LMH6732
High Speed Op Amp with Adjustable Bandwidth
General Description
The LMH6732 is a high speed op amp with a unique com-
bination of high performance, low power consumption, and
flexibility of application. The supply current is adjustable,
over a continuous range of more than 10 to 1, with a single
resistor, R
P
. This feature allows the device to be used in a
wide variety of high performance applications including de-
vice turn on/ turn off (Enable/ Disable) for power saving or
multiplexing. Typical performance at any supply current is
exceptional. The LMH6732's design has been optimized so
that the output is well behaved, eliminating spurious outputs
on "Enable".
The LMH6732's combination of high performance, low
power consumption, and large signal performance makes it
ideal for a wide variety of remote site equipment applications
such as battery powered test instrumentation and communi-
cations gear. Other applications include video switching ma-
trices, ATE and phased array radar systems.
The LMH6732 is available in the SOIC and SOT23-6 pack-
ages. To reduce design times and assist in board layout, the
LMH6732 is supported by an evaluation board.
Features
n
Exceptional Performance at any Supply Current:
V
S
=
5V, T
A
= 25C, A
V
= +2V/V, V
OUT
= 2V
PP
, Typical
unless Noted:
I
CC
(mA)
-3dB
BW
(MHz)
DG/DP (%/
deg.)
PAL
Slew
Rate
(V/s)
THD
1MHz
(dBc)
Output
Current
(mA)
1.0
55
0.020/ 0.036
400
-70.0
9
3.4
180
0.022 / 0.017
2100
-78.5
45
9.0
540
0.025 / 0.010
2700
-79.6
115
n
Ultra High Speed (-3dB BW)
1.5GHz (I
CC
= 10mA,
0.25V
PP
)
n
Single resistor adjustability of supply current
n
Fast enable/ disable capability
20ns (I
CC
= 9mA)
n
"Popless" output on "Enable"
15mV (I
CC
= 1mA)
n
Ultra low disable current
<
1A
n
Unity gain stable
n
Improved Replacement for CLC505 & CLC449
Applications
n
Battery powered systems
n
Video switching and distribution
n
Remote site instrumentation
n
Mobile communications gear
-3dB BW vs. I
CC
Turn-On/Off Characteristics
20060262
20060250
March 2004
LMH6732
High
Speed
Op
Amp
with
Adjustable
Bandwidth
2004 National Semiconductor Corporation
DS200602
www.national.com
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
S
6.75V
I
OUT
(Note 3)
I
CC
14mA
Common Mode Input Voltage
V
-
to V
+
Maximum Junction Temperature
+150C
Storage Temperature Range
-65C to +150C
Soldering Information
Infrared or Convection (20 sec)
235C
Wave Soldering (10 sec)
260C
ESD Tolerance (Note 4)
Human Body Model
2000V
Machine Model
200V
Operating Ratings
(Note 1)
Thermal Resistance
Package
JC
(C/W)
JA
(C/W)
8-Pin SOIC
65C/W
166C/W
6-Pin SOT23
120C/W
198C/W
Operating Temperature
-40C to +85C
Nominal Supply Voltage
4.5V to
6V
Operating Supply Current
0.5mA
<
I
CC
<
12mA
Electrical Characteristics I
CC
= 9mA
(Note 2)
A
V
= +2, R
F
= 700
, V
S
=
5V, R
L
= 100
, R
P
= 39k
; Unless otherwise specified.
