Overview
The LM7301 operational amplifier, produced by onsemi, is a high-performance device designed for a wide range of applications. It features a rail-to-rail input and output, low power consumption, and a wide gain-bandwidth product of 4 MHz. This amplifier operates on supply voltages ranging from 1.8 V to 32 V, making it suitable for various low-power systems. The LM7301 is particularly beneficial in portable applications due to its low supply current of 0.6 mA, which helps in extending battery life. Its ability to drive large capacitive loads and its low distortion characteristics make it an excellent choice for precision applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VS) | 1.8 | 32 | V | |
| Operating Temperature Range (TA) | -40 | 85 | °C | |
| Input Offset Voltage (VOS) | 0.03 | 6 | 8 | mV |
| Input Bias Current (IIB) | 65 | 200 | 250 | nA |
| Supply Current (IS) | 0.6 | 1.1 | 1.24 | mA |
| Gain-Bandwidth Product (GBW) | 4 | MHz | ||
| Slew Rate (SR) | 1.25 | V/μs | ||
| Power Supply Rejection Ratio (PSRR) | 87 | 104 | dB | |
| Common Mode Rejection Ratio (CMRR) | 60 | 93 | dB | |
| Output Short Circuit Current | 8.7 (Sourcing), 8.7 (Sinking) | mA |
Key Features
- Wide Supply Range: Operates on supplies from 1.8 V to 32 V.
- Rail-to-Rail Input and Output: Input common mode voltage range extends beyond the rails, and full rail-to-rail output swing.
- Low Power Consumption: Supply current of 0.6 mA at 5 V supply voltage.
- High Gain-Bandwidth Product: 4 MHz gain-bandwidth product.
- High PSRR and CMRR: Power supply rejection ratio of 104 dB and common mode rejection ratio of 93 dB.
- Capacitive Load Driving Capability: Can drive large capacitive loads with minimal phase margin reduction.
- Low Distortion: Total harmonic distortion (THD) of 0.004% at 10 kHz.
- Space-Saving Package: Available in a 5-pin TSOP-5 package, ideal for portable and space-constrained applications.
Applications
- Portable Instrumentation: Suitable for handheld devices and remote controls due to its low power consumption and high performance.
- Signal Conditioning and ADC Buffers: Ideal for signal conditioning and buffering in analog-to-digital converters.
- Active Filters: Used in active filter circuits requiring high precision and low power consumption.
- Modems and Telecom Applications: Excellent for driving opto-isolator circuits in modems to achieve line isolation and reduce noise.
- PCMCIA Cards and Personal Computers: Suitable for use in PCMCIA cards and remote microphones in personal computers.
Q & A
- What is the supply voltage range of the LM7301?
The LM7301 operates on supply voltages ranging from 1.8 V to 32 V.
- What is the typical supply current of the LM7301 at 5 V supply voltage?
The typical supply current is 0.6 mA at 5 V supply voltage.
- What is the gain-bandwidth product of the LM7301?
The gain-bandwidth product is 4 MHz.
- Can the LM7301 drive large capacitive loads?
Yes, the LM7301 can drive large capacitive loads with minimal phase margin reduction.
- What is the typical power supply rejection ratio (PSRR) of the LM7301?
The typical PSRR is 104 dB.
- What is the typical common mode rejection ratio (CMRR) of the LM7301?
The typical CMRR is 93 dB.
- What is the total harmonic distortion (THD) of the LM7301 at 10 kHz?
The THD is 0.004% at 10 kHz.
- In what package is the LM7301 available?
The LM7301 is available in a 5-pin TSOP-5 package.
- Is the LM7301 suitable for portable applications?
Yes, the LM7301 is suitable for portable applications due to its low power consumption and high performance.
- Can the LM7301 be used in modems for line isolation?
Yes, the LM7301 is excellent for driving opto-isolator circuits in modems to achieve line isolation.
