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TI unveils Unique MCU with an integrated low-leakage Transimpedance Amplifier Consumes merely 50pA of Current

Texas Instruments

Texas Instruments extends its ultra-low-power MSP430 MCU family unveils new MSP430FR2311 microcontroller (MCU), the industry’s only MCU with an integrated low-leakage transimpedance amplifier (TIA) consuming just 50pA of current. The new MCU can empower customers with extended battery life in sensing and measurement applications.

The new microcontroller offers 20 times lower leakage than alternative voltage and current sensing solutions and provides the configurability of analog and memory technology without sacrificing battery life or board space.

Key features include:

  • Highly integrated MCU solution with configurable analog helps developers simplify their schematics and save PCB space by up to 75 percent.
  • The MSP430FR2311 MCU allows developers to connect to a wide range of sensors with its analog integration including ADC, op amp, comparators and TIA.
  • This solution also integrates Ferroelectric Random Access Memory (FRAM) technology and eliminates the need for an onboard crystal in a single 5 mm x 4 mm package. This single chip solution will reduce design complexity and overall project development time.
  • The MSP430FR2311 MCU allows developers to choose the amplifier configuration (non-inverting, inverting or transimpedance) they need and scale their application by selecting the amount of memory to be allocated for application code or data, eliminating the boundaries of Flash to RAM ratios.
  • Current MSP430G2x MCU customers using 2KB and 4KB devices can easily migrate their designs to the MSP430FR2311 MCU and take advantage of higher performance with non-volatile FRAM and higher analog integration, including operational amplifiers, ADCs and comparators. Review the MSP430F2xx and MSP430G2xx series migration guideto learn how to easily move between families when needing more analog capability.

Additionally, customers can get started in minutes using the MSP430FR2311 MCU LaunchPad development kit supported by Code Composer Studio integrated development environment (IDE) and IAR Embedded WorkBench. Customers can then explore an application implementation with the MSP430FR2311 smoke sensing sub-system reference design (coming in 2Q16) using a photodiode and TIA configuration for current sensing. Lastly, customers developing for medical health and fitness, building automation and personal electronics can further extend battery life by utilizing this TI Design reference design (TIDA-00242) which uses a TI energy harvesting IC (bq25570) in an MSP430FR2311 MCU-based system.

Pricing and Availability

The MSP430FR2311 MCU is the first in a family of devices available on the TI Store for immediate sampling. These MCUs will start at USD $0.65 in 1 K unit quantities. The MSP430FR2311 MCU LaunchPad development kit is also available on the TI Store for $15.99.


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