Four amplifiers in one SOIC — what the TLC2274AIDR brings to the bench
The input bias current sits at 1 pA, so you can buffer high-impedance sources like photodiodes or pH probes without worrying about offset drift from bias current.
Rail-to-rail output with 50 mA drive — where the current goes
Each of the four channels can source or sink up to 50 mA, which is unusual for a rail-to-rail output stage. That means you can drive a small relay coil, an LED indicator, or the input of an ADC without a separate buffer transistor. The output swings within a few tens of millivolts of each rail under light load, so you get nearly the full supply range into a 10 kΩ load. Just watch the package thermal limits if you plan to run all four channels near the 50 mA ceiling simultaneously — the 14-SOIC has a junction-to-ambient thermal resistance around 100°C/W, and the part is rated for junction temperatures up to 150°C.
Active production — no end-of-life shadow
No last-time-buy notices, no phase-out announcements.