MAX11208AEUB+

Analog To Digital Converters (ADC) Overview

The MAX11208AEUB+ is a 20-bit, single-channel, ultra-low-power delta-sigma analog-to-digital converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated. It features a 2-wire serial interface and operates within an analog supply voltage range of 2.7V to 3.6V and a digital supply range of 1.7V to 3.6V. The device provides a full-scale resolution of 20 bits with a noise-free resolution of 19 bits at a data rate of 120 samples per second (sps). It incorporates an internal system clock operating at 2.4576MHz and supports fully differential signal and reference inputs. The component is housed in a space-saving 10-pin µMAX package and functions reliably across a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Ultra-low power consumption with active current under 300µA and sleep mode current below 0.1µA
• High-resolution 20-bit delta-sigma architecture with on-chip SINC4 digital filter for line noise rejection
• Integrated high-accuracy internal oscillator eliminating the need for external clock components
• Simple 2-wire serial interface supporting on-demand offset and gain self-calibration

Analog To Digital Converters (ADC) Applications

• Sensor measurement for temperature and pressure monitoring
• Portable instrumentation devices requiring extended battery life
• Battery-powered applications and weigh scales
• Sensors integrated into 4mA to 20mA industrial control loops

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'G07' or standard '+/-' RoHS compliance status against the manufacturer's latest documentation, as ordering suffixes may indicate packaging variations or environmental certifications without altering electrical function. Confirm availability through authorized distributors, noting that component lifecycle status can change. Ensure the selected variant matches the required internal oscillator frequency specification for the target application timing requirements.

Analog To Digital Converters (ADC) Selection Notes

Select the MAX11208AEUB+ when a fixed output rate of 120sps is required, utilizing its 2.4576MHz internal oscillator. This variant differs from the MAX11208BEUB+, which offers a lower 13.75sps rate with a 2.2528MHz oscillator and higher noise-free resolution. Consider the fully differential input configuration and the necessity for self-calibration features when designing for high-precision environments where drift compensation is critical for long-term accuracy.

Analog To Digital Converters (ADC) Part Context

The MAX11208 belongs to a family of ultra-low-power, high-resolution delta-sigma ADCs designed for precision measurement tasks. It shares architectural similarities with other Maxim Integrated low-speed ADCs but distinguishes itself through its specific combination of 20-bit resolution, minimal active current draw, and simplified 2-wire serial communication protocol. The device targets applications where power efficiency and dynamic range are prioritized over high-speed sampling capabilities.

Analog To Digital Converters (ADC) Replacement Considerations

The MAX11208BEUB+ serves as a direct pin-compatible alternative within the same package, offering different performance characteristics including a lower data rate of 13.75sps and a distinct internal oscillator frequency of 2.2528MHz. Designers must verify if the reduced update rate and altered clock specifications align with their system timing requirements before substituting this part.