Overview
The LMH6642MFX/NOPB is a single-channel, low-power operational amplifier from Texas Instruments. It belongs to the LMH664X family of true single supply voltage feedback amplifiers. This device is known for its high speed, low distortion, and high output current, making it suitable for a wide range of industrial and commercial applications. The LMH6642MFX/NOPB offers exceptional performance at a low cost and reduced power consumption, making it an ideal choice for various applications requiring high bandwidth and low power consumption.
Key Specifications
| Specification | Value |
|---|---|
| Package | SOT-23 (DBV) with 5 pins |
| Operating Temperature Range (°C) | -40 to 85 |
| Supply Voltage Range (V) | 2.7 to 12.8 |
| Bandwidth (−3 dB BW) at AV = +1 (MHz) | 130 |
| Slew Rate (V/µs) at AV = −1 | 130 |
| Supply Current (no load) per amplifier (mA) | 2.7 |
| Output Short Circuit Current (mA) | +115 to 145 |
| Linear Output Current (mA) | ±75 |
| Input Common Mode Voltage Range | 0.5 V beyond V−, 1 V from V+ |
| Output Voltage Swing | 40 mV from rails |
| Input Voltage Noise at 100 kHz (nV/√Hz) | 17 |
| Input Current Noise at 100 kHz (pA/√Hz) | 0.9 |
| THD at 5 MHz, RL = 2 kΩ, VO = 2 V PP, AV = +2 (dBc) | −62 |
| Settling Time (ns) | 68 |
| Overdrive Recovery Time (ns) | 100 |
Key Features
- High speed with a bandwidth of 130 MHz and a slew rate of 130 V/µs.
- Low distortion with a THD of −62 dBc at 5 MHz.
- High output current of approximately 75 mA, capable of driving heavy loads.
- Rail-to-rail output voltage swing, extending to within 40 mV of either supply rail.
- Input common mode voltage range extends to 0.5 V below V− and 1 V from V+.
- Low power consumption with a supply current of 2.7 mA per amplifier.
- Fast settling time of 68 ns and overdrive recovery time of 100 ns.
- No output phase reversal with CMVR exceeded.
- Output short circuit protected.
- Professional quality video performance with low differential gain and phase.
Applications
- ADC buffer applications.
- High-frequency filter applications.
- Industrial and commercial applications requiring high bandwidth and low power consumption.
- Video signal processing and amplification due to its professional quality video performance.
- Low voltage applications where a wide dynamic range is necessary.
Q & A
- What is the bandwidth of the LMH6642MFX/NOPB operational amplifier?
The bandwidth of the LMH6642MFX/NOPB is 130 MHz at a gain of +1.
- What is the slew rate of the LMH6642MFX/NOPB?
The slew rate of the LMH6642MFX/NOPB is 130 V/µs.
- What is the supply voltage range for the LMH6642MFX/NOPB?
The supply voltage range for the LMH6642MFX/NOPB is from 2.7 V to 12.8 V.
- What is the maximum output current of the LMH6642MFX/NOPB?
The maximum output current of the LMH6642MFX/NOPB is approximately ±75 mA.
- What is the input common mode voltage range for the LMH6642MFX/NOPB?
The input common mode voltage range extends to 0.5 V below V− and 1 V from V+.
- Is the LMH6642MFX/NOPB protected against output short circuits?
- What is the settling time of the LMH6642MFX/NOPB?
The settling time of the LMH6642MFX/NOPB is 68 ns.
- What are the typical applications of the LMH6642MFX/NOPB?
The LMH6642MFX/NOPB is typically used in ADC buffer applications, high-frequency filter applications, and video signal processing due to its high bandwidth and low distortion.
- What is the operating temperature range of the LMH6642MFX/NOPB?
The operating temperature range of the LMH6642MFX/NOPB is from -40°C to 85°C.
- Does the LMH6642MFX/NOPB have any phase reversal issues when the common mode voltage range is exceeded?
No, the LMH6642MFX/NOPB does not have output phase reversal with CMVR exceeded.