Symbol
Parameter
Conditions
Min
(Note 6)
Typ
(Note 6)
Max
(Note 6)
Units
Frequency Domain Response
SSBW
-3dB Bandwidth
V
OUT
= 2V
PP
540
MHz
LSBW
-3dB Bandwidth
V
OUT
= 4.0V
PP
315
MHz
GF
0.1dB
0.1dB Gain Flatness
V
OUT
= 2V
PP
180
MHz
GFP
Frequency Response Peaking
DC to 200MHz, V
OUT
= 2V
PP
0.01
dB
GFR
Frequency Response Rolloff
DC to 200MHz, V
OUT
= 2V
PP
0.15
dB
LPD
Linear Phase Deviation
DC to 200MHz, V
OUT
= 2V
PP
0.6
deg
DC to 140MHz, V
OUT
= 2V
PP
0.1
DG
Differential Gain
R
L
= 150
, 4.43MHz
0.025
%
DP
Differential Phase
R
L
= 150
, 4.43MHz
0.010
deg
Time Domain Response
TRS
Rise Time
2V Step
0.8
ns
TRL
Fall Time
2V Step
0.9
T
S
Settling Time to 0.04%
A
V
= -1, 2V Step
18
ns
OS
Overshoot
2V Step
1
%
SR
Slew Rate
5V Step, 40% to 60%
(Note 5)
2700
V/s
Distortion And Noise Response
HD2
2nd Harmonic Distortion
2V
PP
, 20MHz
-60
dBc
HD3
3rd Harmonic Distortion
2V
PP
, 20MHz
-64
dBc
THD
Total Harmonic Distortion
2V
PP
, 1MHz
-79.6
dBc
V
N
Input Referred Voltage Noise
>
1MHz
2.5
nV/
I
N
Input Referred Inverting Noise
Current
>
1MHz
9.7
pA/
I
NN
Input Referred Non-Inverting Noise
Current
>
1MHz
1.8
pA/
SNF
Noise Floor
>
1MHz
-154
dBm
1Hz
INV
Total Integrated Input Noise
1MHz to 200MHz
60
V
Static, DC Performance
V
IO
Input Offset Voltage
3.0
8.0
9.9
mV
DV
IO
Input Offset Voltage Average Drift
(Note 8)
16
V/C
LMH6732
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2
Electrical Characteristics I
CC
= 9mA
(Note 2) (Continued)
A
V
= +2, R
F
= 700
, V
S
=
5V, R
L
= 100
, R
P
= 39k
; Unless otherwise specified.
Symbol
Parameter
Conditions
Min
(Note 6)
Typ
(Note 6)
Max
(Note 6)
Units
I
BN
Input Bias Current
Non Inverting (Note 7)
-2
11
12
A
DI
BN
Input Bias Current Average Drift
Non-Inverting (Note 8)
5
nA/C
I
BI
Input Bias Current
Inverting (Note 7)
-9
20
30
A
DI
BI
Input Bias Current Average Drift
Inverting (Note 8)
-14
nA/C
+PSRR
Positive Power Supply Rejection
Ratio
DC
52
50
62
dB
-PSRR
Negative Power Supply Rejection
Ratio
DC
51
48
56
dB
CMRR
Common Mode Rejection Ratio
DC
49
46
52
dB
I
CC
Supply Current
R
L
=
, R
P
= 39k
7.5
6.6
9.0
10.5
11.7
mA
I
CC
I
Supply Current During Shutdown
<
1
A
Miscellaneous Performance
R
IN
Input Resistance
Non-Inverting
4.7
M
C
IN
Input Capacitance
Non-Inverting
1.8
pF
R
OUT
Output Resistance
Closed Loop
32
m
V
O
Output Voltage Range
R
L
=
3.60
3.55
3.75
V
V
OL
R
L
= 100
2.90
2.85
3.10
CMIR
Common Mode Input Range
Common Mode
2.2
V
I
O
Output Current
Closed Loop
-40mV
V
O
40mV
75
115
mA
TON
Turn-on Time
0.5V
PP
Sine Wave, 90% of
Full Value
20
ns
TOFF
Turn-off Time
0.5V
PP
Sine Wave,
<
5% of
Full Value
9
V
O glitch
Turn-on Glitch
50
mV
FDTH
Feed-Through
f = 10MHz, A
V
= +2, Off State
-61
dB
Electrical Characteristics I
CC
= 3.4mA
(Note 2)
A
V
= +2, R
F
= 1k
, V
S
=
5V, R
L
= 100
, R
P
= 137k
; Unless otherwise specified.
