What this op amp is and where it fits
The Texas Instruments TLE2021AIP is a single-channel general-purpose operational amplifier from the Excalibur™ series, in an 8-pin PDIP through-hole package. It delivers a gain bandwidth product of 1.7 MHz with a slew rate of 0.65 V/µs, drawing only 240 µA of supply current. The input offset voltage is trimmed to 80 µV, and input bias current is 25 nA. It operates over a wide supply span from 4 V to 40 V, making it suitable for industrial control, sensor conditioning, and general signal-chain designs that need a single-supply or split-supply rail without an extra regulator. The -40°C to 85°C temperature grade covers most factory-floor and outdoor telecom enclosures.
1.7 MHz GBW and 240 µA — the power-bandwidth trade-off
At 1.7 MHz gain bandwidth, this part is not a high-speed amplifier — it is sized for audio-band filtering, slow control loops, and DC-precise conditioning where the load step is measured in milliseconds, not nanoseconds. The 240 µA quiescent current is the headline advantage: compared to a general-purpose op amp that burns 1 mA or more, the TLE2021AIP keeps the power budget tight in loop-powered transmitters or battery-backed analog inputs. The 20 mA output drive per channel is enough to swing a 4-20 mA loop or drive a typical ADC reference buffer, but not a heavy cable or relay coil.
Supply range and input headroom
Rated for a 4 V to 40 V supply span, the TLE2021AIP accepts unregulated industrial rails without a pre-regulator. The 80 µV offset and 25 nA bias keep errors low.
Lifecycle and sourcing posture
The TLE2021AIP is listed as Active and ROHS3 compliant. No last-time-buy or obsolescence notice is on record. For new designs or BOM-fill, this part is sourced and quoted to order.