ADS131M04-Q1

The ADS131M04-Q1 is a high-precision, 24-bit analog-to-digital converter (ADC) designed for industrial and automotive applications requiring robust performance in harsh environments. It features four simultaneous, independent ADC channels, each capable of operating at up to 100 kSPS (kilosamples per second), enabling accurate multi-channel data acquisition with minimal crosstalk. The device supports both single-ended and differential input modes, offering flexibility in sensor interface design. This ADC includes an integrated programmable gain amplifier (PGA) with gains ranging from 1 to 128, allowing it to directly interface with low-level signals from sensors such as strain gauges, thermocouples, and pressure transducers without the need for external amplification. Its advanced noise performance—less than 1 µV RMS over the full-scale range—ensures high-resolution measurements even under challenging conditions. Additionally, the ADS131M04-Q1 offers configurable digital filters, including sinc3 and sinc4 filters, which provide excellent out-of-band rejection and reduce aliasing effects. Designed for reliability in demanding environments, the ADS131M04-Q1 meets AEC-Q100 Grade 1 qualification standards, making it suitable for automotive applications such as engine control units, battery management systems, and diagnostic tools. It operates from a 3.3 V supply and features a low power consumption mode, optimizing energy efficiency in battery-powered systems. Communication with the device is facilitated via a standard SPI-compatible serial interface, supporting both master and slave modes for flexible system integration. The chip also includes built-in diagnostics such as internal self-test, channel monitoring, and error detection mechanisms, enhancing system integrity and reducing maintenance needs. Its robust architecture supports hardware-based fault detection, ensuring safe operation during transient events like power supply fluctuations or signal line faults. With support for multiple operating modes—including continuous conversion, single-shot, and low-power sleep states—the ADS131M04-Q1 adapts efficiently to varying application demands. This device is ideal for precision measurement systems in industrial automation, medical instrumentation, and environmental monitoring where accuracy, reliability, and compliance with stringent safety standards are critical. Its combination of high resolution, low noise, and automotive-grade durability makes it a preferred choice for next-generation sensing platforms.