Zero-drift precision in a 5-pin SC-70
The STMicroelectronics TSZ121ICT is a single-channel zero-drift operational amplifier with 1 µV input offset, 400 kHz gain-bandwidth product, and 0.19 V/µs slew rate. Supply current is 31 µA. Output drive is 18 mA per channel. Input bias current is 70 pA.
Temperature range and package — where it fits on the board
The SC-70-5 package (also known as SOT-353) is a five-lead, 2.0 mm × 2.1 mm footprint that fits on tight mixed-signal boards where every square millimetre counts. Surface-mount assembly is standard; no exposed pad, so the thermal path is through the leads only — keep the copper pour under the part connected to a ground plane for best heat spreading.