8-bit SAR ADC with multiplexed inputs and I²C interface
The Maxim Integrated MAX11604EEE+ is an 8-bit successive-approximation-register (SAR) analog-to-digital converter with a built-in multiplexer and sample-and-hold, packaged in a 16-pin QSOP. It accepts either 6 pseudo-differential or 12 single-ended input channels, configurable through the I²C interface, and digitizes at up to 188k samples per second. The device operates from a single 5V supply for both analog and digital sections, and includes an internal reference with the option to use an external reference for improved accuracy. Typical applications include industrial sensor interfaces, battery monitoring, data acquisition systems, and portable instrumentation where moderate resolution and low pin count are required.
Input configuration and channel count
The MAX11604EEE+ supports up to 12 single-ended inputs or 6 pseudo-differential inputs, selected via the I²C command set. The pseudo-differential mode allows a common-mode rejection benefit when the signal source shares a ground reference with the ADC. For designs that need to digitize multiple analog channels without external analog multiplexers, this part integrates the MUX and S/H in one package, saving board area.
Supply and temperature range
The part requires a 5V supply for both analog and digital domains.
It is ROHS3 compliant, which satisfies the majority of global environmental regulations for new product introductions.