Overview
The LMH6555SQ/NOPB is a high-performance differential amplifier manufactured by Texas Instruments. Designed for precision signal amplification, this component is ideal for applications requiring high bandwidth and low distortion. Its market positioning targets advanced communication systems, test and measurement equipment, and high-speed data acquisition systems. The LMH6555SQ/NOPB stands out for its exceptional gain flatness, high slew rate, and low harmonic distortion, making it a competitive choice in the differential amplifier category.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Manufacturer | Texas Instruments | - | - |
| Product Category | Differential Amplifier | - | - |
| Package/Case | LLP-16 | - | - |
| Bandwidth (-3 dB) | 1.2 | GHz | VOUT = 0.80 VPP |
| Gain Flatness (±0.5 dB) | 330 | MHz | VOUT = 0.80 VPP |
| Slew Rate | 1300 | V/μs | - |
| 2nd/3rd Harmonic Distortion | -53/-54 | dBc | 750 MHz |
| Fixed Gain | 13.7 | dB | - |
| Supply Current | 120 | mA | - |
| Supply Voltage | 3.3 ±10% | V | Single Supply |
| Adjustable Common-Mode Output Voltage | Yes | - | - |
Key Features
- High bandwidth of 1.2 GHz ensures accurate signal amplification for high-frequency applications.
- Excellent gain flatness (±0.5 dB) up to 330 MHz maintains signal integrity.
- High slew rate of 1300 V/μs enables rapid signal response.
- Low harmonic distortion (-53/-54 dBc at 750 MHz) ensures minimal signal degradation.
- Fixed gain of 13.7 dB simplifies design and reduces external component requirements.
- Single 3.3V power supply operation enhances compatibility with modern systems.
- Adjustable common-mode output voltage provides flexibility in various applications.
Applications
The LMH6555SQ/NOPB is widely used in advanced electronic systems, including:
- Differential ADC Drivers: Enhances the performance of high-speed analog-to-digital converters.
- Single-Ended to Differential Converters: Converts single-ended signals to differential signals with minimal distortion.
- IF Amplifiers: Boosts intermediate frequency signals in communication systems.
- Communication Receivers: Ensures accurate signal amplification in RF and wireless systems.
- Oscilloscope Front-Ends: Provides high-fidelity signal amplification for test and measurement equipment.
Q & A
1. What is the bandwidth of the LMH6555SQ/NOPB?
The bandwidth is 1.2 GHz at -3 dB with an output voltage of 0.80 VPP.
2. What is the gain flatness of this amplifier?
The gain flatness is ±0.5 dB up to 330 MHz.
3. What is the slew rate of the LMH6555SQ/NOPB?
The slew rate is 1300 V/μs.
4. What is the harmonic distortion at 750 MHz?
The 2nd and 3rd harmonic distortions are -53 dBc and -54 dBc, respectively.
5. What is the fixed gain of this amplifier?
The fixed gain is 13.7 dB.
6. What is the supply current required?
The supply current is 120 mA.
7. What is the operating voltage range?
The amplifier operates on a single 3.3V ±10% supply.
8. Does this amplifier support adjustable common-mode output voltage?
Yes, it supports adjustable common-mode output voltage.
9. What is the package type of the LMH6555SQ/NOPB?
It is available in an LLP-16 package.
10. What are the typical applications of this amplifier?
Typical applications include differential ADC drivers, single-ended to differential converters, IF amplifiers, communication receivers, and oscilloscope front-ends.
