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Электронный компонент: CLC428AJE-TR13

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CLC428
Dual Wideband, Low Noise, Voltage Feedback Op Amp
General Description
The National CLC428 is a very high speed dual op amp that
offers a traditional voltage-feedback topology featuring unity
gain stability and slew enhanced circuitry. The CLC428's
ultra low noise and very low harmonic distortion combine to
form a very wide dynamic range op amp that operates from
a single (5 to 12V) or dual (
5V) power supply.
Each of the CLC428's closely matched channels provides a
160MHz unity gain bandwidth with an ultra low input voltage
noise density (2nV/
). Very low 2nd/3rd harmonic distor-
tion (-62dB) make the CLC428 a perfect wide dynamic range
amplifier for matched I/Q channels.
With its fast and accurate settling (16ns to 0.1%), the
CLC428 is also an excellent choice for wide dynamic range,
anti-aliasing filters to buffer the inputs of hi-resolution
analog-to-digital converters. Combining the CLC428's two
tightly matched amplifiers in a single eight-pin SOIC reduces
cost and board space for many composite amplifier applica-
tions such as active filters, differential line drivers/receivers,
fast peak detectors and instrumentation amplifiers.
To reduce design times and assist in board layout, the
CLC428 is supported by an evaluation board and a SPICE
simulation model available from National.
Features
n
Wide unity gain bandwidth: 160MHz
n
Ultra low noise: 2.0nV/
n
Low Distortion: -78dBc 2nd (2MHz)
n
Low Distortion: -62/-72dBc (10MHz)
n
Settling time: 16ns to 0.1%
n
Supply voltage range:
2.5 to
5 or single supply
n
High output current:
70mA
Applications
n
General purpose dual op amp
n
Low noise integrators
n
Low noise active filters
n
Diff-in/diff-out instrumentation amp
n
Driver/receiver for transmission systems
n
High speed detectors I/Q channel amplifiers
Typical Application
Channel Matching
DS012710-1
Frequency & Phase Response
DS012710-3
5-Decade Integrator
DS012710-2
September 2001
CLC428
Dual
W
ideband,
Low
Noise,
V
oltage
Feedback
Op
Amp
2001 National Semiconductor Corporation
DS012710
www.national.com
Connection Diagram
Ordering Information
Package
Temperature Range
Industrial
Part Number
Package Marking
NSC Drawing
8-pin plastic DIP
-40C to +85C
CLC428AJP
CLC428AJP
N08E
8-pin plastic SOIC
-40C to +85C
CLC428AJE
CLC428AJE
M08A
DS012710-35
Pinout
DIP & SOIC
CLC428
www.national.com
2
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
7V
Short Circuit Current
(see note 6)
Common-Mode Input Voltage
V
CC
Differential Input Voltage
10V
Maximum Junction Temperature
+150C
Storage Temperature Range
-65C to +150C
Lead Temperature (soldering 10 sec)
+300C
Operating Ratings
Thermal Resistance
Package
(
JC
)
(
JA
)
MDIP
60C/W
115C/W
SOIC
40C/W
115C/W
Electrical Characteristics
V
CC
=
5 V, A
V
= +2V/V, R
f
=100
, R
g
= 100
, R
L
= 100
; unless specified.
