What this 24-bit sigma-delta ADC brings to a precision measurement chain
The Maxim Integrated MAX11210EEE+ is a 24-bit sigma-delta ADC with a built-in programmable gain amplifier (PGA) and a single differential input, communicating over SPI. It samples at 480 SPS—deliberately slow, optimized for noise rejection on dc-like signals from bridge sensors, thermocouples, or load cells. The part operates from separate analog (2.7 V to 3.6 V) and digital (1.7 V to 3.6 V) supplies.
The 480 SPS maximum sample rate suits low-noise, high-resolution conversion. The sigma-delta modulator pushes quantization noise out of the band of interest. The external reference (REF pin) sets the input span. A low-drift reference is a common pairing.
The MAX11210EEE+ comes in a 16-pin QSOP (0.154" body width, 3.90 mm wide). The narrow body saves PCB area.
It is ROHS3 compliant. For a new design or a production BOM, there is no last-time-buy clock running.
