Dual op-amp with 560 kHz GBW — what it buys the signal chain
The STMicroelectronics TSB612IYST is a dual-channel, general-purpose operational amplifier with a gain-bandwidth product of 560 kHz and a 0.2 V/µs slew rate.
560 kHz GBW and 0.2 V/µs slew rate — signal bandwidth boundaries
The 560 kHz gain-bandwidth product sets the closed-loop bandwidth for a given gain — at a gain of 10, the usable bandwidth is roughly 56 kHz, adequate for audio-frequency filtering, slow-sensor amplification, and control-loop conditioning. The 0.2 V/µs slew rate limits large-signal response: a 5 V output step slews in about 25 µs, which is fine for DC and low-frequency AC signals but not for fast pulse or video applications. For designs needing higher slew rates, the TS1851ILT offers 0.25 V/µs at a similar supply current, though it is a single-channel device.
Rail-to-rail output and supply flexibility
The supply range spans 2.7 V to 36 V, covering both low-voltage battery applications and industrial 24 V rails. Input offset voltage is 1 mV typical, and input bias current is 5 nA, which is adequate for precision DC coupling in non-critical paths. Each channel can source or sink 70 mA, sufficient to drive moderate loads or reference inputs of an ADC.
