LM741 PCB Design Guide: Footprint, Pinout, and Alternatives
Classic general-purpose bipolar op amp; a legacy part for repairs and coursework, not new designs.
The LM741 is the classic general-purpose bipolar op amp, the part that made the op amp a jellybean commodity, still in production at TI and documented in SNOSC25D (Rev. D), which covers the LM741, LM741A, and LM741C grades. It runs from ±10 V to ±22 V supplies (±18 V max for the C grade), draws 1.7 mA typical, provides offset-null pins to trim its 1 mV typical input offset (2 mV for the LM741C), and features overload protection on the input and output plus no latch-up when the common-mode range is exceeded. It needs no external compensation network; TI specifies its transient response and slew rate at unity gain, and the datasheet still lists it as a direct plug-in replacement for the LM709-generation parts it displaced.
Be honest about what this part is today: a legacy device. The 0.5 V/µs typical slew rate, 500 nA maximum input bias current, and inputs and outputs that stop volts short of the rails were competitive decades ago and are beaten by cheaper parts now. Pick the LM741 to repair or faithfully reproduce old equipment, to match a textbook or lab-course schematic, or to sustain a design already qualified around it. For anything new, the TL071 is a drop-in upgrade in the same pinout, and there is no spec on this page that a modern op amp does not beat.
Most 741 board problems trace to five mistakes: expecting it to work on a logic rail when the recommended supply starts at ±10 V, violating input absolute maximums that shrink with the supply voltage, designing around a bandwidth the datasheet never guarantees, ignoring thermal derating and the C grade's low junction-temperature ceiling, and specifying a temperature grade you can no longer actually buy. Each is covered below.
What breaks boards
It wants real dual rails: ±10 V minimum, and nothing reaches them
TI's recommended operating conditions start at ±10 V and top out at ±22 V (±18 V for the LM741C). Even on ±15 V supplies the guaranteed input voltage range is only ±12 V, and the output swings ±12 V min / ±14 V typ into 10 kΩ (±10 V min into 2 kΩ). Nothing here is rail-to-rail. The datasheet allows single-supply operation, but the same totals apply across the pins, so an MCU board's logic rail is hopeless. For low-voltage or single-supply work use an LM358-class part or a modern CMOS op amp instead.
The input absolute maximum shrinks with your supply
The absolute maximum input voltage reads ±15 V, but footnote 5 takes most of that back: for supply voltages less than ±15 V, the absolute maximum input voltage equals the supply voltage. On reduced rails, any input that can exceed the supply — a sensor powered before the amplifier, a signal present while the rails are off, an inductive transient — is an abs-max violation. The differential rating is a generous ±30 V, and TI promises no latch-up when the common-mode range is exceeded, but that promise is about graceful recovery inside the ratings, not permission to exceed them.
No guaranteed bandwidth, and the slew rate has no minimum
Slew rate is 0.5 V/µs typical at unity gain, with no specified minimum for the LM741 or LM741C. Bandwidth appears only in the LM741A table — 0.437 MHz min / 1.5 MHz typ — and even that is footnoted as calculated from BW (MHz) = 0.35/Rise Time (µs), not measured. Because the purchasable grade is the C (see below), your design math rests entirely on typicals. Large fast signals turn into slew-limited ramps well before any small-signal bandwidth figure suggests trouble; if the loop needs a guaranteed gain-bandwidth product, pick a part that publishes one.
Derate the 500 mW rating; the C grade's junction limit is 100 °C
Absolute maximum power dissipation is 500 mW, and footnote 4 requires derating at elevated temperatures per TJ = TA + (θJA × PD). θJA is 100 °C/W for the PDIP, and the LM741C's junction maximum is 100 °C — not the 150 °C of the full-temperature grades — so headroom vanishes quickly in a warm enclosure. The output is short-circuit protected and rated for continuous short duration at 25 mA typical short-circuit current, but a sustained short is steady dissipation that counts against the same budget. The TO-99 package is worse at 170 °C/W, though no TO-99 orderables remain anyway.
The only part you can buy is the 0–70 °C LM741C
The datasheet specifies the LM741 and LM741A over −55 to 125 °C, but the Package Option Addendum (10-Nov-2025) lists Active orderables only for the commercial C grade in PDIP (the LM741CN/NOPB family) plus wafer sale — no TO-99, no CDIP, no full-temperature grades. Design to C-grade numbers: 6 mV maximum offset, ±18 V maximum supply, 0 to 70 °C. And watch one inconsistency: the addendum lists one orderable at −40 to 85 °C while the datasheet's recommended operating conditions limit the LM741C to 0 to 70 °C. Trust the datasheet, not the addendum column.
