NSC LM6162 High speed operational amplifier Datasheet

LM6162/LM6262/LM6362
High Speed Operational Amplifier
Y
General Description
Y
The LM6362 family of high-speed amplifiers exhibits an excellent speed-power product, delivering 300 V/ms and
100 MHz gain-bandwidth product (stable for gains as low as
a 2 or b 1) with only 5 mA of supply current. Further power
savings and application convenience are possible by taking
advantage of the wide dynamic range in operating supply
voltage which extends all the way down to a 5V.
These amplifiers are built with National’s VIPTM (Vertically
Integrated PNP) process which provides fast transistors that
are true complements to the already fast NPN devices. This
advanced junction-isolated process delivers high speed performance without the need for complex and expensive dielectric isolation.
Y
Y
Y
Y
Y
Low supply current
Fast settling time
Low differential gain
Low differential phase
Wide supply range
Stable with unlimited capacitive load
Well behaved; easy to apply
5 mA
120 ns to 0.1%
k 0.1%
k 0.1§
4.75V to 32V
Applications
Y
Y
Y
Y
Video amplifier
Wide-bandwidth signal conditioning for image processing (FAX, scanners, laser printers)
Hard disk drive preamplifier
Error amplifier for high-speed switching regulator
Features
Y
Y
High slew rate
High gain-bandwidth product
300 V/ms
100 MHz
Connection Diagrams
10-Pin Ceramic Flatpak
20-Lead LCC
TL/H/11061 15
Top View
See NS Package Number W10A
TL/H/11061 2
See NS Package Number N08E,
M08A or J08A
TL/H/11061 14
Top View
See NS Package Number E20A
Temperature Range
Military
b 55§ C s TA s a 125§ C
Industrial
b 25§ C s TA s a 85§ C
Commercial
0§ C s TA s a 70§ C
LM6162N
LM6262N
LM6362N
LM6162J/883
5962-9216501PA
LM6262M
LM6362M
NSC
Drawing
Package
8-Pin Molded DIP
N08E
8-Pin Ceramic DIP
J08A
8-Pin Molded Surface Mt.
M08A
LM6162E/883
5962-92165012A
20-Lead LCC
E20A
LM6162W/883
5962-9216501HA
10-Pin Ceramic Flatpak
W10A
VIPTM is a trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation
TL/H/11061
RRD B30M115/Printed in U S A
LM6162/LM6262/LM6362 High Speed Operational Amplifier
September 1995
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
See AN-450 ‘‘Surface Mounting Methods and Their Effect
on Product Reliability’’ for other methods of soldering surface mount devices.
Supply Voltage (V a – V )
Differential Input Voltage (Note 2)
Common-Mode Input Voltage
(Note 3)
Max Junction Temperature
ESD Tolerance (Note 5)
Storage Temperature Range
36V
g 8V
(V a b0.7V) to
(V a 0.7V)
Output Short Circuit to GND (Note 4)
Soldering Information
Dual-In-Line Package (N)
Soldering (10 seconds)
Small Outline Package (M)
Vapor Phase (60 seconds)
Infrared (15 seconds)
b 65§ C s TJ s a 150§ C
150§ C
g 1100V
Operating Ratings
Continuous
Temperature Range (Note 6)
LM6162
260§ C
b 55§ C s TJ s a 125§ C
b 25§ C s TJ s a 85§ C
LM6262
LM6362
Supply Voltage Range
215§ C
220§ C
0§ C s TJ s a 70§ C
4.75V to 32V
DC Electrical Characteristics
g 15V, VCM
These limits apply for supply voltage
0V, and RL t 100 kX, unless otherwise specified. Limits in standard
typeface are for TA
TJ
25§ C; limits in boldface type apply over the Operating Temperature Range.
Symbol
VOS
Parameter
Typical
(Note 7)
Conditions
Input Offset Voltage
DVOS
DTemp
Input Offset Voltage
Average Drift
Ibias
Input Bias Current
IOS
Input Offset Current
DIOS
DTemp
Input Offset Current
Average Drift
RIN
Input Resistance
CIN
Input Capacitance
AVOL
Large Signal
Voltage Gain
VCM
Input Common-Mode
Voltage Range
g3
LM6162
Limit
(Note 8)
LM6262
Limit
(Note 8)
LM6362
Limit
(Note 8)
g5
g5
g 13
g8
g8
g 15
7
2.2
g 150
Differential
RL
2 kX
10 kX
Supply
3
6
3
5
4
6
mA
max
nA
max
g 350
g 350
g 1500
g 800
g 600
g 1900
0.3
nA/§ C
180
kX
a 5V
Supply
(Note 10)
CMRR
Common-Mode
Rejection Ratio
b 10V s VCM s a 10V
PSRR
Power Supply
Rejection Ratio
g 10V s VS s g 16V
VO
Output Voltage
Swing
Supply
g 15V, RL
1400
pF
1000
500
1000
700
800
650
a 14.0
a 13.9
a 13.8
a 13.9
a 13.8
a 13.8
a 13.7
V
min
b 13.2
b 12.9
b 12.7
b 12.9
b 12.7
b 12.9
b 12.8
V
max
4.0
3.9
3.8
3.9
3.8
3.8
3.7
V
min
1.6
1.8
2.0
1.8
2.0
1.9
2.0
V
max
100
83
79
83
79
76
74
dB
min
93
83
79
83
79
76
74
dB
min
a 13.5
a 13.3
a 13.5
a 13.3
a 13.4
13.3
V
min
b 13.0
b 12.7
b 13.0
b 12.8
b 12.9
b 12.8
V
max
6500
g 15V
2 kX
a 14.2
b 13.4
2
mV
max
mV/§ C
2.0
g 10V, RL
VOUT
(Note 9)
Units
V/V
min
V/V
DC Electrical Characteristics (Continued)
g 15V, VCM
These limits apply for supply voltage
0V, and RL t 100 kX, unless otherwise specified. Limits in standard
typeface are for TA
TJ
25§ C; limits in boldface type apply over the Operating Temperature Range.
