Overview
The LMH6703MAX/NOPB, produced by Texas Instruments, is a high-performance, wideband, DC-coupled monolithic operational amplifier. It is specifically designed for ultra-high resolution video systems and wide dynamic range applications requiring exceptional signal fidelity. The LMH6703 benefits from a current feedback architecture, offering a practical gain range of ±1 to ±10 and stable operation without external compensation, even at unity gain.
This amplifier is optimized for low harmonic distortion and high bandwidth, making it ideal for applications such as RGB video drivers, high-resolution projectors, flash A/D drivers, D/A transimpedance buffers, and wide dynamic range IF amplifiers.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| -3 dB Bandwidth (VOUT = 0.5 VPP, AV = 2) | 1.2 GHz | |
| 2nd/3rd Harmonics (20 MHz, SOT-23) | -69/-90 dBc | |
| Input Noise Voltage | 2.3 nV/√Hz | |
| Slew Rate | 4500 V/μs | |
| Supply Current (Enabled) | 11 mA | |
| Output Current | ±90 mA | |
| Differential Gain and Phase | 0.01%/0.02° | |
| Operating Temperature Range | -40 to 85 °C | |
| Supply Voltage Range | ±4 to ±6 V | |
| Enable/Disable Time | 10 ns |
Key Features
- High bandwidth: 1.2 GHz -3 dB bandwidth at a gain of 2.
- Low harmonic distortion: -69 dBc and -90 dBc for 2nd and 3rd harmonics at 20 MHz.
- Low noise: 2.3 nV/√Hz input referred noise.
- Fast slew rate: 4500 V/μs.
- Low differential gain and phase: 0.01%/0.02°.
- Shutdown feature with low disable current.
- Stable operation without external compensation.
- Available in SOT-23-6 and SOIC-8 packages.
Applications
- RGB video drivers.
- High-resolution projectors.
- Flash A/D drivers.
- D/A transimpedance buffers.
- Wide dynamic range IF amplifiers.
- Radar and communication receivers.
- DDS post-amplifiers.
- Line drivers.
Q & A
- What is the -3 dB bandwidth of the LMH6703?
The -3 dB bandwidth of the LMH6703 is 1.2 GHz at a gain of 2 and VOUT = 0.5 VPP.
- What are the typical harmonic distortion levels for the LMH6703?
The LMH6703 has harmonic distortion levels of -69 dBc and -90 dBc for 2nd and 3rd harmonics at 20 MHz.
- What is the input noise voltage of the LMH6703?
The input noise voltage of the LMH6703 is 2.3 nV/√Hz.
- What is the slew rate of the LMH6703?
The slew rate of the LMH6703 is 4500 V/μs.
- What is the supply current when the LMH6703 is enabled?
The supply current when the LMH6703 is enabled is typically 11 mA.
- What is the output current capability of the LMH6703?
The output current capability of the LMH6703 is ±90 mA.
- Does the LMH6703 require external compensation for stable operation?
No, the LMH6703 does not require external compensation for stable operation, even at unity gain.
- What are the typical applications of the LMH6703?
The LMH6703 is typically used in RGB video drivers, high-resolution projectors, flash A/D drivers, D/A transimpedance buffers, and wide dynamic range IF amplifiers.
- What packages is the LMH6703 available in?
The LMH6703 is available in SOT-23-6 and SOIC-8 packages.
- How does the shutdown feature work on the LMH6703?
The LMH6703 has a shutdown feature that reduces the supply current to a very low level (typically 0.2 mA) when the shutdown pin is set low.
