Overview
The LM8272MM/NOPB is a dual Rail-to-Rail Input and Output (RRIO) operational amplifier produced by Texas Instruments. This device is designed to operate with a wide supply voltage range and is particularly suited for applications requiring high output current drive and unlimited capacitive load tolerance. The LM8272 is ideal for low power and medium speed applications, including TFT-LCD flat panel VCOM driver applications, A/D converter buffers, and headphone amplifiers. It offers enhanced performance and ease of use, making it a versatile component for various electronic systems.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Range | 2.5 V to 24 V |
| GBWP (Gain-Bandwidth Product) | 15 MHz |
| Slew Rate | 15 V/µs |
| Supply Current per Channel | 0.95 mA |
| Output Current (1 V from rails) | ±65 mA |
| Output Short Circuit Current | ±130 mA |
| Input Common Mode Voltage Range | 0.3 V beyond rails |
| Input Voltage Noise | 15 nV/√Hz |
| Input Current Noise | 1.4 pA/√Hz |
| Package Type | 8-pin VSSOP |
| Operating Temperature Range | -40°C to 85°C |
Key Features
- Rail-to-Rail input and output capability
- High output current drive: ±65 mA (1 V from rails)
- Unlimited capacitive load drive capability
- Wide supply voltage range: 2.5 V to 24 V
- Low supply current: 0.95 mA per channel
- High slew rate: 15 V/µs
- High common mode rejection ratio: 50 dB
- No output phase reversal under input overload conditions
- Improved crossover distortion and constant supply current throughout the output voltage swing range
Applications
- TFT-LCD flat panel VCOM driver applications
- A/D converter buffers
- High side/low side sensing
- Headphone amplifiers
- Other low power and medium speed applications requiring ease of use and enhanced performance
Q & A
- What is the supply voltage range of the LM8272MM/NOPB?
The supply voltage range is 2.5 V to 24 V. - What is the typical supply current per channel for the LM8272MM/NOPB?
The typical supply current per channel is 0.95 mA. - What is the output current capability of the LM8272MM/NOPB?
The output current capability is ±65 mA (1 V from rails). - Does the LM8272MM/NOPB support unlimited capacitive load?
Yes, it supports unlimited capacitive load drive capability. - What is the slew rate of the LM8272MM/NOPB?
The slew rate is 15 V/µs. - What is the common mode rejection ratio of the LM8272MM/NOPB?
The common mode rejection ratio is 50 dB. - What are the typical applications of the LM8272MM/NOPB?
Typical applications include TFT-LCD flat panel VCOM driver applications, A/D converter buffers, high side/low side sensing, and headphone amplifiers. - What is the operating temperature range of the LM8272MM/NOPB?
The operating temperature range is -40°C to 85°C. - What package type is the LM8272MM/NOPB available in?
The LM8272MM/NOPB is available in an 8-pin VSSOP package. - Does the LM8272MM/NOPB have any special design considerations for capacitive loads?
Yes, it requires a combination of small ceramic and large tantalum or aluminum capacitors for proper supply decoupling to prevent oscillation under any load conditions.
