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TL081 JFET-Input Op-Amp

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by Ray

Single JFET-input operational amplifier with high slew rate and low input bias current.

op-ampjfetsingleanalogtisoic-8
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README

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TL081

Texas Instruments · Operational Amplifier · SOIC-8

The TL081 is a single JFET-input operational amplifier. Its JFET inputs give high input impedance and low bias current, and its 13 V/us slew rate and 3 MHz bandwidth suit active filters, integrators, sample-and-hold, and general single-op-amp signal conditioning. It is the single member of the TL08x family alongside the dual TL082 and quad TL084.

Pinout

Pin Name Type Function
1 OFFSET N1 input Input offset-voltage adjustment. Connect the ends of an external trim potentiometer (typ. 10 kΩ) between OFFSET N1 (pin 1) and OFFSET N2 (pin 5), with the wiper tied to VCC-. Leave open if offset trim is not required.
2 IN- input Inverting input of the op-amp. JFET-gate input; ultra-low input bias current. Common-mode input range extends to VCC+ (per datasheet features).
3 IN+ input Non-inverting input of the op-amp. JFET-gate input; ultra-low input bias current. Common-mode input range extends to VCC+.
4 VCC- power_in Negative supply rail. For split-supply operation, tie to the negative rail; for single-supply operation, tie to GND. Total supply (VCC+) − (VCC-) must be between 4.5 V and 40 V (10 V to 30 V for NS/PS packages and TL08xM).
5 OFFSET N2 input Input offset-voltage adjustment. Second end of the external offset-null potentiometer (see OFFSET N1). Leave open if offset trim is not required.
6 OUT output Op-amp output. Short-circuit protected to ground (continuous, one amplifier per package). Drives loads referenced between VCC- and VCC+.
7 VCC+ power_in Positive supply rail. Recommended supply (VCC+) − (VCC-) is 4.5 V to 40 V (10 V to 30 V for NS/PS packages and TL08xM). Bypass with a local ceramic capacitor to VCC- (or GND for single-supply).
8 NC unconnected Do not connect. No internal bond wire. Leave floating on the PCB.

Key specifications

Parameter Value
Type Single JFET-input op-amp
Supply voltage +-2.25 V to +-18 V (4.5 V to 36 V single)
Input bias current 30 pA typ
Slew rate 13 V/us typ
Gain-bandwidth product 3 MHz typ
Input offset voltage 3 mV typ
Operating temperature 0 C to 70 C

Ordering variants

Same part, different packaging or reel option.

  • TL081P
  • TL081D
  • TL081PS
  • TL081DBV
  • TL081DCK

CAD (KiCad official)

  • Symbol: tl081.kicad_sym
  • Footprint: tl081.kicad_mod
  • 3D model: SOIC-8 body from KiCad Package_SO/SOIC-8_3.9x4.9mm_P1.27mm.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (78 pp, sha256 6a831542dbeee1d7, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF