Dual op-amp with 320 mA output — what that means for the load
The TLV4112CDGN from Texas Instruments is a dual general-purpose operational amplifier that stands out for its output current: 320 mA per channel. That is roughly ten times what a typical rail-to-rail op-amp delivers, so this part is chosen when the load is low-impedance — think headphone drivers, cable buffers, or actuator pre-drive stages where the op-amp directly sources or sinks significant current without a separate buffer transistor. The rail-to-rail output swing keeps the signal close to the supply rails under that load, which matters for single-supply designs at 2.5 V to 6 V. Gain bandwidth is 2.7 MHz with a 1.57 V/µs slew rate; that is modest by modern standards, but adequate for audio-band or slow-control loops where the high output current is the primary spec.
Supply budget and thermal design
Quiescent supply current is 700 µA for both channels combined. That is the trade-off: you get 320 mA output capability while the amp itself draws under a milliamp, so efficiency is high when the output is lightly loaded or idle. But at full output into a low-impedance load, the package dissipation climbs quickly. The 8-HVSSOP with exposed pad is designed to shed heat into a PCB copper land — the datasheet layout recommendation for that thermal pad is not optional. Without a proper thermal via pattern under the exposed pad, the junction temperature will exceed the 70°C commercial temperature range under sustained high-current drive.
Lifecycle and sourcing
This part is listed as Active with ROHS3 compliance. No end-of-life notice or last-time-buy window is on record. For a BOM freeze, that means no imminent LTB risk — the part can be specified into new designs with confidence that supply will continue through standard independent distribution channels. Sourced and quoted to order against an RFQ; availability and current pricing confirmed at quote time.