Its 1 MHz gain-bandwidth product and 2 V/µs slew rate suit it for low-frequency signal conditioning — sensor buffering, filter stages, and level translation — where the signal bandwidth stays below a few hundred kilohertz. Each of the four amplifiers draws 60 µA of supply current, making the total quiescent draw 240 µA for the package. At 1.8 V minimum supply, this part runs directly from a single Li-ion cell through its discharge curve, which is the primary reason to select it over higher-speed quads that burn ten times the current.
The 40 mA output current per channel is enough to drive an ADC input, a small relay coil, or a LED indicator directly, but not a heavy load like a motor or solenoid — those need a buffer transistor. Input bias current is 5 pA typical, so the part can interface with high-impedance sensors (piezoelectric, photodiode) without significant offset from bias current flowing through source resistance. The 400 µV input offset voltage is typical for a general-purpose CMOS op-amp; for precision DC measurements below 1 mV, a zero-drift amplifier would be the better choice.
Package and thermal — 16-WQFN with exposed pad
Without that via stitch, the junction temperature rises quickly when all four channels source 40 mA simultaneously. The pad also provides a low-inductance ground return, which helps keep the supply clean in mixed-signal layouts.
Lifecycle and sourcing posture
It is a current-production part from Texas Instruments, so no last-time-buy risk is on the horizon. For dual-sourcing, the TLV9351IDCKR is a single-channel alternative with higher bandwidth (3.5 MHz) and faster slew rate (20 V/µs), but it is not a pin-compatible drop-in — the package and channel count differ. The TLV9362IDDFR is a dual-channel sibling with 10.6 MHz GBW. Neither is a direct quad replacement; the TLV9004IRTER is the only quad in this low-power family at the 1 MHz tier.