Symbol
VO
IOSC
IS
LM6162
Limit
(Note 8)
LM6262
Limit
(Note 8)
LM6362
Limit
(Note 8)
Units
4.2
3.5
3.3
3.5
3.3
3.4
3.3
V
min
1.3
1.7
2.0
1.7
1.9
1.8
1.9
V
max
Sourcing
65
30
20
30
25
30
25
mA
min
Sinking
65
30
20
30
25
30
25
mA
min
5.0
6.5
6.8
6.5
6.7
6.8
6.9
mA
max
Typical
(Note 7)
Parameter
Conditions
Output Voltage Swing
a 5V and
Supply
RL
2 kX (Note 10)
Output Short
Circuit Current
Supply Current
AC Electrical Characteristics
These limits apply for supply voltage
standard typeface are for TA
TJ
Symbol
g 15V, VCM
0V, RL t 100 kX, and CL s 5 pF, unless otherwise specified. Limits in
25§ C; limits in boldface type apply over the Operating Temperature Range.
Parameter
Typical
(Note 7)
Conditions
20 MHz
100
LM6162
Limit
(Note 8)
LM6262
Limit
(Note 8)
LM6362
Limit
(Note 8)
Units
80
55
80
65
75
65
MHz
min
200
180
200
180
200
180
V/ms
min
GBW
Gain-Bandwidth Product
f
SR
Slew Rate
AV
PBW
Power Bandwidth
VOUT
ts
Settling Time
10V step, to 0.1%
b 1, RL
AV
2 kX
wm
Phase Margin
AV
Differential Gain
NTSC, AV
a2
k 0.1
%
Differential Phase
NTSC, AV
a2
k 0.1
deg
en
Input Noise Voltage
f
10 kHz
10
nV/ SHz
in
Input Noise Current
f
10 kHz
1.2
pA/ SHz
Supply
g 5V
70
MHz
a 2 (Note 11)
300
Supply
200
V/ms
4.5
MHz
100
ns
45
deg
g 5V
20 VPP
a2
Note 1: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the
device beyond its rated operating conditions.
Note 2: The ESD protection circuitry between the inputs will begin to conduct when the differential input voltage reaches 8V.
Note 3: a) In addition, the voltage between the V a pin and either input pin must not exceed 36V.
b) When the voltage applied to an input pin is driven more than 0.3V below the negative supply pin voltage, a substrate diode begins to conduct. Current
through this pin must then be kept less than 20 mA to limit damage from self-heating.
Note 4: Although the output current is internally limited, continuous short-circuit operation at elevated ambient temperature can result in exceeding the maximum
allowed junction temperature of 150§ C.
Note 5: This value is the average voltage that the weakest pin combinations can withstand and still conform to the datasheet limits. The test circuit used consists of
the human body model, 100 pF in series with 1500X.
Note 6: The typical thermal resistance, junction-to-ambient, of the molded plastic DIP (N package) is 105§ C/W. For the molded plastic SO (M package), use
155§ C/W. All numbers apply for packages soldered directly into a printed circuit board.
Note 7: Typical values are for TJ
25§ C, and represent the most likely parametric norm.
Note 8: Limits are guaranteed, by testing or correlation.
Note 9: Voltage Gain is the total output swing (20V) divided by the magnitude of the input signal required to produce that swing.
Note 10: For single-supply operation, the following conditions apply: V a 5V, V
0V, VCM
2.5V, VOUT
connected to pin 4 (V ) to realize maximum output swing. This connection will increase the offset voltage.
Note 11: VIN
10V step. For g 5V supplies, VIN
1V step.
Note 12: A military RETS electrical test specification is available on request.
