Overview
The LM7171BIM/NOPB is a high-speed voltage-feedback amplifier manufactured by Texas Instruments. This device combines the slewing characteristics of a current-feedback amplifier with the versatility of a traditional voltage-feedback amplifier. It is designed to operate in a wide range of applications, including video and high-speed signal processing, such as HDSL and pulse amplifiers. The LM7171 is stable for gains as low as +2 or −1 and offers a very high slew rate and wide unity-gain bandwidth, making it an excellent choice for demanding signal processing tasks.
Key Specifications
| Parameter | Test Conditions | Typical Value | Minimum Value | Maximum Value | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | TA = –40°C to +85°C | 1 | 0.2 | 3 | mV |
| Input Offset Voltage Average Drift (TCVOS) | - | 35 | - | - | μV/°C |
| Input Bias Current (IB) | TA = –40°C to +85°C | 10 | 2.7 | 12 | μA |
| Input Offset Current (IOS) | TA = –40°C to +85°C | 4 | 0.1 | 6 | μA |
| Input Resistance (RIN) | Common Mode | 320 | - | - | MΩ |
| Open-Loop Output Resistance (RO) | - | 15 | - | - | Ω |
| Common-Mode Rejection Ratio (CMRR) | VCM = ±10V | 85 | 75 | 105 | dB |
| Slew Rate (SR) | AV = +2, VIN = 13 VPP | 4100 | - | - | V/μs |
| Unity-Gain Bandwidth | - | 200 | - | - | MHz |
| Supply Current | - | 6.5 | - | - | mA |
| Output Current | - | 100 | - | - | mA |
Key Features
- Easy-to-use voltage-feedback topology
- Very high slew rate: 4100 V/μs
- Wide unity-gain bandwidth: 200 MHz
- −3 dB frequency at AV = +2: 220 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
The LM7171BIM/NOPB is well-suited for various high-speed signal processing applications, including:
- Video and high-speed signal processing
- HDSL (High-bit-rate Digital Subscriber Line) amplifiers
- Pulse amplifiers
- Video distribution
- Transformer drivers
- Laser diode drivers
- ADC/DAC systems due to its low SFDR and THD
Q & A
- What is the typical slew rate of the LM7171BIM/NOPB?
The typical slew rate is 4100 V/μs.
- What is the unity-gain bandwidth of the LM7171BIM/NOPB?
The unity-gain bandwidth is 200 MHz.
- What are the input offset voltage specifications for the LM7171BIM/NOPB?
The input offset voltage is typically 1 mV, with a minimum of 0.2 mV and a maximum of 3 mV.
- What is the common-mode rejection ratio (CMRR) of the LM7171BIM/NOPB?
The CMRR is typically 85 dB for VCM = ±10V.
- What is the maximum output current of the LM7171BIM/NOPB?
The maximum output current is 100 mA.
- Can the LM7171BIM/NOPB operate on different power supply voltages?
Yes, it is specified for both ±15V and ±5V operation.
- What is the typical supply current of the LM7171BIM/NOPB?
The typical supply current is 6.5 mA.
- What are some common applications for the LM7171BIM/NOPB?
Common applications include video and high-speed signal processing, HDSL amplifiers, pulse amplifiers, video distribution, transformer drivers, and laser diode drivers.
- What is the operating temperature range for the LM7171BIM/NOPB?
The operating temperature range is –40°C to +85°C.
- What package type is the LM7171BIM/NOPB available in?
The LM7171BIM/NOPB is available in an 8-pin SOIC (D) package.
