110 kHz GBW, 20 µA per channel — the battery-life trade-off
The TLC27L2BCDR is a dual CMOS operational amplifier from Texas Instruments' LinCMOS™ series, built for applications where the supply budget is the binding constraint. Each of its two channels draws 20 µA typical, and the gain-bandwidth product is 110 kHz — a combination that suits DC or low-frequency signal conditioning on a 3 V to 16 V rail. The 0.03 V/µs slew rate is the direct consequence of the quiescent-current ceiling: the output stage is biased for micro-power, not fast settling. For a 1 V step, the output takes roughly 33 µs to slew — fine for a temperature sensor or a strain-gauge bridge, but not for an audio line driver or a switching-regulator error amplifier.
Input bias and offset — the sensor front-end fit
Input bias current is 0.6 pA typical, which is the CMOS-gate leakage floor at room temperature. This lets the TLC27L2BCDR interface directly with high-impedance sources — a 10 MΩ sensor sees less than 6 µV of voltage error from bias current, negligible in a 12-bit system. The input offset voltage is 204 µV, a figure that includes the production trim; it is the dominant DC error term in most circuits. Output current capability is 30 mA per channel, enough to drive a reference input or a small relay coil through a transistor, but not a 50 Ω back-terminated cable. The 0 °C to 70 °C temperature range limits this part to commercial-grade equipment — indoor instrumentation, bench-top gear, or environmental chambers, not an engine bay or a freezer.
Active production, ROHS3, 8-SOIC package
Texas Instruments lists the TLC27L2BCDR as Active and ROHS3 Compliant. The 8-SOIC package is a standard footprint shared by hundreds of dual op-amps — the board layout is interchangeable with parts like the TLC272 or TLV2372, though the supply current and bandwidth differ.