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부품번호 | 5962-95604 기능 |
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기능 | Dual High Speed/ Low Power/ Low Distortion/ Voltage Feedback Amplifiers | ||
제조업체 | National Semiconductor | ||
로고 | |||
전체 16 페이지수
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 VIP™ III (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
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
www.national.com
±15V DC Electrical Characteristics (Continued)
Unless otherwise specified, all limits guaranteed for TJ = 25˚C,V+ = +15V, V− = −15V, VCM = 0V, and RL = 1 kΩ. 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 kΩ
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 = 500Ω
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 kΩ. 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
MΩ
RO
CMRR
Output Resistance
Common Mode Rejection Ratio
VCM = ±2.5V
14
105 70
Ω
dB
www.national.com
4
4페이지 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
7페이지 | |||
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5962-95604 | Dual High Speed/ Low Power/ Low Distortion/ Voltage Feedback Amplifiers | National Semiconductor |
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