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DC2156A - LTC2946 Demo Board | Wide Range I2C Energy Monitor (req. DC590 or DC2026)

Demonstration circuit 2156A features the LTC®2946 rail-to-rail system monitor that measures current, voltage, power, energy and charge. It features an operating range of 2.7V to 100V and includes a shunt regulator for operation from supplies above 100V to allow flexibility in the selection of input supply. The current measurement range of 0V to 100V is independent of the input supply. An onboard, 0.4% accurate, 12-bit ADC measures load current, input voltage and an auxiliary external voltage. A 24-bit power value is generated by digitally multiplying the measured 12-bit load current and input voltage data. Energy and charge data are generated by integrating power and current. Minimum and maximum values are stored and an overrange alert with programmable thresholds minimizes the need for software polling. Data is reported via a standard I2C interface. Shutdown mode reduces power consumption to 20μA.

DC2156A - Schematic

 

Companion Demo Boards

DC2026C - Linduino One Isolated USB Demo Board: An Arduino- and QuikEval-Compatible Code Development Platform
DC590B - Isolated USB Serial Controller for Linear Technology QuikEval-Compatible Demo Boards



Software

QuikEval System

The QuikEval system is a USB-based product demonstration and data acquisition system that allows users to quickly evaluate the performance of Linear Technology products. The system consists of a USB Data Acquisition Controller board (DC590B) that connects to individual daughter cards for specific Linear Technology products.

Click here to download QuikEval

Linduino

Linduino is an Arduino compatible platform for developing and distributing firmware libraries and code for SPI and I²C-compatible integrated circuits. The Linduino One board interfaces to more than 300 QuikEval demonstration cards, supporting a variety of product types including analog-to-digital converters (ADCs)digital-to-analog converters (DACs)power monitors, and more. Firmware libraries for individual devices are written in C and designed to be portable to a wide variety of processors and microcontrollers. Each library has a demonstration program that can be uploaded to the Linduino One platform to allow the circuit and software to be quickly and easily verified.

Click here for more information on Linduino