TL072IN
STMicroelectronics
MOQ 5 · Tube · RoHS · EIA-481 · DAP/DDP · T/T
Technical specifications
| Parameter / Attribute | Specification / Value |
|---|---|
| Mounting | Through Hole |
| Amplifier type | J-FET |
| Voltage - input offset | 3 mV |
| Voltage - supply span | 36 V |
| Current - supply | 1.4mA |
| Current - input bias | 20 pA |
| Current - output (Channel) | 40 mA |
| Operating temperature | -40°C ~ 105°C |
| Gain bandwidth product | 4 MHz |
| Grade | Automotive |
| Package | Tube |
| Slew rate | 16V/µs |
| Qualification | AEC-Q100 |
| Case | 8-DIP (0.300\", 7.62mm) |
| Number of circuits | 2 |
Need Stock or a Drop-in Second-Source for TL072IN?
Package: DIP-8 / SOIC-8 · Pin-compatible replacements with immediate Shenzhen spot stock
The TL071 is the single-channel member of the low-noise JFET-input family that ran the analog benches of the 1980s and still repairs them - audio front ends, instrumentation, filters, sample-and-holds and half of every synth ever: TL071 single, TL072 dual, TL074 quad, with the TL08x twins (TL081/082/084) as the higher-noise, otherwise interchangeable siblings. The channel-count letter is the socket definition, the A/B suffix is offset grade, and the family quirks - offset-null pins on the single only, and phase inversion near the negative rail - are what substitutions in this family actually get wrong.
Verified Pin-Compatible Replacements (4 verified alternatives)
Same Socket, Higher Noise
Shenzhen Spot Stock (24-48h Dispatch)
The same JFET-input architecture and pinout with noise around 25 nV/root-Hz against about 18 for the TL071 - the low-noise selection came from the 07x die.
Same supply envelopes and slew (about 13V/us), same 3MHz-class gain-bandwidth.
The Battery-Diet Sibling
Shenzhen Spot Stock (24-48h Dispatch)
The low-power member of the family: same JFET inputs and pinout, supply current cut to the microamp-conscious class at the cost of bandwidth (about 1MHz class against 3MHz).
Same envelopes; designed for portable instruments.
The Dual - Same Die, Different Count
Shenzhen Spot Stock (24-48h Dispatch)
Two channels of the same amplifier in the classic dual pinout (1 OUT1, 2 IN1-, 3 IN1+, 4 V-, 5 IN2+, 6 IN2-, 7 OUT2, 8 V+): no offset-null pins in this body.
Same supply and slew per channel.
The Modern Re-issue - a Different Animal
Shenzhen Spot Stock (24-48h Dispatch)
TIs 2020-era successor: same pinout and socket, but a CMOS input stage instead of JFET - about 20V/us slew, 1mV-class offset, and different noise character (about 37 nV/root-Hz).
Wider modern supply window (about +/-2.25V to +/-20V).
Buyer & Quality Checklist for Sourcing Alternatives
- The offset-null pins exist on the singles only (TL071 / TL081, pins 1 and 5). The dual and quad bodies have no null pins - a substitution across channel counts is a different socket, not a replacement.
- Phase-inversion is a real family quirk: when an input is driven below the negative-rail common-mode limit (about 3V above VCC-), the output can flip state. In single-supply sensor circuits that look noisy or inverted near ground, this is usually the cause - clamp the input or add a series resistor.
- Noise grading is the 07x-versus-08x line: about 18 against 25 nV/root-Hz. In low-level audio, swapping a 071 for an 081 is measurable; swapping upward is always safe.
- Suffix grades: B (3mV offset max), A (6mV), plain (10-15mV), times temperature C/I/M. Precision DC work wants the A or B part; audio rarely cares.
- The historical cross-branding is worth knowing at the bench: LF351-class parts were second-sourced against the TL081 and the names wander across databooks. When crossing brands in this family, compare offset and noise rather than trusting the prefix.
- JFET inputs have tiny bias current - the reason this family holds DC accuracy in high-impedance dividers. Preserve the advantage: keep board leakage low, clean flux, and do not populate a bipolar-input substitute casually in those positions.
Frequently Asked Technical Questions
Q: What is the difference between TL071 and TL081?
A: Same architecture, pinout and grade system - the 07x family is the low-noise selection of the 08x family (about 18 vs 25 nV/root-Hz). Interchangeable everywhere; in low-level audio or instrumentation the 081 replacement raises the noise floor.
Q: Can a TL072 replace a TL071?
A: No - the 072 is the dual-channel member with a completely different 8-pin layout and no offset-null pins. Same die per channel, different socket definition.
Q: Why does my TL071 circuit misbehave near ground on a single supply?
A: The family phase-inverts when the input is driven below its common-mode limit (roughly 3V above the negative rail). Symptom: the output flips high instead of staying off. Keep inputs inside the common-mode window or raise the negative rail.