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PDF LM6181IN Data sheet ( Hoja de datos )
| Número de pieza | LM6181IN | |
| Descripción | 100 mA/ 100 MHz Current Feedback Amplifier | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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May 1998
LM6181
100 mA, 100 MHz Current Feedback Amplifier
General Description
The LM6181 current-feedback amplifier offers an unparal-
leled combination of bandwidth, slew-rate, and output cur-
rent. The amplifier can directly drive up to 100 pF capacitive
loads without oscillating and a 10V signal into a 50Ω or 75Ω
back-terminated coax cable system over the full industrial
temperature range. This represents a radical enhancement
in output drive capability for an 8-pin DIP high-speed ampli-
fier making it ideal for video applications.
Built on National’s advanced high-speed VIP™ II (Vertically
Integrated PNP) process, the LM6181 employs current-
feedback providing bandwidth that does not vary dramati-
cally with gain; 100 MHz at AV = −1, 60 MHz at AV = −10.
With a slew rate of 2000V/µs, 2nd harmonic distortion of −50
dBc at 10 MHz and settling time of 50 ns (0.1%) the LM6181
dynamic performance makes it ideal for data acquisition,
high speed ATE, and precision pulse amplifier applications.
Features
(Typical unless otherwise noted)
n Slew rate: 2000 V/µs
n Settling time (0.1%): 50 ns
n Characterized for supply ranges: ±5V and ±15V
n Low differential gain and phase error: 0.05%, 0.04˚
n High output drive: ±10V into 100Ω
n Guaranteed bandwidth and slew rate
n Improved performance over EL2020, OP160, AD844,
LT1223 and HA5004
Applications
n Coax cable driver
n Video amplifier
n Flash ADC buffer
n High frequency filter
n Scanner and Imaging systems
Typical Application
Cable Driver
DS011328-1
DS011328-2
VIP™ is a registered trademark of National Semiconductor Corporation.
© 1999 National Semiconductor Corporation DS011328
www.national.com
1 page  
±5V AC Electrical Characteristics
The following specifications apply for Supply Voltage = ±5V,
limits apply at the temperature extremes; all other limits TJ =
RF = 820Ω,
25˚C.
and
RL
=
1
kΩ
unless
otherwise
noted.
Boldface
Symbol
Parameter
Conditions
LM6181AM
LM6181AI
LM6181I
Units
Typical Limit Typical Limit Typical Limit
(Note 4) (Note 5) (Note 4) (Note 5) (Note 4) (Note 5)
BW Closed Loop Bandwidth −3 dB AV = +2
AV = +10
50
40
50 50 MHz
min
40 40
AV = −1
55 35 55 35 55 35
AV = −10
35
35 35
PBW Power Bandwidth
AV = −1, VO = 4 VPP
40
40 40
SR Slew Rate
AV = −1, VO = ±2V,
500
375 500 375 500 375
V/µs
RL = 150Ω (Note 6)
min
ts Settling Time (0.1%)
AV = −1, VO = ±2V
50
50 50
ns
RL = 150Ω
tr, tf Rise and Fall Time
VO = 1 VPP
8.5
8.5 8.5
tp Propagation Delay Time
VO = 1 VPP
8
88
in(+) Non-Inverting Input Noise
f = 1 kHz
3
33
Current Density
in(−) Inverting Input Noise
Current Density
f = 1 kHz
16
16 16
en Input Noise Voltage
Density
f = 1 kHz
4
44
Second Harmonic Distortion
Third Harmonic Distortion
Differential Gain
2 VPP, 10 MHz
2 VPP, 10 MHz
RL = 150Ω
AV = +2
NTSC
−45
−55
0.063
−45
−55
0.063
−45
−55
0.063
dBc
%
Differential Phase
RL = 150Ω
AV = +2
NTSC
0.16
0.16 0.16
Deg
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating ratings indicate conditions the device is intended to
be functional, but device parameter specifications may not be guaranteed under these conditions. For guaranteed specifications and test conditions, see the Electrical
Characteristics.
Note 2: Human body model 100 pF and 1.5 kΩ.
Note 3: The typical junction-to-ambient thermal resistance of the molded plastic DIP(N) package soldered directly into a PC board is 102˚C/W. The
junction-to-ambient thermal resistance of the S.O. surface mount (M) package mounted flush to the PC board is 70˚C/W when pins 1, 4, 8, 9 and 16 are soldered
to a total 2 in2 1 oz. copper trace. The 16-pin S.O. (M) package must have pin 4 and at least one of pins 1, 8, 9, or 16 connected to V− for proper operation. The typical
junction-to-ambient thermal resistance of the S.O. (M-8) package soldered directly into a PC board is 153˚C/W.
Note 4: Typical values represent the most likely parametric norm.
Note 5: All limits guaranteed at room temperature (standard type face) or at operating temperature extremes (bold face type).
Note 6: Measured from +25% to +75% of output waveform.
Note 7: Continuous short circuit operation at elevated ambient temperature can result in exceeding the maximum allowed junction temperature of 150˚C. Output cur-
rents in excess of ±130 mA over a long term basis may adversely affect reliability.
Note 8: For guaranteed Military Temperature Range parameters see RETS6181X.
5 www.national.com
5 Page 
Typical Performance Characteristics TA = 25˚C unless otherwise noted (Continued)
SMALL SIGNAL PULSE
RESPONSE vs TEMP,
AV = +2
VS = ±15V; RL = 1 kΩ
SMALL SIGNAL PULSE
RESPONSE vs TEMP,
AV = +2
VS = ±15V; RL = 100Ω
SMALL SIGNAL PULSE
RESPONSE vs TEMP,
AV = +2
VS = ±5V; RL = 1 kΩ
DS011328-79
SMALL SIGNAL PULSE
RESPONSE vs TEMP,
AV = +2
VS = ±5V; RL = 100Ω
DS011328-80
SMALL SIGNAL PULSE
RESPONSE vs TEMP,
AV = −10
VS = ±15V; RL = 1 kΩ
DS011328-81
SMALL SIGNAL PULSE
RESPONSE vs TEMP,
AV = −10
VS = ±15V; RL = 100Ω
DS011328-82
SMALL SIGNAL PULSE
RESPONSE vs TEMP,
AV = −10
VS = ±5V; RL = 1 kΩ
DS011328-83
SMALL SIGNAL PULSE
RESPONSE vs TEMP,
AV = −10
VS = ±5V; RL = 100Ω
DS011328-84
SMALL SIGNAL PULSE
RESPONSE vs TEMP,
AV = +10
VS = ±15V; RL = 1 kΩ
DS011328-85
DS011328-86
11
DS011328-87
www.national.com
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet LM6181IN.PDF ] | |
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