaluation Kit is available to demonstrate the performance of the MCP331x1D-XX SAR ADC family of 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)
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 mm2size is the smallest footprint available in the market for a 16-bit, 1 Msps differential ADC. The MCP6D11 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 more information, visit: https://www.microchip.com/MCP33131D-10
Who are Microchip?
Microchip Technology Inc. is a leading provider of microcontroller and analog semiconductors, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support along with dependable delivery and quality.
For more information about Microchip’s solutions, or to talk to us about how we can help you to improve your technology offering, please contact us via email on email@example.com and telephone on +44 (0) 845 453 1169