LMV339MX

LMV339MX is a Texas Instruments part: a low‑power, quad voltage comparator in the LMV339 family. It contains four independent comparators with open‑collector outputs, designed for single‑supply operation in low‑voltage systems.
Key points
- Four independent comparators in one 8‑pin package; MX denotes the MSOP‑8 (or similar small) package option.
- Open‑collector outputs (need pull‑up resistors to a suitable logic supply).
- Wide supply range suitable for 1.8–5.5 V systems; low quiescent current, good for battery-powered designs.
- Common applications: threshold sensing, level shifting, zero‑cross detection, battery monitoring, and simple MCU interfacing.
- Temperature range typically around -40°C to 125°C (industrial temp variant).
- Easy to use: no negative feedback needed; add hysteresis if you need noise immunity.
Note: check the specific datasheet for exact supply range, propagation delay, and package options for your exact variant.

Equivalents (quad open‑collector comparators, similar voltage range):
- TI LMV339
- TI TLV339 (same family, different packaging)
- Onsemi NCV339 (cross-reference)
Note: check exact supply range, input common-mode, and package compatibility before substitution; LMV339/LMV339MX typically operate from 1.65–5.5 V.

LMV339MX features (concise):
- Quad voltage comparators in a single package
- Open-collector outputs (requires pull-up resistors)
- Input common-mode range includes ground (not fully rail-to-rail up to Vcc)
- Single-supply operation from 1.65 V to 5.5 V
- Low-power operation for battery-powered designs
- Industrial temperature range: typically -40°C to 125°C
- Available in MX (surface-mount) package variants for compact PCB layouts
Note: As with all open-collector outputs, level sensing depends on external pull-ups to the desired logic level.

LMV339MX is a 14‑pin device that contains four independent comparators (a quad comparator) with open-collector outputs. It operates on low voltage (typical supply 1.65–5.5 V) and provides four input pairs (in+ and in−) with a common ground and a shared Vcc.

LMV339MX is manufactured by Texas Instruments (TI). TI is an American multinational semiconductor company that designs and manufactures analog and embedded processing integrated circuits used in a wide range of electronics. It’s headquartered in Dallas, Texas.

LMV339MX is a low-power quad voltage comparator with open-drain outputs. Common application areas include:
- Power management and battery apps: under/over-voltage detection, brown-out protection, voltage monitoring
- Sensor signal conditioning: threshold detection for temperature, light, pressure; window comparators with hysteresis
- Microcontroller interfaces: level shifting and logic interfacing; wired-OR with open-drain outputs
- DC-DC converter and regulator circuits: feedback comparison in switching regulators
- Industrial/automotive sensing: threshold detection for proximity/speed sensors, zero-crossing, protection circuits
- Timing and oscillators: relaxation oscillators and pulse-width detectors

LMV339MX is a quad comparator packaged in a 14-pin MSOP (MSOP‑14) package.