Quad op-amp for multi-channel signal conditioning
The LMV844MAX/NOPB is a Texas Instruments quad general-purpose op-amp from the LMV® series, packing four independent amplifiers into a 14-SOIC package. It is suited for multi-channel sensor front-ends, active filters, or data-acquisition signal chains where board space is tight and each channel needs a rail-to-rail output swing.
Gain bandwidth and slew rate — what they mean for the signal path
With a 4.5 MHz gain-bandwidth product and a 2.5 V/µs slew rate, this amplifier supports signals up to the low-MHz range without significant distortion. The slew rate sets the large-signal ceiling: a 2 V peak-to-peak output at 400 kHz stays within the linear region, while a 5 V step at the same frequency would begin to slew-limit. The 50 µV typical input offset voltage and 4 pA input bias current keep DC errors low enough for precision circuits like thermocouple amplifiers or bridge transducers without needing a separate auto-zero stage.
Supply range and temperature grade
Operating from a single supply as low as 2.7 V up to 12 V, the LMV844MAX/NOPB fits into 3.3 V or 5 V systems without a split rail. The -40°C to 125°C temperature range covers industrial and automotive under-hood environments — the die is rated for the full 125°C ambient, not just junction. Each of the four channels draws 1.03 mA supply current, totalling about 4.1 mA for the package. The 37 mA output current per channel drives moderate loads like a 100-ohm feedback network or an ADC input directly.
Package, lifecycle, and compliance
Housed in a 14-SOIC (0.154-inch body width, 3.90 mm), the LMV844MAX/NOPB is a surface-mount part supplied on tape and reel. The supplier device package is 14-SOIC, and the mounting type is surface mount. Texas Instruments lists this part as Active in production. For a spare-parts storeroom, this means the reel can be stored under standard dry conditions without an imminent last-time-buy window.