3
2.5V. Pin 1 and Pin 8 (VOS Adjust pins) are each
Typical Performance Characteristics
RL
10 kX, TA
25§ C unless otherwise noted
Supply Current vs
Supply Voltage
Common-Mode
Rejection Ratio
Power Supply
Rejection Ratio
Gain-Bandwidth Product
vs Supply Voltage
Gain-Bandwidth Product
vs Load Capacitance
Propagation Delay,
Rise and Fall Times
Slew Rate vs
Supply Voltage
Slew Rate vs
Load Capacitance
Overshoot vs
Load Capacitance
Output Impedance
(Open-Loop)
Voltage Gain vs
Load Resistance
Voltage Gain vs
Supply Voltage
TL/H/11061 3
4
Typical Performance Characteristics
10 kX, TA
(Continued)
25§ C unless otherwise noted
Differential Phase (Note)
Differential Gain (Note)
TL/H/11061 5
Note: Differential gain and differential phase
measured for four series LM6362 op amps configured with gain of a 2 each, in series with a
1:16 attenuator and an LM6321 buffer. Error
added by LM6321 is negligible. Test performed
using Tektronix Type 520 NTSC test system.
TL/H/11061 4
Step Response; Av
a2
Input (1V/div) Output (2V/div)
RL
TIME (50 ns/div)
Input Noise Voltage
Input Noise Current
TL/H/11061 6
Power Bandwidth
TL/H/11061 7
5
Typical Performance Characteristics
RL
10 kX, TA
(Continued)
25§ C unless otherwise noted
Open-Loop
Frequency Response
Open-Loop
High-Frequency Response
TL/H/11061 8
Common-Mode Input
Voltage Limits
TL/H/11061 9
Output Saturation Voltage
Bias Current vs
Common-Mode Voltage
TL/H/11061 10
Simplified Schematic
TL/H/11061 1
6
Application Tips
Power supply bypassing is not as critical for LM6362 as it is
for other op amps in its speed class. However, bypassing
will improve the stability and transient response of the
LM6362, and is recommended for every design. 0.01 mF to
0.1 mF ceramic capacitors should be used (from each supply ‘‘rail’’ to ground); if the device is far away from its power
supply source, an additional 2.2 mF to 10 mF of tantalum
may be required for extra noise reduction.
Keep all leads short to reduce stray capacitance and lead
inductance, and make sure ground paths are low-impedance, especially where heavier currents will be flowing.
Stray capacitance in the circuit layout can cause signal coupling from one pin, input or lead to another, and can cause
circuit gain to unintentionally vary with frequency.
Breadboarded circuits will work best if they are built using
generic PC boards with a good ground plane. If the op amps
are used with sockets, as opposed to being soldered into
the circuit, the additional input capacitance may degrade
circuit frequency response. At low gains ( a 2 or b1), a
feedback capacitor Cf from output to inverting input will
compensate for the phase lag caused by capacitance at the
inverting input. Typically, values from 2 pF to 5 pF work well;
however, best results can be obtained by observing the amplifier pulse response and optimizing Cf for the particular
layout.
The LM6362 has been decompensated for a wider gainbandwidth product than the LM6361. However, the LM6362
still offers stability at gains of 2 (and b1) or greater over the
specified ranges of temperature, power supply voltage, and
load. Since this decompensation involved reducing the emitter-degeneration resistors in the op amp’s input stage, the
DC precision has been increased in the form of lower offset
voltage and higher open-loop gain.
Other op amps in this family include the LM6361, LM6364,
and LM6365. If unity-gain stability is required, the LM6361
should be used. The LM6364 has been decompensated for
operation at gains of 5 or more, with corresponding greater
gain-bandwidth product (125 MHz, typical) and DC precision. The fully-uncompensated LM6365 offers gain-bandwidth product of 725 MHz, typical, and is stable for gains of
25 or more. All parts in this family, regardless of compensation, have the same high slew rate of 300 V/ms (typ).
The LM6362 is unusually tolerant of capacitive loads. Most
op amps tend to oscillate when their load capacitance is
greater than about 200 pF (in low-gain circuits). However,
load capacitance on the LM6362 effectively increases its
compensation capacitance, thus slowing the op amp’s response and reducing its bandwidth. The compensation is
not ideal, though, and ringing may occur in low-gain circuits
with large capacitive loads.
Typical Applications
Offset Voltage Adjustment
Inverting Amplifier, 30 MHz Bandwidth
TL/H/11061 11
Operation on g 15V
supplies results in wider
bandwidth, 50 MHz
(typ).
TL/H/11061 12
7
Typical Applications (Continued)
Video Cable Driver
*Network required when operating on supply voltage
over g 5V, for overvoltage protection of LM6321. If
g 5V supplies are used, omit network and connect
output of LM6362 directly to input of LM6321.
TL/H/11061 13
8
9
Physical Dimensions inches (millimeters)
20-Lead Small Outline Package (E)
Order Number LM6162E/883
NS Package Number E20A
Ceramic Dual-In-Line Package (J)
Order Number LM6162J/883
NS Package Number J08A
10
Physical Dimensions inches (millimeters) (Continued)
Molded Package SO (M)
Order Number LM6262M or LM6362M
NS Package Number M08A
Molded Dual-In-Line Package (N)
Order Number LM6162N, LM6262N or LM6362N
NS Package Number N08E
11
LM6162/LM6262/LM6362 High Speed Operational Amplifier
Physical Dimensions inches (millimeters) (Continued)
10-Pin Ceramic Flatpak
Order Number LM6162W/883
NS Package Number W10A
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