10 MHz GBW, 8 V/µs slew rate — signal bandwidth ceiling
The OPA1688IDR is a dual-channel general-purpose op-amp from Texas Instruments with a 10 MHz gain-bandwidth product and an 8 V/µs slew rate. For a unity-gain buffer, the 10 MHz GBW means the small-signal bandwidth extends to 10 MHz; at a gain of 10, the closed-loop bandwidth drops to 1 MHz. The 8 V/µs slew rate sets the large-signal limit — a 10 V peak-to-peak output swing slews in about 1.25 µs, which corresponds to a full-power bandwidth of roughly 250 kHz before slew-induced distortion sets in. Each channel draws 1.6 mA supply current, keeping the total quiescent draw at 3.2 mA for both amplifiers — suitable for multi-channel signal conditioning where power budget matters.
Rail-to-rail output, 4.5 V to 36 V supply range
The rail-to-rail output stage swings within millivolts of each supply rail, maximizing dynamic range in low-voltage or single-supply designs. The supply span from 4.5 V minimum to 36 V maximum covers both 5 V and ±15 V rails — the same BOM position works across a 24 V industrial sensor interface and a 5 V battery-powered front end. Input offset voltage is 250 µV typical, and input bias current is 10 pA typical — the CMOS input stage keeps DC errors low enough for precision DC-coupled paths without trimming. Each output can source or sink 75 mA, enough to drive a 100 Ω load to ±3.75 V from a 5 V supply, or to directly drive the input of a successive-approximation ADC without an external buffer.
Active production, ROHS3, 8-SOIC package
The 8-SOIC package (3.90 mm body width) is a standard footprint shared by hundreds of dual op-amps, so PCB layout reuse across alternate sources is straightforward. ROHS3 compliant — no exemptions for lead in solder or any of the six restricted substances above threshold. The -40°C to 85°C operating range covers industrial indoor and outdoor enclosures without active cooling.