Overview
The LMH6702MFX/NOPB is a high-performance, ultra-low distortion, wideband operational amplifier designed by National Semiconductor, now part of Texas Instruments. This monolithic operational amplifier is specifically tailored for wide dynamic range systems that demand exceptional signal fidelity. It utilizes National's current feedback architecture, ensuring unity gain stability at high speeds without the need for external compensation. The LMH6702 is ideal for applications requiring fast settling times, low noise, and minimal harmonic and intermodulation distortion.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Bandwidth (-3dB) | 1.7 GHz | VOUT = 0.5 VPP |
| Bandwidth (AV = 2V/V, VO = 2VPP) | 720 MHz | RL = 100Ω |
| 2nd and 3rd Harmonics | -100/-96 dBc | 5 MHz, SOT-23 |
| Input Referred Noise | 1.83 nV/√Hz | |
| Settling Time to 0.1% | 13.4 ns | |
| Slew Rate | 3100 V/μs | |
| Supply Current | 12.5 mA | |
| Output Current | 80 mA | |
| Intermodulation Distortion (75 MHz) | -67 dBc | |
| Supply Voltage | ±6.75 V | Maximum |
| Maximum Junction Temperature | +150°C | |
| Storage Temperature Range | -65°C to +150°C |
Key Features
- Ultra-low distortion and wideband operation, making it suitable for high-speed applications.
- Current feedback architecture providing unity gain stability without external compensation.
- Fast settling time to 0.1% in 13.4 ns and a fast slew rate of 3100 V/μs.
- Low input referred noise of 1.83 nV/√Hz and low harmonic and intermodulation distortion.
- Available in SOIC and SOT-23 packages, offering flexibility in design.
- Improved replacement for CLC409 and CLC449.
Applications
- Flash A/D Driver: Ideal for driving high-speed flash A/D converters.
- D/A Transimpedance Buffer: Suitable for high-speed D/A converters.
- Wide Dynamic Range IF Amp: Used in systems requiring wide dynamic range and high signal purity.
- Radar and Communication Receivers: Offers low noise and distortion, making it suitable for radar and communication systems.
- Line Driver: Can be used as a line driver due to its high output current and low distortion.
- High Resolution Video: Applicable in high-resolution video systems requiring low noise and high bandwidth.
Q & A
- What is the bandwidth of the LMH6702?
The LMH6702 has a -3dB bandwidth of 1.7 GHz when VOUT = 0.5 VPP.
- What is the input referred noise of the LMH6702?
The input referred noise is 1.83 nV/√Hz.
- How fast is the settling time of the LMH6702?
The settling time to 0.1% is 13.4 ns.
- What is the slew rate of the LMH6702?
The slew rate is 3100 V/μs.
- What are the typical applications of the LMH6702?
Typical applications include flash A/D drivers, D/A transimpedance buffers, wide dynamic range IF amps, radar and communication receivers, line drivers, and high-resolution video systems.
- What packages is the LMH6702 available in?
The LMH6702 is available in SOIC and SOT-23 packages.
- What is the maximum supply voltage for the LMH6702?
The maximum supply voltage is ±6.75 V.
- What is the maximum junction temperature for the LMH6702?
The maximum junction temperature is +150°C.
- Does the LMH6702 have built-in ESD protection?
The LMH6702 has limited built-in ESD protection. Proper handling and storage are necessary to prevent electrostatic damage.
- Is the LMH6702 recommended for new designs?
No, the LMH6702 is not recommended for new designs as it has been announced for discontinuation and is in a lifetime-buy period.
