Overview
The LMH6703MFX/NOPB is a high-performance, wideband operational amplifier designed by Texas Instruments. This device is optimized for ultra-high resolution video systems and wide dynamic range applications, requiring exceptional signal fidelity. The LMH6703 features a current feedback architecture, which provides a practical gain range of ±1 to ±10 and stable operation without external compensation, even at unity gain. It is particularly suited for applications demanding low harmonic distortion and high bandwidth.
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 Referred Noise | 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° | |
| Input Offset Voltage | ±1.5 to ±9 mV | |
| Input Bias Current | −7 to −23 µA (Non-Inverting), −2 to −44 µA (Inverting) | |
| Enable/Disable Time | 10 ns | |
| Output Glitch | 50 mVPP | |
| Package Types | SOT-23-6, SOIC-8 |
Key Features
- High bandwidth of 1.2 GHz at a gain of 2
- Low harmonic distortion: −69/−90 dBc at 20 MHz
- Low input referred noise: 2.3 nV/√Hz
- Fast slew rate: 4500 V/μs
- Low differential gain and phase: 0.01%/0.02°
- Shutdown feature with low current consumption in disabled state
- Stable operation without external compensation
- Optimized for high-speed flash A/D and D/A converters
Applications
- RGB Video Driver
- High Resolution Projectors
- Flash A/D Driver
- D/A Transimpedance Buffer
- Wide Dynamic Range IF Amp
- Radar/Communication Receivers
- DDS Post-Amps
- Line Driver
Q & A
- What is the bandwidth of the LMH6703 at a gain of 2?
The LMH6703 has a bandwidth of 1.2 GHz at a gain of 2.
- What are the typical harmonic distortion levels for the LMH6703?
The LMH6703 has harmonic distortion levels of −69/−90 dBc at 20 MHz.
- What is the input referred noise of the LMH6703?
The input referred noise is 2.3 nV/√Hz.
- What is the slew rate of the LMH6703?
The slew rate is 4500 V/μs.
- 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 package types available for the LMH6703?
The LMH6703 is available in SOT-23-6 and SOIC-8 packages.
- What is the supply current when the LMH6703 is enabled?
The supply current when enabled is 11 mA.
- How long does it take to enable or disable the LMH6703?
The enable and disable times are both 10 ns.
- What is the output glitch during shutdown?
The output glitch during shutdown is 50 mVPP.
- In what applications is the LMH6703 commonly used?
The LMH6703 is commonly used in RGB video drivers, high-resolution projectors, flash A/D drivers, D/A transimpedance buffers, wide dynamic range IF amps, radar/communication receivers, DDS post-amps, and line drivers.
