Active production — what that means for a BOM line
The MAX11057ECB+: ROHS3 compliant — no exemption-based restrictions on the bill of materials for EU or similar markets.
Four simultaneous channels — the architecture that matters
Four separate A/D converters each with a dedicated sample-and-hold capture four single-ended inputs at the same instant — no mux scan delay between channels. The 1:1 S/H-to-ADC ratio means each converter owns its own acquisition window, so phase alignment between channels is limited only by the aperture uncertainty of the SAR core, not by a shared mux. Sampling at 250 kSPS per converter with 14-bit resolution, the part suits multi-phase power monitoring, vibration analysis, or any application where the timing relationship between signals must be preserved across the full Nyquist bandwidth.
Supply rails and interface — parallel bus, dual supplies
The parallel data interface provides the fastest readback latency — no SPI clock overhead — at the cost of more board traces. Reference can be supplied externally or drawn from the internal bandgap, giving the layout engineer flexibility to share a precision reference across multiple ADCs on the same board or keep the BOM count low with the on-chip option.
Package and thermal — 64-TQFP with exposed pad
Housed in a 64-lead TQFP with an exposed pad, supplier device package 64-TQFP-EP (10x10 mm). Surface-mount assembly in a Tray carrier — the tray format is typical for prototype or low-volume builds; high-volume reels are not listed for this order code.
Temperature grade and environment
No AEC-Q100 grade is claimed on the record, so under-hood or extended-temperature deployments should be validated against the part's own characterization.