SparkFun External Input Sensor Amplifier
Overview
The SparkFun 13879 is an external input sensor amplifier designed to interface with resistive bridge sensors such as load cells. It features a 24-bit analog-to-digital converter (ADC) with an integrated low-noise programmable gain amplifier (PGA). This module simplifies the process of obtaining precise measurements from various sensor types by providing a clean digital output.
Why Choose This Part
This sensor amplifier offers a high-resolution 24-bit ADC, enabling precise measurements from low-level analog signals common in bridge sensors. Its on-chip PGA and power supply regulator simplify system design by minimizing external components. The simultaneous 50 and 60Hz supply rejection enhances signal integrity in environments with AC line noise.
Applications
Key Specifications
Getting Started
To get started, connect your resistive bridge sensor to the amplifier inputs. Power the module with a 2.6V to 5.5V supply. Utilize the I2C or SPI serial interface to read digital data into a microcontroller. No complex programming is required, as it uses pin-driven controls. SparkFun provides example code and hookup guides for easy integration with Arduino-compatible boards.
