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기능 Dual High Speed/ Low Power/ Low Distortion/ Voltage Feedback Amplifiers
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5962-95604 데이터시트, 핀배열, 회로
May 1999
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 ±5V power sup-
ply for low voltage applications such as portable video sys-
tems.
The LM6172 is built with National’s advanced VIPIII (Ver-
tically Integrated PNP) complementary bipolar process. See
the LM6171 datasheet for a single amplifier with these same
features.
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 Operation
Applications
n Scanner I-to-V Converters
n ADSL/HDSL Drivers
n Multimedia Broadcast Systems
n Video Amplifiers
n NTSC, PAL® and SECAM Systems
n ADC/DAC Buffers
n Pulse Amplifiers and Peak Detectors
LM6172 Driving Capacitive Load
Connection Diagram
DS012581-50
8-Pin DIP/SO
DS012581-44
Top View
DS012581-1
VIPis 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
www.national.com




5962-95604 pdf, 반도체, 판매, 대치품
±15V DC Electrical Characteristics (Continued)
Unless otherwise specified, all limits guaranteed for TJ = 25˚C,V+ = +15V, V= −15V, VCM = 0V, and RL = 1 k. Boldface
limits apply at the temperature extremes
Symbol
Parameter
Conditions
Typ
(Note 5)
LM6172I
Limit
Units
(Note 5)
9 max
±15V AC Electrical Characteristics
Unless otherwise specified, TJ = 25˚C, V+ = +15V, V= −15V, VCM = 0V, and RL = 1 k
Symbol
Parameter
Conditions
SR Slew Rate
AV = +2, VIN = 13 VPP
AV = +2, VIN = 10 VPP
Unity-Gain Bandwidth
−3 dB Frequency
AV = +1
AV = +2
Bandwidth Matching between Channels
φm Phase Margin
ts Settling Time (0.1%)
AD Differential Gain (Note 8)
φD Differential Phase (Note 8)
en Input-Referred
AV = −1, VOUT = ±5V,
RL = 500
f = 1 kHz
Voltage Noise
in Input-Referred
Current Noise
f = 1 kHz
Second Harmonic
Distortion (Note 10)
Third Harmonic
Distortion (Note 10)
f = 10 kHz
f = 5 MHz
f = 10 kHz
f = 5 MHz
LM6172I
Typ
(Note 5)
3000
2500
100
160
62
2
40
65
0.28
0.6
12
1
−110
−50
−105
−50
Units
V/µs
V/µs
MHz
MHz
MHz
MHz
Deg
ns
%
Deg
dB
dB
dB
dB
±5V DC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = +5V, V= −5V, VCM = 0V, and RL = 1 k. Boldface
limits apply at the temperature extremes
Symbol
Parameter
Conditions
Typ
(Note 5)
LM6172I
Limit
Units
(Note 5)
VOS Input Offset Voltage
0.1 3 mV
4 max
TC VOS
Input Offset Voltage
Average Drift
4 µV/˚C
IB Input Bias Current
1.4 2.5
µA
3.5 max
IOS Input Offset Current
0.02
1.5
2.2
µA
max
RIN Input Resistance
Common Mode
Differential Mode
40
4.9
M
RO
CMRR
Output Resistance
Common Mode Rejection Ratio
VCM = ±2.5V
14
105 70
dB
www.national.com
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5962-95604 전자부품, 판매, 대치품
Typical Performance Characteristics unless otherwise noted, TA = 25˚C (Continued)
Output Voltage vs
Output Current
(VS = ±15V)
Output Voltage vs
Output Current
(VS = ±5V)
CMRR vs Frequency
DS012581-36
PSRR vs Frequency
PSRR vs Frequency
DS012581-37
DS012581-19
Open-Loop Frequency
Response
DS012581-20
Open-Loop Frequency
Response
DS012581-33
Gain-Bandwidth Product
vs Supply Voltage
at Different Temperature
Large Signal Voltage
Gain vs Load
DS012581-21
DS012581-22
DS012581-23
DS012581-38
7 www.national.com

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Dual High Speed/ Low Power/ Low Distortion/ Voltage Feedback Amplifiers

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