Key specifications
| Parameter | Value | Source |
|---|---|---|
| Supply voltage (recommended) | +/-10 V min / +/-15 V nom / +/-22 V max (LM741, LM741A); +/-10 V min / +/-15 V nom / +/-18 V max (LM741C) | SNOSC25D Rev D, Section 6.3 Recommended Operating Conditions |
| Operating temperature (recommended) | -55 to 125 C (LM741, LM741A); 0 to 70 C (LM741C) | SNOSC25D Rev D, Section 6.3 Recommended Operating Conditions |
| Input offset voltage | 1 mV typ / 5 mV max (LM741, TA = 25 C, RS <= 10 kOhm); 2 mV typ / 6 mV max (LM741C, TA = 25 C, RS <= 10 kOhm) | SNOSC25D Rev D, Sections 6.5 Electrical Characteristics LM741 and 6.7 Electrical Characteristics LM741C |
| Input bias current | 80 nA typ / 500 nA max (TA = 25 C; same values for LM741 and LM741C) | SNOSC25D Rev D, Sections 6.5 and 6.7 Electrical Characteristics |
| Slew rate | 0.5 V/us typ (TA = 25 C, unity gain; LM741 and LM741C); LM741A grade: 0.3 min / 0.7 typ V/us | SNOSC25D Rev D, Sections 6.5, 6.6, and 6.7 Electrical Characteristics |
| Output voltage swing | VS = +/-15 V: +/-12 V min / +/-14 V typ (RL >= 10 kOhm); +/-10 V min / +/-13 V typ (RL >= 2 kOhm) (same for LM741 and LM741C; not rail-to-rail) | SNOSC25D Rev D, Sections 6.5 and 6.7 Electrical Characteristics |
| Supply current | 1.7 mA typ / 2.8 mA max (TA = 25 C) | SNOSC25D Rev D, Sections 6.5 and 6.7 Electrical Characteristics |
| Input voltage (abs max) | +/-15 V (for supply voltages less than +/-15 V, the absolute maximum input voltage is equal to the supply voltage) | SNOSC25D Rev D, Section 6.1 Absolute Maximum Ratings, footnote 5 |
| Differential input voltage (abs max) | +/-30 V | SNOSC25D Rev D, Section 6.1 Absolute Maximum Ratings |
| Power dissipation (abs max) | 500 mW (derate at elevated temperatures per TJ = TA + (thetaJA x PD)) | SNOSC25D Rev D, Section 6.1 Absolute Maximum Ratings, footnote 4 |
| Junction temperature (abs max) | 150 C (LM741, LM741A); 100 C (LM741C) | SNOSC25D Rev D, Section 6.1 Absolute Maximum Ratings |
| Thermal resistance (junction to ambient) | 100 C/W (P PDIP-8); 100 C/W (NAB CDIP-8); 170 C/W (LMC TO-99-8) | SNOSC25D Rev D, Section 6.4 Thermal Information |
| Output short circuit | 25 mA typ output short circuit current (TA = 25 C); output short circuit duration continuous | SNOSC25D Rev D, Sections 6.5 and 6.7 Electrical Characteristics; Section 6.1 Absolute Maximum Ratings |
| Input voltage range | +/-12 V min / +/-13 V typ (VS = +/-15 V; LM741 over TAMIN to TAMAX, LM741C at TA = 25 C) | SNOSC25D Rev D, Sections 6.5 and 6.7 Electrical Characteristics |
| Offset adjustment range | +/-15 mV typ (TA = 25 C, VS = +/-20 V), via offset null pins 1 and 5 | SNOSC25D Rev D, Sections 6.5 and 6.7 Electrical Characteristics; Section 5 Pin Functions |
Verified against the manufacturer datasheet on 2026-07-10. Confirm the current revision before production use.
Alternatives
- TL071: the usual drop-in upgrade: TI JFET-input single op amp in the same 8-pin pinout with offset null on pins 1/5, much higher slew rate and far lower input bias current.
- OPA171: modern TI 36-V general-purpose op amp (single/dual/quad family); the typical new-design choice where the 741's wide supply range is what you actually needed.
- LM358B: low-cost dual general-purpose op amp; single-supply capable with input range to ground, but no offset-null pins.
- UA741: TI's other 741-core single op amp; same pinout and equally legacy — a substitute for sustaining old designs, not an upgrade.
Common questions
- Can the LM741 run on a single supply?
- The datasheet allows single or dual supply, but the recommended supply range starts at ±10 V and the same total applies single-ended, far above logic rails. The part is also nowhere near rail-to-rail: at ±15 V the guaranteed input range is ±12 V and the output swing is ±12 V min into 10 kΩ. For real single-supply work at logic voltages use an LM358-class part or a modern CMOS op amp such as the TLV9002.
- What is the gain-bandwidth product of the LM741?
- TI's current datasheet does not specify one for the LM741 or LM741C. Only the LM741A grade carries a bandwidth spec — 0.437 MHz min / 1.5 MHz typ — and it is footnoted as calculated from BW (MHz) = 0.35/Rise Time (µs), not measured. Slew rate is 0.5 V/µs typical, with a minimum (0.3 V/µs) only on the A grade. If your design needs a guaranteed GBW, use a part that publishes one.
- What are pins 1 and 5 on the LM741?
- Offset null. A trim network between them cancels the input offset voltage — 1 mV typ / 5 mV max for the LM741, 2 mV typ / 6 mV max for the LM741C — with an adjustment range of ±15 mV typical at ±20 V supplies. If you don't trim, leave them unconnected.
- Should I use the LM741 in a new design?
- No. It is still active and cheap, but the TL071 drops into the same 8-pin pinout with offset null on pins 1/5 and brings much higher slew rate and far lower input bias current, and the OPA171 family covers the 741's wide supply range in a modern part. Reserve the LM741 for repairs, faithful reproductions, and coursework that calls for it by name.