Overview
The LMH6552MAX/NOPB from Texas Instruments is a high-performance, fully differential amplifier designed to provide exceptional signal fidelity and wide large-signal bandwidth. This amplifier is specifically tailored for driving 8-bit to 14-bit high-speed data acquisition systems. Utilizing TI's proprietary differential current mode input stage architecture, the LMH6552 allows operation at gains greater than unity without compromising response flatness, bandwidth, harmonic distortion, or output noise performance. It can be configured as either a differential input to differential output or single-ended input to differential output gain block, and it supports both AC- and DC-coupled inputs, making it versatile for various applications including communication systems and high-speed oscilloscope front ends.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| –3 dB Small Signal Bandwidth at AV = 1 | 1.5 GHz | |
| –3 dB Large Signal Bandwidth at AV = 1 | 1.25 GHz | |
| Bandwidth at AV = 4 | 800 MHz | |
| 0.1 dB Flatness | 450 MHz | |
| Slew Rate | 3800 V/µs | |
| Settling Time to 0.1% | 10 ns | |
| Total Harmonic Distortion (THD) at 20 MHz | –90 dB | |
| Total Harmonic Distortion (THD) at 70 MHz | –74 dB | |
| Enable/Shutdown Pin Response Time | 20 ns | |
| Operating Voltage Range | 5 V to 12 V | |
| Package Options | 8-pin SOIC, 8-pin WSON |
Key Features
- High-performance, fully differential amplifier with exceptional signal fidelity and wide large-signal bandwidth.
- Supports gains greater than unity without sacrificing response flatness, bandwidth, harmonic distortion, or output noise performance.
- Configurable as either a differential input to differential output or single-ended input to differential output gain block.
- AC- or DC-coupled input capability.
- Integrated common mode feedback and external gain set resistors.
- Fast enable/shutdown pin response time of 20 ns.
- Available in 8-pin SOIC and thermally enhanced 8-pin WSON packages.
Applications
- Differential ADC Driver
- Video Over Twisted Pair
- Differential Line Driver
- Single End to Differential Converter
- High-Speed Differential Signaling
- IF/RF Amplifier
- Level Shift Amplifier
- SAW Filter Buffer/Driver
- Communication Systems
- High-Speed Oscilloscope Front Ends
Q & A
- What is the maximum small signal bandwidth of the LMH6552?
The LMH6552 has a maximum small signal bandwidth of 1.5 GHz at AV = 1.
- What are the package options for the LMH6552?
The LMH6552 is available in 8-pin SOIC and 8-pin WSON packages.
- What is the slew rate of the LMH6552?
The slew rate of the LMH6552 is 3800 V/µs.
- Can the LMH6552 be used in high-speed data acquisition systems?
- What is the operating voltage range of the LMH6552?
The operating voltage range of the LMH6552 is from 5 V to 12 V.
- How quickly can the enable/shutdown pin respond?
The enable/shutdown pin can respond in 20 ns.
- What are some common applications of the LMH6552?
Common applications include differential ADC drivers, video over twisted pair, differential line drivers, and high-speed oscilloscope front ends.
- Can the LMH6552 be configured for different input and output types?
- What is the settling time to 0.1% for the LMH6552?
The settling time to 0.1% for the LMH6552 is 10 ns.
- What is the total harmonic distortion (THD) at 20 MHz for the LMH6552?
The total harmonic distortion (THD) at 20 MHz for the LMH6552 is –90 dB.
