
LM7171QML
October 21, 2010
Very High Speed, High Output Current, Voltage Feedback
Amplifier
General Description
The LM7171 is a high speed voltage feedback amplifier that
has the slewing characteristic of a current feedback amplifier;
yet it can be used in all traditional voltage feedback amplifier
configurations. The LM7171 is stable for gains as low as +2
or 1. It provides a very high slew rate at 4100V/
μs and a wide
unity-gain bandwidth of 200 MHz while consuming only
6.5 mA of supply current. It is ideal for video and high speed
signal processing applications such as HDSL and pulse am-
plifiers. With 100 mA output current, the LM7171 can be used
for video distribution, as a transformer driver or as a laser
diode driver.
Operation on ±15V power supplies allows for large signal
swings and provides greater dynamic range and signal-to-
noise ratio. The LM7171 offers low SFDR and THD, ideal for
ADC/DAC systems. In addition, the LM7171 is specified for
±5V operation for portable applications.
The LM7171 is built on National's advanced VIP III (Verti-
cally integrated PNP) complementary bipolar process.
Features
(Typical Unless Otherwise Noted)
■ Easy-To-Use Voltage Feedback Topology
■ Very High Slew Rate: 2400V/μs
■ Wide Unity-Gain Bandwidth: 200 MHz
■ 3 dB Frequency @ A
V = +2:
220 MHz
■ Low Supply Current: 6.5 mA
■ High Open Loop Gain: 85 dB
■ High Output Current: 100 mA
■ Specified for ±15V and ±5V Operation
■ Available with radiation guarantee
— Total Ionizing Dose
300 krad(Si)
— ELDRS Free
300 krad(Si)
Applications
■ HDSL and ADSL Drivers
■ Multimedia Broadcast Systems
■ Professional Video Cameras
■ Video Amplifiers
■ Copiers/Scanners/Fax
■ HDTV Amplifiers
■ Pulse Amplifiers and Peak Detectors
■ CATV/Fiber Optics Signal Processing
Ordering Information
NS Part Number
SMD Part Number
NS Package Number
Package Description
LM7171AMJ-QML
5962-9553601QPA
J08A
8LD Ceramic Dip
LM7171AMJFQMLV
HIGH DOSE RATE
5962F9553601VPA
300 krad(Si)
J08A
8LD Ceramic Dip
LM7171AMWFQMLV
HIGH DOSE RATE
5962F9553601VHA
300 krad(Si)
W10A
10LD Ceramic Flatpack
LM7171AMWFLQMLV
ELDRS FREE
5962F9553602VHA
300 krad(Si)
W10A
10LD Ceramic Flatpack
LM7171AMWG-QML
5962-9553601QXA
WG10A
10LD Ceramic SOIC
LM7171AMWGFQMLV
HIGH DOSE RATE
5962F9553601VXA
300 krad(Si)
WG10A
10LD Ceramic SOIC
LM7171AMWGFLQV
ELDRS FREE
5962F9553602VXA
300 krad(Si)
WG10A
10LD Ceramic SOIC
VIP is a registered trademark of National Semiconductor Corporation.
2010 National Semiconductor Corporation
201595
www.national.com
LM7171QML
Very
High
Speed,
High
Output
Current,
Voltage
Feedback
Amplifier