ADS1115IDGSR

The ADS1115IDGSR is a Texas Instruments 16-bit delta-sigma analog-to-digital converter that provides four single-ended or two differential inputs, a programmable gain amplifier, an internal reference and an I2C interface, in a small VSSOP-10 package. Its 16-bit resolution and integrated front end make it a practical way to add accurate measurement to a microcontroller design without building an external analog front end, and the I2C interface keeps the connection simple. The programmable gain amplifier lets the converter measure small sensor signals directly, and the internal reference removes the need for an external reference in many designs. The delta-sigma architecture provides good noise performance at the modest sample rates that sensor and process measurements use, and the device is designed for low power, which suits battery-powered instruments. It is a natural companion to a precision amplifier such as the OPA333, which buffers and conditions the sensor signal before the converter digitizes it, and to an MSP430 microcontroller that reads the result. The accuracy of the whole measurement depends on the reference and the layout as much as on the converter, so the analog supply and grounding matter. Every device is factory-traceable and ships with an import declaration, a certificate of origin and RoHS documentation. BeiLuo holds this part in regional stock and our FAE team supports measurement-chain and layout design.