Active lifecycle — no last-time-buy scramble
The MAX900BCPP: RoHS non-compliant — the part uses leaded solder terminations, so it fits legacy wave-solder or hand-solder processes but not lead-free reflow lines without a waiver.
Quad comparator with fast TTL output
A low-power voltage comparator in a quad configuration — four independent comparators in one 20-pin DIP, each with push-pull TTL output that drives logic inputs directly without a pull-up resistor. 8 ns typical propagation delay means it resolves input differences fast enough for high-speed threshold detection, zero-crossing, or pulse-width monitoring in control loops.
Operates from a single 5 V to 10 V supply or dual ±2.5 V to ±5 V rails — flexible enough for mixed-signal boards that already carry ±5 V analog supplies.
Parametric fit for threshold detection
4 mV max input offset at 5 V supply — adequate for general-purpose window comparators and level sensing, but too wide for precision applications like battery-monitor thresholds where sub-millivolt accuracy is needed. 10 µA max input bias current at 5 V — the input impedance is moderate; high-source-impedance signals (above 100 kΩ) will see offset errors from the bias current flowing through the source resistance. Typical CMRR of -82 dB and PSRR of -80 dB — the common-mode and supply rejection are adequate for most signal-conditioning tasks where the input common-mode range stays within the supply rails.
Supplied in Bulk tube packaging — no tape-and-reel, so it is handled as loose parts for manual insertion or small-batch assembly.