Overview
The LM7171BIN/NOPB, produced by Texas Instruments, is a high-speed voltage-feedback amplifier that combines the slewing characteristics of a current-feedback amplifier with the ease of use of a traditional voltage-feedback topology. This amplifier is designed for high-speed and high-output current applications, making it an excellent choice for various video and signal processing tasks. It operates on both ±15V and ±5V power supplies, allowing for large signal swings and a greater dynamic range. The LM7171BIN/NOPB is stable for gains as low as +2 or −1, making it versatile for different application requirements.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Slew Rate | AV = +2, VIN = 13VPP | - | 4100 | - | V/μs |
| Unity-Gain Bandwidth | - | - | 200 | - | MHz |
| -3dB Frequency | AV = +2 | - | 220 | - | MHz |
| Supply Current | - | 6.5 | 8.5 | 9.5 | mA |
| Output Current (Open Loop) | Sourcing, RL = 100Ω, VS = ±15V | 105 | 118 | 95 | mA |
| Output Current (Linear Region) | Sourcing, RL = 100Ω, VS = ±15V | 100 | - | - | mA |
| Input Offset Voltage | TA = –40°C to +85°C, VS = ±15V | 0.2 | 1 | 3 | mV |
| Common-Mode Rejection Ratio | VCM = ±10V, VS = ±15V | 85 | 105 | - | dB |
| Power Supply Rejection Ratio | VS = ±15V | 85 | 90 | - | dB |
Key Features
- Very high slew rate of 4100V/μs
- Wide unity-gain bandwidth of 200MHz
- -3dB frequency at AV = +2 of 220MHz
- Low supply current of 6.5mA
- High open-loop gain of 85dB
- High output current of 100mA
- Differential gain and phase of 0.01%, 0.02º
- Specified for ±15V and ±5V operation
- Low SFDR and THD, suitable for ADC/DAC systems
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 LM7171BIN/NOPB amplifier?
The slew rate of the LM7171BIN/NOPB is 4100V/μs at AV = +2 and VIN = 13VPP.
- What is the unity-gain bandwidth of the LM7171BIN/NOPB?
The unity-gain bandwidth is 200MHz.
- What are the typical supply current requirements for the LM7171BIN/NOPB?
The typical supply current is 6.5mA, with a maximum of 9.5mA.
- What is the maximum output current of the LM7171BIN/NOPB?
The maximum output current in the linear region is 100mA.
- What are the common operating voltage ranges for the LM7171BIN/NOPB?
The LM7171BIN/NOPB is specified for operation on both ±15V and ±5V power supplies.
- What are some typical applications of the LM7171BIN/NOPB?
Typical applications include HDSL and ADSL drivers, multimedia broadcast systems, professional video cameras, and HDTV amplifiers.
- What is the common-mode rejection ratio (CMRR) of the LM7171BIN/NOPB?
The CMRR is 85 to 105 dB for VCM = ±10V and VS = ±15V.
- How does the LM7171BIN/NOPB perform in terms of harmonic distortion?
The LM7171BIN/NOPB has a second harmonic distortion (HD2) of -123 dBc at fIN = 10kHz and -75 dBc at fIN = 5MHz for the LM7171A version).
- What is the input-referred voltage noise of the LM7171BIN/NOPB?
The input-referred voltage noise is 8.5 nV/√Hz at f = 10kHz for the LM7171A version).
- Is the LM7171BIN/NOPB suitable for portable applications?
