LM7321MFX/NOPB
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | SC-74A, SOT-753 |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C |
| Current - Supply | 1.1mA |
| Output Type | Rail-to-Rail |
| Number of Circuits | 1 |
| Slew Rate | 18V/µs |
| Gain Bandwidth Product | 20 MHz |
| Supplier Device Package | SOT-23-5 |
| Current - Input Bias | 1.1 µA |
| Amplifier Type | General Purpose |
| Voltage - Input Offset | 700 µV |
| Current - Output / Channel | 100 mA |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | LM7321 |
| REACH Status | REACH Unaffected |
| Standard Package | 3,000 |
| ECCN | EAR99 |
| HTSUS | 8542.33.0001 |
| Voltage - Supply Span (Min) | 2.5 V |
| Voltage - Supply Span (Max) | 32 V |
LM7321MFX/NOPB General Purpose Amplifier 1 Circuit Rail-to-Rail
The LM7321MFX/NOPB from Texas Instruments is a high-performance, single-channel operational amplifier designed for wide supply voltage operation and exceptional output current capability. This device operates from a wide supply voltage range of 2.5V to 32V (or ±1.25V to ±16V for dual supplies), making it versatile for both low-voltage and high-voltage systems. It features true rail-to-rail input and output (RRIO) performance, allowing the input common-mode voltage to extend 0.3V beyond the supply rails and the output to swing within 300mV of the rails. A key highlight is its high output current drive of up to 100mA, combined with the unique ability to drive unlimited capacitive loads without external compensation or risk of oscillation. With a gain bandwidth product of 20MHz and a fast slew rate of 18V/µs, it maintains high-speed performance while consuming a moderate supply current of 1.1mA per amplifier.
The architecture of the LM7321 is built on a robust CMOS process optimized for high output current and wide voltage swings. Its input stage is designed for rail-to-rail operation, utilizing complementary input pairs to maintain a constant transconductance (gm) across the entire input common-mode range, which minimizes distortion and ensures stable performance. The output stage is a class-AB configuration capable of sourcing and sinking significant current, a feature that sets it apart from many general-purpose op-amps. The device is internally compensated for unity-gain stability, yet it exhibits remarkable stability when driving large capacitive loads, a common challenge in motor drive and cable driving applications.
Alternative Current Op Amp Models
● LMV321: A lower-power, lower-bandwidth alternative from Texas Instruments with rail-to-rail output, ideal for battery-powered applications where power consumption is more critical than speed.
● TSV324: STMicroelectronics' quad operational amplifier offering rail-to-rail input/output with similar voltage ranges, suitable for designs requiring multiple channels in a single package.
● MCP624: Microchip's low-power op-amp with rail-to-rail I/O, optimized for extended battery life in portable devices with lower current drive requirements.
● OPA344: Texas Instruments' precision, low-noise op-amp with RRIO, offering lower offset voltage and noise for high-accuracy signal conditioning.
● NCS2003: onsemi's operational amplifier featuring high slew rate and rail-to-rail output, positioned as a direct functional replacement for general-purpose amplification.
