Dual nanopower comparator for always-on threshold sensing
The Texas Instruments TLV3402ID is a dual general-purpose comparator with a maximum quiescent current of 950 nA per channel. The open-drain output stage allows wire-OR or level-shifting; the CMOS output option provides rail-to-rail swing. Supply range spans 2.7 V to 16 V (or ±1.35 V to ±8 V split). Propagation delay is 300 µs maximum — slow by modern comparator standards, but entirely acceptable for DC threshold alarms, over-temperature detection, under-voltage lockout, or any loop where the event time constant is in the millisecond range. The 88 dB CMRR and 105 dB PSRR keep the trip point stable even when the supply or common-mode voltage shifts, which matters in noisy industrial or automotive environments. Temperature range is -40°C to 125°C, covering automotive under-hood, outdoor telecom cabinets, and factory-floor enclosures without derating. The 8-SOIC package is a standard footprint that fits existing PCB layouts and is easy to hand-solder for prototypes or rework.
950 nA quiescent — what it means for the BOM
The 950 nA per channel quiescent current is the defining spec. In a battery-powered sensor node, a comparator drawing microamps instead of nanoamps can cut standby life by months. The TLV3402ID keeps the threshold monitor alive continuously without a load switch or duty-cycling.
Active lifecycle — no last-time-buy pressure
The TLV3402ID carries an Active lifecycle status and is ROHS3 compliant. There is no announced end-of-life, no last-time-buy window to track. For procurement, that means this part can be specified into new designs without worrying about a forced redesign cycle in the next year. Stock it as a line item with confidence that the factory will still be shipping it when the next production run starts.
Sourcing and fit for production
This part is sourced through independent distribution and quoted to order against an RFQ. The 8-SOIC package is widely used, so no exotic handling or dry-storage requirements beyond standard MSL precautions. If you are consolidating comparator SKUs, the dual-channel TLV3402ID replaces two single-channel nanopower comparators in the same footprint, saving board space and reducing inventory lines.