Symbol
Parameter
Conditions
Min
(Note 6)
Typ
(Note 6)
Max
(Note 6)
Units
Frequency Domain Response
SSBW
-3dB Bandwidth
V
OUT
= 2V
PP
180
MHz
LSBW
-3dB Bandwidth
V
OUT
= 4.0V
PP
100
MHz
GF
0.1dB
0.1dB Gain Flatness
V
OUT
= 2V
PP
50
MHz
GFP
Frequency Response Peaking
DC to 75MHz, V
OUT
= 2V
PP
0.15
dB
GFR
Frequency Response Rolloff
DC to 75MHz, V
OUT
= 2V
PP
0.05
dB
LPD
Linear Phase Deviation
DC to 55MHz, V
OUT
= 2V
PP
0.5
deg
DC to 25MHz, V
OUT
= 2V
PP
0.1
DG
Differential Gain
R
L
= 150
, 4.43MHz
0.022
%
DP
Differential Phase
R
L
= 150
, 4.43MHz
0.017
deg
Time Domain Response
LMH6732
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3
Electrical Characteristics I
CC
= 3.4mA
(Note 2) (Continued)
A
V
= +2, R
F
= 1k
, V
S
=
5V, R
L
= 100
, R
P
= 137k
; Unless otherwise specified.
Symbol
Parameter
Conditions
Min
(Note 6)
Typ
(Note 6)
Max
(Note 6)
Units
TRS
Rise Time
2V Step
1.7
ns
TRL
Fall Time
2V Step
2.1
T
S
Settling Time to 0.04%
A
V
= -1, 2V Step
18
ns
OS
Overshoot
2V Step
2
%
SR
Slew Rate
5V Step, 40% to 60%
(Note 5)
2100
V/s
Distortion And Noise Response
HD2
2nd Harmonic Distortion
2V
PP
, 10MHz
-51
dBc
HD3
3rd Harmonic Distortion
2V
PP
, 10MHz
-65
dBc
THD
Total Harmonic Distortion
2V
PP
, 1MHz
-78.5
dBc
V
N
Input Referred Voltage Noise
>
1MHz
4.1
nV/
I
N
Input Referred Inverting Noise
Current
>
1MHz
8.8
pA/
I
NN
Input Referred Non-Inverting Noise
Current
>
1MHz
1.1
pA/
SNF
Noise Floor
>
1MHz
-151
dBm
1Hz
INV
Total Integrated Input Noise
1MHz to 100MHz
60
V
Static, DC Performance
V
IO
Input Offset Voltage
2.5
7.0
8.5
mV
DV
IO
Input Offset Voltage Average Drift
(Note 8)
10
V/C
I
BN
Input Bias Current
Non Inverting (Note 7)
-0.4
4
6
A
DI
BN
Input Bias Current Average Drift
Non-Inverting (Note 8)
8
nA/C
I
BI
Input Bias Current
Inverting (Note 7)
-1
12
16
A
DI
BI
Input Bias Current Average Drift
Inverting (Note 8)
-3
nA/C
+PSRR
Positive Power Supply Rejection
Ratio
DC
52
50
64
dB
-PSRR
Negative Power Supply Rejection
Ratio
DC
51
50
57
dB
CMRR
Common Mode Rejection Ratio
DC
49
48
55
dB
I
CC
Supply Current
R
L
=
, R
P
= 137k
2.8
2.6
3.4
3.9
4.1
mA
I
CC
I
Supply Current During Shutdown
<
1
A
Miscellaneous Performance
R
IN
Input Resistance
Non-Inverting
15
M
C
IN
Input Capacitance
Non-Inverting
1.7
pF
R
OUT
Output Resistance
Closed Loop
50
m
V
O
Output Voltage Range
R
L
=
3.60
3.55
3.78
V
V
OL
R
L
= 100
2.90
2.85
3.10
CMIR
Common Mode Input Range
Common Mode
2.2
V
I
O
Output Current
Closed Loop
-20mV
V
O
20mV
30
45
mA
LMH6732
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4
Electrical Characteristics I
CC
= 3.4mA
(Note 2) (Continued)
A
V
= +2, R
F
= 1k
, V
S
=
5V, R
L
= 100
, R
P
= 137k
; Unless otherwise specified.
