Dual CMOS op-amp for low-power, low-voltage signal chains
The TLV342SIRUGR: Dual CMOS op-amp with rail-to-rail output, supply span 1.5 V to 5.5 V. Each channel draws 75 µA quiescent current.
What the ratings mean for the BOM
The 1.5 V minimum supply span means this op-amp runs directly from a single Li-ion cell or two alkaline cells without a boost converter — the rail-to-rail output keeps the signal swing close to the supply, preserving dynamic range at low voltage. The 1 pA input bias current and 300 µV input offset are typical for CMOS inputs; no need for external nulling in most precision sensor interfaces, though offset-sensitive weigh-scale or thermocouple circuits may want a trim. The 115 mA output current per channel can drive moderate loads like a headphone or a small relay coil, but for higher-current actuators a buffer stage is expected.