Overview
The LM7171AIMX is a high-speed voltage-feedback amplifier produced by National Semiconductor. It combines the slewing characteristics of a current-feedback amplifier with the ease of use of a traditional voltage-feedback amplifier. This device is stable for gains as low as +2 or −1 and is particularly suited for high-speed signal processing applications. The LM7171AIMX operates on ±15V and ±5V power supplies, allowing for large signal swings and providing a greater dynamic range and signal-to-noise ratio. It is an excellent choice for video and high-speed signal processing, including applications such as HDSL drivers, multimedia broadcast systems, and professional video cameras.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Slew Rate | 4100 | V/μs |
| Unity-Gain Bandwidth | 200 | MHz |
| −3 dB Frequency @ AV = +2 | 220 | MHz |
| Supply Current | 6.5 | mA |
| Open-Loop Gain | 85 | dB |
| Output Current | 100 | mA |
| Differential Gain and Phase | 0.01%, 0.02° | |
| Input Offset Voltage | 0.2 - 3 | mV |
| Input Bias Current | 2.7 - 10 | μA |
| Common Mode Rejection Ratio (CMRR) | 80 - 105 | dB |
| Power Supply Rejection Ratio (PSRR) | 80 - 90 | dB |
| Input Common-Mode Voltage Range | ±13.35 V |
Key Features
- Easy-to-use voltage-feedback topology
- Very high slew rate: 4100 V/μs
- Wide unity-gain bandwidth: 200 MHz
- Low supply current: 6.5 mA
- High open-loop gain: 85 dB
- High output current: 100 mA
- Differential gain and phase: 0.01%, 0.02°
- Specified for ±15V and ±5V operation
Applications
- HDSL and ADSL drivers
- Multimedia broadcast systems
- Professional video cameras
- Video amplifiers
- Copiers, scanners, fax machines
- HDTV amplifiers
- Pulse amplifiers and peak detectors
- CATV and fiber optics signal processing
Q & A
- What is the slew rate of the LM7171AIMX? The slew rate of the LM7171AIMX is 4100 V/μs.
- What is the unity-gain bandwidth of the LM7171AIMX? The unity-gain bandwidth is 200 MHz.
- What are the typical supply voltages for the LM7171AIMX? The device is specified for ±15V and ±5V operation.
- What is the maximum output current of the LM7171AIMX? The maximum output current is 100 mA.
- What are some common applications of the LM7171AIMX? Common applications include HDSL and ADSL drivers, multimedia broadcast systems, professional video cameras, and video amplifiers.
- What is the input offset voltage range of the LM7171AIMX? The input offset voltage range is 0.2 - 3 mV.
- What is the common mode rejection ratio (CMRR) of the LM7171AIMX? The CMRR is between 80 - 105 dB.
- How much supply current does the LM7171AIMX consume? The device consumes 6.5 mA of supply current.
- What is the phase margin of the LM7171AIMX? The phase margin is approximately 50 degrees.
- What is the settling time (0.1%) of the LM7171AIMX? The settling time is around 16 - 42 ns depending on the configuration.
