ADS1219IPWR – TEXAS INSTRUMENTS

The Texas Instruments ADS1219IPWR is a low-power, 24-bit, delta-sigma analog-to-digital converter (ADC) in a 10-lead WSON package. It features a single-ended input, internally buffered, capable of achieving a maximum sampling rate of 100kSPS. The device operates from a 2.7V to 5.5V supply voltage, drawing a typical supply current of 650µA at 5V. Its input voltage range is ±2.5V, making it suitable for a wide array of sensor interfacing applications. The ADS1219IPWR boasts a high input impedance (≥10GΩ), minimizing loading effects on sensitive transducers. Internal circuitry includes a programmable gain amplifier (PGA) with gains ranging from 1 to 128, allowing for signal amplification tailored to specific sensor outputs. Its low noise performance (typical input referred noise of 2.7µVrms) makes it ideal for precision measurement applications. Common use cases include biomedical instrumentation (ECG, EEG), industrial process monitoring, and high-resolution data acquisition systems where low power consumption and high resolution are critical design parameters. The device’s SPI interface simplifies integration into microcontroller-based systems. The choice of the ADS1219IPWR offers a balance between resolution, speed, and power consumption, making it a strong candidate for applications requiring precise, low-noise analog signal conversion.