Quad CMOS op-amp for multi-channel signal chains
The Texas Instruments LMV344MA/NOPB is a CMOS rail-to-rail output operational amplifier with four independent circuits in a 14-SOIC package. The 1 MHz gain-bandwidth product and 1 V/µs slew rate suit low-frequency signal processing — temperature, pressure, or bridge-type sensor outputs — rather than high-speed data acquisition.
Supply current and battery-life trade-off
At 107 µA per channel, the total quiescent draw for all four amplifiers is 428 µA. In a 3.7 V Li-ion system that translates to roughly 1.6 mW quiescent — low enough that the op-amp itself is not the dominant drain in a microcontroller-centric design. The 0.02 pA input bias current also preserves accuracy when using high-impedance sensor bridges without a buffer stage.
Lifecycle and compliance — no LTB risk
The NOPB suffix confirms lead-free / RoHS3-compliant finish.