Symbol
Parameter
Conditions
Typ
Min/Max Ratings
(Note 2)
Units
Ambient Temperature
CLC428AJ
+25C
+25C
0 to
+70C
-40 to
+85C
Frequency Domain Response
Gain Bandwidth Product
V
OUT
<
0.5V
PP
135
100
80
70
MHz
-3dB Bandwidth, A
V
= +1
V
OUT
<
0.5V
PP
160
120
90
80
MHz
A
V
= +2
V
OUT
<
0.5V
PP
80
50
40
35
MHz
V
OUT
<
5.0V
PP
40
25
22
20
MHz
Gain Flatness
V
OUT
<
0.5V
PP
Peaking
DC to 200MHz
0.0
0.6
0.8
1.0
dB
Rolloff
DC to 20MHz
0.05
0.5
0.7
0.7
dB
Linear Phase Deviation
DC to 20MHz
0.2
1.0
1.5
1.5
deg
Time Domain Response
Rise and Fall Time
1V Step
5.5
7.5
9.0
10.0
ns
Settling Time
2V Step to 0.1%
16
20
24
24
ns
Overshoot
1V Step
1
5
10
10
%
Slew Rate
5V Step
500
300
275
250
V/s
Distortion And Noise Response
2nd Harmonic Distortion
1V
PP
, 10MHz
-62
-50
-45
-43
dBc
3rd Harmonic Distortion
1V
PP
, 10MHz
-72
-60
-56
-56
dBc
Equivalent Input Noise
Voltage
1MHz to 100MHz
2.0
2.5
2.8
2.8
nV/
Current
1MHz to 100MHz
2.0
3.0
3.6
4.6
pA/
Crosstalk
Input Referred, 10MHz
-62
-58
-58
-58
dB
Static, DC Performance
Open-Loop Gain
60
56
50
50
dB
Input Offset Voltage (Note 3)
1.0
2.0
3.0
3.5
mV
Average Drift
5
-
15
20
V/C
Input Bias Current (Note 3)
1.5
25
40
65
A
Average Drift
150
-
600
700
nA/C
Input Offset Current
0.3
3
5
5
A
Average Drift
5
-
25
50
nA/C
Power Supply Rejection Ratio
(Note 4)
66
60
55
55
dB
Common-Mode Rejection Ratio
63
57
52
52
dB
Supply Current (Note 3)
Per Channel, R
L
=
11
12
13
15
mA
CLC428
www.national.com
3
Electrical Characteristics
(Continued)
V
CC
=
5 V, A
V
= +2V/V, R
f
=100
, R
g
= 100
, R
L
= 100
; unless specified.
Symbol
Parameter
Conditions
Typ
Min/Max Ratings
(Note 2)
Units
Miscellaneous Performance
Input Resistance
Common-Mode
500
250
125
125
k
Differential-Mode
200
50
25
25
k
Input Capacitance
Common-Mode
2.0
3.0
3.0
3.0
pF
Differential-Mode
2.0
3.0
3.0
3.0
pF
Output Resistance
Closed-Loop
0.05
0.1
0.2
0.2
Output Voltage Range
R
L
=
3.8
3.5
3.3
3.3
V
R
L
= 100
3.5
3.2
2.6
1.3
V
Input Voltage Range
Common- Mode
3.7
3.5
3.3
3.3
V
Output Current
70
50
40
20
mA
Note 1: "Absolute Maximum Ratings" are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices
should be operated at these limits. The table of "Electrical Characteristics" specifies conditions of device operation.
Note 2: Min/max ratings are based on product characterization and simulation. Individual parameters are tested as noted. Outgoing quality levels are determined
from tested parameters.
Note 3: J-level: spec. is 100% tested at +25C, sample tested at +85C.
Note 4: J-level: spec. is 100% tested at +25C.
Note 5: Specifications guaranteed using 0.5V
PP
but tested at 0.1 V
PP
.
Note 6: Output is short circuit protected to ground, however maximum reliability is obtained if output current does not exceed 160mA.
Typical Performance Characteristics
(T
A
= +25, A
V
= +2, V
CC
=
5V, R
f
=100
, R
L
= 100
, un-
less specified)
Non-Inverting Frequency Response
DS012710-4
Inverting Frequency Response
DS012710-5
Frequency Response vs. Load Resistance
DS012710-6
Frequency Response vs. Output Amplitude
DS012710-7
CLC428
www.national.com
4
Typical Performance Characteristics
(T
A
= +25, A
V
= +2, V
CC
=
5V, R
f
=100
, R
L
= 100
,
unless specified) (Continued)
Frequency Response vs. Capacitive Load
DS012710-8
Gain Flatness & Linear Phase Deviation
DS012710-9
Maximum Output Voltage vs. Load
DS012710-10
Channel-to-Channel Crosstalk
DS012710-11
Open-Loop Gain & Phase
DS012710-12
2nd and 3rd Harmonic Distortion
DS012710-13
CLC428
www.national.com
5