Quad op-amp with rail-to-rail output swing
The TL974ID is a quad-channel general-purpose operational amplifier from STMicroelectronics, offering a 12 MHz gain-bandwidth product and a 5V/µs slew rate in a 14-SOIC package. Rail-to-rail output capability means the amplifier can swing its output to within millivolts of either supply rail, maximizing dynamic range in low-voltage single-supply designs. Operating from a single supply as low as 2.7 V up to 12 V, it fits battery-powered and industrial sensor interfaces where headroom is tight.
Supply current and temperature range
Each channel draws 2 mA from the supply, totaling 8 mA for the quad package — a reasonable quiescent budget for a four-channel signal-conditioning block on a mixed-signal board. Rated for -40°C to 125°C operation, the TL974ID covers industrial and automotive under-hood temperature grades without derating. Input offset voltage is 1 mV typical, and input bias current is 200 nA — adequate for general-purpose buffering and filtering where precision below 1 mV is not required.
Output drive and package
Each output can source or sink 80 mA, enough to drive a small relay coil, an LED indicator, or the input of a downstream ADC without an external buffer. Housed in a 14-SOIC (0.154-inch body width) surface-mount package, the TL974ID ships in tube format — the exact ordering code for through-tube handling rather than tape-and-reel.