Texas Instruments LinCMOS™ series, quad general-purpose op-amp, LM2902MTX/NOPB, 14-TSSOP package, 1 MHz gain bandwidth, 3 V to 32 V supply span, -40°C to 85°C operating temperature.
| Parameter / Attribute | Specification / Value |
|---|---|
| Series | LinCMOS™ |
| Mounting | Surface Mount |
| Amplifier type | General Purpose |
| Voltage - input offset | 2 mV |
| Voltage - supply span | 32 V |
| Current - supply | 1.5mA |
| Current - input bias | 45 nA |
| Current - output (Channel) | 40 mA |
| Operating temperature | -40°C~85°C(TJ) |
| Gain bandwidth product | 1 MHz |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | 14-TSSOP (0.173\", 4.40mm Width) |
| Number of circuits | 4 |
Package: SOIC-14 / DIP-14 / TSSOP-14 · Pin-compatible replacements with immediate Shenzhen spot stock
The LM324 is the default quad op-amp of single-supply design: input common mode includes ground, output swings to near ground, and it runs from a 3V to 32V rail. It is one of the few analog parts in true continuous mass production across TI, ST, onsemi and every second-source fab, so availability is not the problem. The two real issues are picking the right grade for the rail (LM2902 caps at 26V, the B-suffix die at 36V, the LV family at 5.5V) and not treating the similarly-packaged LM339 quad comparator as a substitute - it is a different pinout and a different output stage.
Wide-Temperature Grade of the Same Amplifier
Shenzhen Spot Stock (24-48h Dispatch)
The LM324 die specified for the extended automotive/industrial temperature range (about -40 to +125 degC) with the supply capped at 26V instead of 32V.
3V to 26V single supply versus 3V to 32V on the LM324; same input and output swing behavior.
Current-Generation Die at Commodity Pricing
Shenzhen Spot Stock (24-48h Dispatch)
The B-suffix redesign: supply rating raised to 36V, lower supply current, improved ESD structure, same functional behavior and pinout.
3V to 36V; same common-mode and output swing characteristics of the family.
Modern Low-Voltage Family Member
Shenzhen Spot Stock (24-48h Dispatch)
A new 2.7V to 5.5V low-voltage design in the same 14-pin footprint - rail-to-rail output, far faster than the original, but a different silicon.
2.7V to 5.5V only - it will be destroyed on a 12V or 24V rail that the LM324 handled.
Same Die, Two Channels - Not a Same-Socket Part
Shenzhen Spot Stock (24-48h Dispatch)
The dual version of the same single-supply amplifier: identical electrical behavior per channel, in an 8-pin body.
3V to 32V (same family behavior); one output per channel less than the quad.
Q: What is the difference between LM358 and LM324?
A: Channel count and package: LM358 is the dual (SOIC-8 / DIP-8) and LM324 the quad (SOIC-14 / DIP-14) version of the same single-supply amplifier design. Electrically, one channel of each behaves the same way.
Q: Can I use an LM339 comparator instead of an LM324 op-amp?
A: No. Different pinout (supply on pin 3 versus pin 4), open-collector output that cannot source current, and no internal compensation for feedback operation. The two 14-pin chips look like cousins on a schematic and are not interchangeable.
Q: How do I choose between LM324, LM2902 and LM324B?
A: By rail and temperature: LM324 for 32V commercial use, LM2902 for wider temperature range at 26V, LM324B for new designs (36V, current die). LM324LV only for 3.3V / 5V designs built new.
The Texas Instruments LM2902MTX/NOPB is a quad general-purpose op-amp from the LinCMOS™ series, packaged in a 14-TSSOP (4.40 mm wide) for surface-mount assembly. The supply span runs from 3 V to 32 V single or split, covering common industrial rails (5 V, 12 V, 24 V) without needing a separate regulator for the op-amp supply.