Overview
The LM7322MME/NOPB is a dual rail-to-rail input and output operational amplifier produced by Texas Instruments. This device is part of the LM732xx family, known for its wide operating voltage range, high output current, and ability to drive unlimited capacitive loads without oscillations. The LM7322 is designed to operate efficiently, requiring only 1 mA of supply current per op amp while achieving a high slew rate of 18 V/µs and a unity gain bandwidth of 20 MHz. It is fully specified for operation at various supply voltages, including 2.7 V, ±5 V, and ±15 V, making it versatile for different applications.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage (VS = V+ - V−) | 2.5 | 32 | V | |
| Temperature Range | −40 | 125 | °C | |
| Output Current | +65 mA / −100 mA | mA | ||
| Slew Rate | 18 | V/µs | ||
| Unity Gain Frequency | 20 | MHz | ||
| Input Common-Mode Voltage | 0.3-V Beyond Rails | V | ||
| Input Voltage Noise | 15 | nV/√Hz | ||
| Input Current Noise | 1.3 | pA/√Hz | ||
| Supply Current/Channel | 1.1 | mA | ||
| Total Harmonic Distortion + Noise | −86 | dB |
Key Features
- Wide Supply Voltage Range: Operates from 2.5 V to 32 V.
- High Output Current: Capable of sourcing up to +65 mA and sinking up to −100 mA.
- High Slew Rate and Bandwidth: Achieves an 18 V/µs slew rate and a 20 MHz unity gain bandwidth.
- Unlimited Capacitive Load Tolerance: Can drive unlimited capacitive loads without oscillations.
- Low Supply Current: Requires only 1.1 mA of supply current per op amp.
- Low Noise: Input voltage noise of 15 nV/√Hz and input current noise of 1.3 pA/√Hz.
- High Performance Over Temperature Range: Fully specified from −40°C to 125°C.
Applications
The LM7322 is suitable for a variety of applications due to its robust performance characteristics. These include:
- Industrial Applications: High reliability and performance over a wide temperature range make it ideal for industrial use.
- Automotive Applications: Can withstand the harsh conditions of automotive environments.
- Audio and Video Equipment: Low distortion and high bandwidth make it suitable for audio and video applications.
- Medical Devices: High accuracy and low noise are beneficial for medical device applications.
- General Purpose Amplification: Versatile enough for various general-purpose amplification needs.
Q & A
- What is the supply voltage range of the LM7322?
The LM7322 operates from a supply voltage range of 2.5 V to 32 V.
- What is the maximum output current of the LM7322?
The LM7322 can source up to +65 mA and sink up to −100 mA.
- What is the slew rate of the LM7322?
The slew rate of the LM7322 is 18 V/µs.
- Can the LM7322 drive unlimited capacitive loads?
Yes, the LM7322 can drive unlimited capacitive loads without oscillations.
- What is the typical supply current per op amp for the LM7322?
The typical supply current per op amp is 1.1 mA.
- What is the input voltage noise of the LM7322?
The input voltage noise is 15 nV/√Hz.
- What is the temperature range over which the LM7322 is specified?
The LM7322 is fully specified from −40°C to 125°C.
- What are some common applications of the LM7322?
Common applications include industrial, automotive, audio and video equipment, medical devices, and general-purpose amplification.
- Is the LM7322 suitable for high-reliability applications?
Yes, the LM7322 is designed for high reliability and performance, making it suitable for demanding applications.
- What is the unity gain bandwidth of the LM7322?
The unity gain bandwidth of the LM7322 is 20 MHz.
