10-bit SAR ADC with 400k SPS and flexible input mux
The MAX1090AEEI+ is a 10-bit successive-approximation-register (SAR) ADC from Analog Devices, sampling at 400k samples per second. Its MUX-S/H-ADC architecture handles either 4 pseudo-differential or 8 single-ended inputs, giving you channel-count flexibility without a separate front-end mux. The parallel data interface pushes the full 10-bit word on each conversion clock, so the host controller reads the result in one bus cycle — no serial shift-out latency. This matters when you are interleaving multiple ADC reads in a tight control loop.
Supply rails and reference options for system integration
The reference can be driven externally or drawn from the internal bandgap — external gives you ratiometric accuracy tied to a precision source; internal saves a reference IC if the system can tolerate the ±1 % initial tolerance. The tube delivery means the parts arrive oriented for pick-and-place, not loose in a reel — plan your feeder setup accordingly.