High-speed differential amplifier for signal-chain front-ends
The THS4505DR is a single-channel differential amplifier from Texas Instruments, designed for high-speed signal conditioning where a differential output is needed — think driving high-resolution ADCs, balanced transmission lines, or single-ended-to-differential conversion in test equipment and communications receivers. With a 260 MHz -3dB bandwidth and a 1800V/µs slew rate, this part handles fast-settling pulses and wideband analog signals without the slew-induced distortion that limits slower amplifiers. The gain-bandwidth product of 210 MHz confirms the usable small-signal bandwidth across closed-loop gains, making it a fit for IF amplifiers, video distribution, and high-speed data acquisition.
DC precision and supply flexibility for real-world rails
Input offset voltage is 4 mV max, and input bias current is 4 µA — typical for a high-speed bipolar input stage, but worth noting for precision DC-coupled paths where the offset must be trimmed or AC-coupled. Supply current is 16 mA per channel, and the supply span runs from 4.5 V to 15 V, so it works off a single 5 V rail or split ±5 V supplies without needing a separate regulator. The -40°C to 85°C operating temperature range covers industrial environments — control-room gear, base-station RF front-ends, and benchtop instrumentation all fall within this envelope.
Package, ordering codes, and lifecycle status
Housed in an 8-pin SOIC package (8-SOIC, 3.90 mm width, supplier device package 8-SOIC), the THS4505DR is offered in Tape & Reel (TR) and Cut Tape (CT) options — the DR suffix identifies the reeled variant for automated pick-and-place. Texas Instruments lists this part as Active in production and ROHS3 compliant, so it remains a standard catalog item for new designs and ongoing production without an end-of-life notice. Sourced through authorized distribution channels; current pricing and lead time are confirmed at quote against your BOM quantity.