SGM58031XMS10G/TR Ultra-Small, Low-Power, 16-Bit Analog-to-Digital Converter

Product Overview – SGM58031XMS10G/TR vs. ADS1115IDGSR

The SGM58031XMS10G/TR is a precision 16-bit Sigma-Delta ADC with an integrated reference, oscillator, PGA, and I²C interface supporting up to 960 samples per second (SPS). It accepts four single-ended or two differential inputs and operates from a 3 V to 5.5 V supply, offering ultra-low power consumption and industrial-grade temperature support. 

In comparison, the ADS1115IDGSR from Texas Instruments is also a 16-bit Delta-Sigma ADC with an internal reference, oscillator, and programmable gain amplifier (PGA), supporting a data rate of up to 860 SPS and configurable I²C addresses. 

Resolution and Data Throughput

SGM58031XMS10G/TR delivers true 16-bit conversion resolution with selectable data rates from 6.25 SPS up to 960 SPS, enabling high-precision measurement where noise performance and resolution are critical. 

The ADS1115IDGSR also offers a 16-bit resolution with data rates up to 860 SPS. However, the maximum configurable throughput is slightly lower than SGM58031’s top rate, providing SGM58031 with a margin for higher-speed precision tasks. 

Input Configuration and Flexibility

SGM58031 supports 4 single-ended or 2 differential inputs through an input multiplexer, enabling flexible channel configurations in compact systems. Its internal PGA facilitates very low-level signal measurements down to ±256 mV with minimal external components. 

The ADS1115 likewise features an input multiplexer allowing four single-ended or two differential channels, and its PGA provides input ranges from ±256 mV up to ±6.144 V. While this offers broader range flexibility, the underlying SGM58031 design emphasizes optimized precision for low-voltage, noise-critical applications. 

Power Consumption and Operating Conditions

SGM58031 is engineered for ultra-low power, supporting low quiescent current (typical continuous mode 255 µA and power-down mode ~0.8 µA), making it highly suitable for battery-powered and portable applications. Its operation across a wide supply range (3 V to 5.5 V) and industrial temperatures (-40 °C to +125 °C) underscores its robustness. 

The ADS1115 has a comparable low-power profile with typical continuous conversion current around 150 µA, but SGM58031’s overall integrated design (including internal reference and PGA) means fewer external components and lower total system power in many applications. 

Integration and Ease of Use

With an I²C-compatible interface and four selectable I²C addresses, SGM58031 simplifies multi-device systems and reduces firmware complexity in embedded designs. Its integrated reference and oscillator significantly reduce BOM and PCB footprint. 

ADS1115 similarly provides I²C with selectable addresses, internal reference, and PGA, but SGM58031’s optimized interface timing and internal voltage reference design improve system stability and reduce calibration overhead in production environments. 

Application Scenarios and Competitive Edge

SGM58031XMS10G/TR is ideal for precision measurement, industrial control, battery monitoring systems, temperature measurement, and portable instruments where low power and high resolution are critical. Its design emphasis on minimal external components and ultra-low quiescent power offers a compelling cost-performance advantage. 

While ADS1115IDGSR is widely adopted in general-purpose data acquisition (e.g., environmental sensing, consumer electronics), SGM58031’s slightly higher maximum data rate, tightly integrated analog front end, and reduced system design complexity provide an edge in industrial and precision measurement applications requiring tighter noise control and enhanced stability.