LM6172AMWG-QML

Manufacturer Part NumberLM6172AMWG-QML
DescriptionDual High Speed/ Low Power/ Low Distortion/ Voltage Feedback Amplifiers
ManufacturerNational Semiconductor
LM6172AMWG-QML datasheet
 


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LM6172
Dual High Speed, Low Power, Low Distortion, Voltage
Feedback Amplifiers
General Description
The LM6172 is a dual high speed voltage feedback amplifier.
It is unity-gain stable and provides excellent DC and AC per-
formance. With 100 MHz unity-gain bandwidth, 3000V/µs
slew rate and 50 mA of output current per channel, the
LM6172 offers high performance in dual amplifiers; yet it
only consumes 2.3 mA of supply current each channel.
±
The LM6172 operates on
15V power supply for systems
requiring large voltage swings, such as ADSL, scanners and
ultrasound equipment. It is also specified at
ply for low voltage applications such as portable video sys-
tems.
The LM6172 is built with National’s advanced VIP
tically Integrated PNP) complementary bipolar process. See
the LM6171 datasheet for a single amplifier with these same
features.
LM6172 Driving Capacitive Load
Connection Diagram
VIP
is a trademark of National Semiconductor Corporation.
PAL
®
is a registered trademark of and used under license from Advanced Micro Devices, Inc.
© 1999 National Semiconductor Corporation
DS012581
Features
(Typical Unless Otherwise Noted)
n Easy to Use Voltage Feedback Topology
n High Slew Rate
3000V/µs
n Wide Unity-Gain Bandwidth 100 MHz
n Low Supply Current 2.3 mA/Channel
n High Output Current 50 mA/channel
±
n Specified for
15V and
±
5V power sup-
Applications
n Scanner I-to-V Converters
n ADSL/HDSL Drivers
III (Ver-
n Multimedia Broadcast Systems
n Video Amplifiers
n NTSC, PAL
®
and SECAM Systems
n ADC/DAC Buffers
n Pulse Amplifiers and Peak Detectors
DS012581-50
8-Pin DIP/SO
DS012581-1
Top View
May 1999
±
5V Operation
DS012581-44
www.national.com

LM6172AMWG-QML Summary of contents

  • Page 1

    ... LM6171 datasheet for a single amplifier with these same features. LM6172 Driving Capacitive Load Connection Diagram VIP ™ trademark of National Semiconductor Corporation. PAL ® registered trademark of and used under license from Advanced Micro Devices, Inc. © 1999 National Semiconductor Corporation DS012581 ...

  • Page 2

    ... Ordering Information Package Temperature Range Industrial −40˚C to +85˚C 8-Pin DIP LM6172IN 8-Pin CDIP LM6172AMJ-QML 10-Pin Ceramic LM6172AMWG-QML SOIC 8-Pin LM6172IM Small Outline LM6172IMX www.national.com Transport Media Drawing Military −55˚C to +125˚C Rails 5962-95604 Rails 5962-95604 Trays WG10A Rails ...

  • Page 3

    ... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. ESD Tolerance (Note 2) Human Body Model Machine Model + − Supply Voltage (V − Differential Input Voltage (Note 9) Output Short Circuit to Ground (Note 3) Storage Temp. Range ± ...

  • Page 4

    DC Electrical Characteristics Unless otherwise specified, all limits guaranteed for T limits apply at the temperature extremes Symbol Parameter ± 15V AC Electrical Characteristics = 25˚C, V Unless otherwise specified Symbol Parameter SR Slew Rate Unity-Gain ...

  • Page 5

    DC Electrical Characteristics Unless otherwise specified, all limits guaranteed for T limits apply at the temperature extremes Symbol Parameter PSRR Power Supply Rejection Ratio A Large Signal Voltage V Gain (Note 6) V Output Swing O Continuous Output ...

  • Page 6

    AC Electrical Characteristics = 25˚C, V Unless otherwise specified Symbol Parameter Distortion (Note 10) Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the ...

  • Page 7

    Typical Performance Characteristics Output Voltage vs Output Current = ± (V 15V) S DS012581-36 PSRR vs Frequency DS012581-20 Open-Loop Frequency Response DS012581-22 unless otherwise noted, T Output Voltage vs Output Current = ± (V 5V) S DS012581-37 PSRR vs Frequency ...

  • Page 8

    Typical Performance Characteristics Large Signal Voltage Gain vs Load DS012581-39 Input Current Noise vs Frequency DS012581-42 Slew Rate vs Input Voltage DS012581-26 Small Signal Pulse Response = + ± A 15V V S DS012581-3 www.national.com unless otherwise noted, ...

  • Page 9

    Typical Performance Characteristics Large Signal Pulse Response ± 15V V S DS012581-6 Small Signal Pulse Response = + ± DS012581-9 Large Signal Pulse Response = − ± ...

  • Page 10

    Typical Performance Characteristics Closed Loop Frequency Response vs Supply Voltage = + DS012581-29 Crosstalk Rejection vs Frequency DS012581-31 www.national.com unless otherwise noted, T Harmonic Distortion vs Frequency = ± (V 15V) S DS012581-30 Maximum Power Dissipation vs Ambient ...

  • Page 11

    LM6172 Simplified Schematic 2 Application Notes LM6172 Performance Discussion The LM6172 is a dual high-speed, low power, voltage feed- back amplifier unity-gain stable and offers outstanding performance with only 2 supply current per channel. ...

  • Page 12

    Driving Capacitive Loads FIGURE 1. Isolation Resistor Used to Drive Capacitive Load FIGURE 2. The LM6172 Driving a 510 pF Load with a 30 Isolation Resistor FIGURE 3. The LM6172 Driving a 220 pF Load with a 50 Isolation Resistor ...

  • Page 13

    Power Supply Bypassing DS012581-47 FIGURE 5. Power Supply Bypassing Termination In high frequency applications, reflections occur if signals are not properly terminated. Figure 6 shows a properly termi- nated signal while Figure 7 shows an improperly terminated signal. FIGURE 6. ...

  • Page 14

    Application Circuits www.national.com I-to-V Converters DS012581-48 Differential Line Driver 14 DS012581-49 ...

  • Page 15

    Physical Dimensions inches (millimeters) unless otherwise noted 8-Lead Ceramic Dual-In-Line Package Order Number LM6172AMJ-QML or 5962-9560401QPA 8-Lead (0.150" Wide) Molded Small Outline Package, JEDEC Order Number LM6172IM or LM6172IMX NS Package Number J08A NS Package Number M08A 15 www.national.com ...

  • Page 16

    ... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...