Overview
The LMH™6703 is a very wideband, DC-coupled monolithic operational amplifier designed by Texas Instruments. It is specifically tailored for ultra-high resolution video systems and wide dynamic range systems that require exceptional signal fidelity. The LMH6703 benefits from current feedback architecture, offering a practical gain range of ±1 to ±10 while providing stable operation without external compensation, even at unity gain. This amplifier is ideal for applications requiring high-speed and low distortion, such as driving high-speed flash A/D and D/A converters, and supporting wide dynamic range systems like radar and communication receivers.
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 | |
| Low Noise | 2.3 nV/√Hz | |
| Fast Slew Rate | 4500 V/μs | |
| Supply Current | 11 mA | |
| Output Current | 90 mA | |
| Low Differential Gain and Phase | 0.01%/0.02° | |
| Operating Temperature Range | −40 to 85 °C | |
| Package | SOT-23 (DBV) with 6 pins | |
| Supply Voltage | ±4 to ±6 V |
Key Features
- Very wideband operation with a −3-dB bandwidth of 1.2 GHz
- Low harmonic distortion: 2nd/3rd harmonics at −69/−90 dBc at 20 MHz
- Low input referred noise: 2.3 nV/√Hz
- Fast slew rate: 4500 V/μs
- Low supply current: 11 mA
- High output current: 90 mA
- Low differential gain and phase: 0.01%/0.02°
- Shutdown feature with low disable current
- Stable operation without external compensation, even at unity gain
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 −3-dB bandwidth of the LMH6703?
The −3-dB bandwidth of the LMH6703 is 1.2 GHz when VOUT = 0.5 VPP and AV = 2.
- What are the harmonic distortion levels for the LMH6703?
The 2nd and 3rd harmonic distortions are −69/−90 dBc at 20 MHz for the SOT-23 package.
- 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.
- What is the supply current of the LMH6703?
The supply current is 11 mA when enabled.
- What is the output current capability of the LMH6703?
The output current is up to 90 mA.
- What are the typical applications of the LMH6703?
Typical applications include 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.
- What is the operating temperature range of the LMH6703?
The operating temperature range is −40 to 85 °C.
- What package options are available for the LMH6703?
The LMH6703 is available in SOT-23 (DBV) with 6 pins and SOIC (8) packages.
- Does the LMH6703 have a shutdown feature?
Yes, the LMH6703 has a shutdown feature with low disable current.