Symbol
Parameter
Conditions
Min
(Note 6)
Typ
(Note 6)
Max
(Note 6)
Units
TON
Turn-on Time
0.5V
PP
Sine Wave, 90% of
Full Value
42
ns
TOFF
Turn-off Time
0.5V
PP
Sine Wave,
<
5% of
Full Value
10
V
O glitch
Turn-on Glitch
25
mV
FDTH
Feed-Through
f = 10MHz, A
V
= +2, Off State
-61
dB
Electrical Characteristics I
CC
= 1.0mA
(Note 2)
A
V
= +2, R
F
= 1k
, V
S
=
5V, R
L
= 500
, R
P
= 412k
; Unless otherwise specified.
Symbol
Parameter
Conditions
Min
(Note 6)
Typ
(Note 6)
Max
(Note 6)
Units
Frequency Domain Response
SSBW
-3dB Bandwidth
V
OUT
= 2V
PP
55
MHz
LSBW
-3dB Bandwidth
V
OUT
= 4.0V
PP
30
MHz
GF
0.1dB
0.1dB Gain Flatness
V
OUT
= 2V
PP
20
MHz
GFP
Frequency Response Peaking
DC to 25MHz, V
OUT
= 2V
PP
0.11
dB
GFR
Frequency Response Rolloff
DC to 25MHz, V
OUT
= 2V
PP
0.05
dB
LPD
Linear Phase Deviation
DC to 20MHz, V
OUT
= 2V
PP
1
deg
DC to 14MHz, V
OUT
= 2V
PP
0.3
DG
Differential Gain
R
L
= 500
, 4.43MHz
0.020
%
DP
Differential Phase
R
L
= 500
, 4.43MHz
0.036
deg
Time Domain Response
TRS
Rise Time
2V Step
3.7
ns
TRL
Fall Time
2V Step
5.1
T
S
Settling Time to 0.04%
A
V
= -1, 2V Step
18
ns
OS
Overshoot
2V Step
2
%
SR
Slew Rate
5V Step, 40% to 60%
(Note 5)
400
V/s
Distortion And Noise Response
HD2
2nd Harmonic Distortion
2V
PP
, 5MHz
-43
dBc
HD3
3rd Harmonic Distortion
2V
PP
, 5MHz
-65
dBc
THD
Total Harmonic Distortion
2V
PP
, 1MHz
-70.0
dBc
V
N
Input Referred Voltage Noise
>
1MHz
8.4
nV/
I
N
Input Referred Inverting Noise
Current
>
1MHz
9.0
pA/
I
NN
Input Referred Non-Inverting Noise
Current
>
1MHz
0.8
pA/
SNF
Noise Floor
>
1MHz
-147
dBm
1Hz
INV
Total Integrated Input Noise
1MHz to 100MHz
29
V
Static, DC Performance
V
IO
Input Offset Voltage
1.6
6.0
7.3
mV
DV
IO
Input Offset Voltage Average Drift
(Note 8)
4
V/C
I
BN
Input Bias Current
Non Inverting (Note 7)
0.04
2.0
2.5
A
DI
BN
Input Bias Current Average Drift
Non-Inverting (Note 8)
-1
nA/C
I
BI
Input Bias Current
Inverting (Note 7)
-0.1
6
8
A
LMH6732
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