Overview
The LMH6629MFE/NOPB is a high-speed, ultra-low noise operational amplifier designed and manufactured by Texas Instruments. This amplifier is tailored for applications that demand wide bandwidth, high gain, and low noise, such as in communication systems, test and measurement equipment, optical systems, and ultrasound systems. The LMH6629 operates on a supply voltage range of 2.7 V to 5.5 V and features an input common mode range that extends below ground, with outputs that swing to within 0.8 V of the rails. This makes it highly suitable for single supply applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 2.7 to 5.5 | V |
| Input Voltage Noise | 0.69 | nV/√Hz |
| Input Offset Voltage (Max. over Temperature) | ±0.8 | mV |
| Slew Rate | 1600 | V/μs |
| Bandwidth (-3dB) | 900 | MHz |
| Harmonic Distortion (HD2 @ f = 1 MHz, 2VPP) | -90 | dBc |
| Harmonic Distortion (HD3 @ f = 1 MHz, 2VPP) | -94 | dBc |
| Typical Supply Current | 15.5 | mA |
| Minimum Stable Gain | ≥4 or ≥10 V/V (selectable) | |
| Enable Time | 75 | ns |
| Output Current | ±250 | mA |
| Package Types | WSON-8, SOT-23-5 |
Key Features
- High-Speed Operation: The LMH6629 features a bandwidth of 900 MHz and a slew rate of 1600 V/μs, making it suitable for high-frequency applications.
- Ultra-Low Noise: With an input voltage noise of 0.69 nV/√Hz and input current noise of 2.6 pA/√Hz, this amplifier ensures precise signal processing in sensitive applications.
- Low Distortion: The amplifier has low harmonic distortion, with HD2 and HD3 values of -90 dBc and -94 dBc at 1 MHz, respectively.
- High Output Current: Capable of driving heavy loads up to ±250 mA, making it suitable for applications requiring high current drive.
- Selectable Gain: The WSON-8 package offers user-selectable internal compensation for minimum gains of 4 or 10 V/V, eliminating the need for external compensation capacitors.
- Power-Down Feature: The WSON-8 package includes a power-down enable/disable feature for power management.
Applications
- Communication Systems: Ideal for high-speed signal processing in communication equipment.
- Test and Measurement: Suitable for use in test and measurement instruments due to its high precision and low noise characteristics.
- Optical and Ultrasound Systems: Used in optical and ultrasound systems where high bandwidth and low noise are critical.
- Audio and Video Systems: Applicable in audio and video processing systems requiring high-speed and low-noise amplification.
- Data Acquisition Systems: Used in data acquisition systems where precision and high-speed signal processing are necessary.
- Medical and Imaging: Suitable for medical and imaging applications due to its high precision and low noise.
Q & A
- What is the supply voltage range of the LMH6629MFE/NOPB?
The supply voltage range is from 2.7 V to 5.5 V.
- What is the bandwidth of the LMH6629MFE/NOPB?
The bandwidth is 900 MHz.
- What is the slew rate of the LMH6629MFE/NOPB?
The slew rate is 1600 V/μs.
- What are the package types available for the LMH6629MFE/NOPB?
The available packages are WSON-8 and SOT-23-5.
- Does the LMH6629MFE/NOPB have a power-down feature?
Yes, the WSON-8 package includes a power-down enable/disable feature.
- What is the typical supply current of the LMH6629MFE/NOPB?
The typical supply current is 15.5 mA.
- What are the harmonic distortion values for the LMH6629MFE/NOPB?
The harmonic distortion values are HD2 = -90 dBc and HD3 = -94 dBc at 1 MHz.
- Can the LMH6629MFE/NOPB drive heavy loads?
Yes, it can drive loads up to ±250 mA.
- Is the LMH6629MFE/NOPB suitable for single supply applications?
Yes, it is suitable for single supply applications due to its input common mode range extending below ground and outputs swinging to within 0.8 V of the rails.
- What are some common applications of the LMH6629MFE/NOPB?
Common applications include communication systems, test and measurement, optical and ultrasound systems, audio and video systems, and data acquisition systems.[
