lm6172-mwc

Manufacturer Part Numberlm6172-mwc
DescriptionDual High Speed, Low Power, Low Distortion, Voltage Feedback Amplifiers
ManufacturerNational Semiconductor Corporation
lm6172-mwc 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
performance. With 100MHz unity-gain bandwidth, 3000V/µs
slew rate and 50mA of output current per channel, the
LM6172 offers high performance in dual amplifiers; yet it
only consumes 2.3mA 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
supply for low voltage applications such as portable video
systems.
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.
© 2004 National Semiconductor Corporation
Features
(Typical Unless Otherwise Noted)
n Easy to Use Voltage Feedback Topology
n High Slew Rate
n Wide Unity-Gain Bandwidth 100MHz
n Low Supply Current 2.3mA/Channel
n High Output Current 50mA/channel
n Specified for
±
5V power
Applications
n Scanner I-to-V Converters
n ADSL/HDSL Drivers
III (Ver-
n Multimedia Broadcast Systems
n Video Amplifiers
n NTSC, PAL
®
n ADC/DAC Buffers
n Pulse Amplifiers and Peak Detectors
01258150
8-Pin DIP/SO
01258101
Top View
DS012581
September 2004
3000V/µs
±
±
15V and
5V Operation
and SECAM Systems
01258144
www.national.com

lm6172-mwc Summary of contents

  • Page 1

    ... Dual High Speed, Low Power, Low Distortion, Voltage Feedback Amplifiers General Description The LM6172 is a dual high speed voltage feedback amplifier unity-gain stable and provides excellent DC and AC performance. With 100MHz unity-gain bandwidth, 3000V/µs slew rate and 50mA of output current per channel, the LM6172 offers high performance in dual amplifiers ...

  • Page 2

    ... Ordering Information Package Industrial −40˚C to +85˚C 8-Pin DIP LM6172IN 8-Pin CDIP LM6172AMJ-QML 16-Pin Ceramic LM6172AMWG-QML SOIC 8-Pin LM6172IM Small Outline LM6172IMX www.national.com Temperature Range Military −55˚C to +125˚C 5962-95604 5962-95604 2 Transport Media NSC Drawing Rails N08E Rails J08A ...

  • Page 3

    ... 100Ω 1kΩ 100Ω L Sourcing 100Ω (Note 1) 5.5V ≤ V −40˚C to +85˚ − = −15V 0V, and R = 1kΩ. Boldface CM L Typ LM6172I Units (Note 5) Limit (Note 4.9 14 110 ± 13.5 ...

  • Page 4

    ... Units (Note 5) 3000 V/µs PP 2500 V/µs PP 100 MHz 160 MHz 62 MHz 2 MHz 40 Deg 5V 0.28 % 0.6 Deg 12 1 −110 dB −50 dB −105 dB − 0V, and kΩ. Boldface lim Typ LM6172I Units (Note 5) Limit (Note 6) 0 max 4 µV/˚C 1.4 2.5 µA 3.5 max 0.02 1.5 µA ...

  • Page 5

    ... LM61722 Typ Units (Note 5) 750 V/µ MHz 130 MHz 45 MHz 57 Deg 1V 0.4 % 0.7 Deg www.national.com max MΩ Ω dB min dB min V dB min dB ...

  • Page 6

    ... The maximum allowable power dissipation at any ambient temperature is J(max + 3.58MHz and both input and output 75Ω terminated and R = 100Ω kΩ. LM61722 Typ Units (Note −110 dB −48 dB −105 dB −50 dB ± ± = 15V ...

  • Page 7

    Typical Performance Characteristics Supply Voltage vs. Supply Current Input Offset Voltage vs. Temperature Short Circuit Current vs. Temperature (Sourcing) unless otherwise noted, T Supply Current vs. Temperature 01258114 Input Bias Current vs. Temperature 01258116 Short Circuit Current vs. Temperature (Sinking) ...

  • Page 8

    Typical Performance Characteristics Output Voltage vs. Output Current ± 15V) S CMRR vs. Frequency PSRR vs. Frequency www.national.com unless otherwise noted, T Output Voltage vs. Output Current 01258136 PSRR vs. Frequency 01258119 Open-Loop Frequency Response 01258133 8 = ...

  • Page 9

    Typical Performance Characteristics Open-Loop Frequency Response Large Signal Voltage Gain vs. Load Input Voltage Noise vs. Frequency unless otherwise noted, T Gain-Bandwidth Product vs. Supply Voltage at Different 01258122 Large Signal Voltage Gain vs. Load 01258138 Input Voltage Noise vs. ...

  • Page 10

    Typical Performance Characteristics Input Current Noise vs. Frequency Slew Rate vs. Supply Voltage Large Signal Pulse Response www.national.com unless otherwise noted, T 01258142 01258125 ± 15V 01258102 10 = 25˚C (Continued) A Input ...

  • Page 11

    Typical Performance Characteristics Large Signal Pulse Response ± + Large Signal Pulse Response ± + 15V V S Large Signal Pulse Response ± + ...

  • Page 12

    Typical Performance Characteristics Large Signal Pulse Response A = − Large Signal Pulse Response A = − Closed Loop Frequency Response vs. Supply Voltage (A = +1) V www.national.com unless otherwise noted, ...

  • Page 13

    Typical Performance Characteristics Harmonic Distortion vs. Frequency ± 15V) S Crosstalk Rejection vs. Frequency unless otherwise noted, T Harmonic Distortion vs. Frequency 01258130 Maximum Power Dissipation vs. Ambient Temperature 01258131 13 = 25˚C (Continued) A ± ...

  • Page 14

    ... LM6172 SLEW RATE CHARACTERISTIC The slew rate of LM6172 is determined by the current avail- able to charge and discharge an internal high impedance node capacitor. This current is the differential input voltage divided by the total degeneration resistor R ...

  • Page 15

    ... To solve this problem, a feedback capacitor with a value > can be used to cancel that pole. For LM6172, a feedback capacitor of 2pF is recommended. Figure 4 illustrates the compensation circuit. FIGURE 4. Compensating for Input Capacitance 15 components, choose ...

  • Page 16

    ... A θ is the thermal resistance of a particular package JA For example, for the LM6172 in a SO-8 package, the maxi- mum power dissipation at 25˚C ambient temperature is 780mW. Thermal resistance, θ die size, package size and package material. The smaller the die size and package, the higher θ ...

  • Page 17

    Application Circuits I-to-V Converters 01258148 Differential Line Driver 17 01258149 www.national.com ...

  • Page 18

    ... Physical Dimensions Order Number LM6172AMJ-QML or 5962-9560401QPA 8-Lead (0.150" Wide) Molded Small Outline Package, JEDEC www.national.com inches (millimeters) unless otherwise noted 8-Lead Ceramic Dual-In-Line Package NS Package Number J08A Order Number LM6172IM or LM6172IMX NS Package Number M08A 18 ...

  • Page 19

    ... Deutsch Tel: +49 (0) 69 9508 6208 English www.national.com Français Tel: +33 ( 8790 Order Number LM6172IN NS Package Number N08E 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system affect its safety or effectiveness ...