The TL072CDR: For a photodiode preamp or a pH probe buffer where the source impedance runs into the megaohm range, that bias current won't create a measurable offset voltage across the source resistance. The dual JFET front end also keeps the voltage noise density low enough for audio-band or instrumentation front ends without the 1/f corner pushing into the passband. This is the same input architecture that made the original TL072 a workhorse in guitar pedals and mixer consoles — the CDR variant brings it into a modern ROHS3-compliant 8-SOIC package.
Slew rate and bandwidth — where the TL072CDR fits
13V/µs slew rate paired with 3 MHz gain-bandwidth product means this op-amp cleanly reproduces a 20 kHz sine wave at 20 Vpp output — the large-signal bandwidth is about 325 kHz before slew limiting sets in. For audio or low-frequency control loops, that's more than enough; for video or high-speed ADC drivers, it's not. The 1.4 mA per channel quiescent current keeps the thermal budget modest; in an 8-SOIC on a 2-layer board, the junction stays well below the 70°C ambient ceiling without airflow.
8-SOIC package and board-fit considerations
8-SOIC (3.90 mm body width, 1.27 mm pitch) is one of the most widely stocked op-amp footprints. The TL072CDR's supplier device package is 8-SOIC — it drops into the same land pattern as an LM358, NE5532, or OPA2134. No board spin required if the existing layout already uses the SOIC-8 footprint. CT is for prototyping or low-volume builds. Surface-mount only; no through-hole variant in this order code.