1
FN7168
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Copyright Intersil Americas Inc. 2003. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
All other trademarks mentioned are the property of their respective owners.
EL4450
Wideband Four-Quadrant Multiplier
The EL4450 is a complete four-
quadrant multiplier circuit. It offers
wide bandwidth and good linearity
while including a powerful output voltage amplifier, drawing
modest supply current.
The EL4450 operates on 5V supplies and has an analog
input range of 2V, making it ideal for video signal
processing. AC characteristics do not vary over the 5V to
15V supply range.
The multiplier has an operational temperature range of
-40C to +85C and are packaged in plastic 14-pin PDIP and
SO.
Pinout
Features
Complete four-quadrant multiplier with output amp--
requires no extra components
Good linearity of 0.3%
90MHz bandwidth for both X and Y inputs
Operates on 5V to 15V supplies
All inputs are differential
400V/s slew rate
Applications
Modulation/Demodulation
RMS computation
Real-time power computation
Nonlinearity correction/generation
EL4450
(14-PIN PDIP, SO)
TOP VIEW
Ordering Information
PART
NUMBER
TEMP. RANGE
PACKAGE
PKG. NO.
EL4450CN
-40C to +85C
14-Pin PDIP
MDP0031
EL4450CM
-40C to +85C
14-Pin SO
MDP0027
Data Sheet
January 1996, Rev B
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2
Absolute Maximum Ratings
(T
A
= 25C)
V+
Positive Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . 16.5V
V
S
V+ to V- Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . .33V
V
IN
Voltage at any Input or Feedback . . . . . . . . . . . . . . . V+ to V-
V
IN
Difference between Pairs of Inputs or Feedback. . . . . . . . .6V
I
IN
Current into any Input or Feedback Pin. . . . . . . . . . . . . . 4mA
I
OUT
Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mA
P
D
Maximum Power Dissipation . . . . . . . . . . . . . . . . See Curves
T
A
Operating Temperature Range . . . . . . . . . . . . -40C to +85C
T
S
Storage Temperature Range. . . . . . . . . . . . . -60C to +150C
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests
are at the specified temperature and are pulsed tests, therefore: T
J
= T
C
= T
A
Open-Loop DC Electrical Specifications
Power Supplies at 5V, T
A
= 25C, V
FB
= V
OUT
.
PARAMETER
DESCRIPTION
MIN
TYP
MAX
UNITS
V
DIFF
Differential Input Voltage--Clipping
1.8
2.0
V
0.2% nonlinearity
1.0
V
V
CM
Common-Mode Range of V
DIFF
= 0, V
S
= 5V
2.5
2.8
V
V
S
= 15V
12.5
12.8
V
V
OS
Input Offset Voltage
8
35
mV
I
B
Input Bias Current
9
20
A
I
OS
Input Offset Current between X
IN
+ and X
IN
-, Y
IN
+ and Y
IN
-, REF and FB
0.5
4
A
Gain
Gain Factor of V
OUT
= Gain
X
IN
+
Y
IN
0.45
0.5
0.55
V/V
2
NLx
Nonlinearity of X Input; X
IN
between -1V and +1V
0.3
0.7
%
NLy
Nonlinearity of Y Input; Y
IN
between -1V and +1V
0.2
0.35
%
R
IN
Input resistance
X
IN
+ to X
IN
-, Y
IN
+ to Y
IN
-
230
k
REF to FB
90
CMRR
Common-Mode Rejection Ratio, X
IN
and Y
IN
70
90
dB
PSRR
Power-Supply Rejection Ratio, FB
60
72
dB
V
O
Output Voltage Swing
(V
IN
= 0, V
REF
Varied)
V
S
= 5V
2.5
2.8
V
V
S
= 15V
12.5
12.8
I
SC
Output Short-Circuit Current
40
85
mA
I
S
Supply Current, V
S
= 15V
15.4
18
mA
EL4450
3
Test Circuit
Typical Performance Curves
Closed-Loop AC Electrical Specifications
Power Supplies at 12V, T
A
= 25C, R
L
= 500
, C
L
= 15pF.
PARAMETER
DESCRIPTION
MIN
TYP
MAX
UNITS
BW, -3dB
-3dB Small-Signal Bandwidth, X or Y
90
MHz
BW, 0.1dB
0.1dB Flatness Bandwidth
10
MHz
Peaking
Frequency Response Peaking
1.0
dB
SR
Slew Rate, V
OUT
between -2V and +2V
300
400
V/s
V
N
Input-Referred Noise Voltage Density
100
nV/Hz
Note: For typical performance curves, R
F
= 0, R
G
=
, V
S
= 5V, R
L
= 500
, and C
L
= 15pF unless otherwise noted.
Transfer Function of X Input for
Various Y Inputs
Transfer Function of Y Input for
Various X Inputs
EL4450
4
Typical Performance Curves
(Continued)
Frequency Response
for Various Feedback
Divider Ratios
Frequency Response
for Various R
L
, C
L
V
S
= 5V
Frequency Response
for Various R
L
, C
L
V
S
= 15V
X Input Frequency Response
for Various Y DC Inputs
Y Input Frequency Response
for Various X DC Inputs
-3dB Bandwidth
and Peaking
vs Supply Voltage
Change in Bandwidth
and Peaking vs Temperature
Total Harmonic Distortion
of X Input vs Frequency
Total Harmonic Distortion
of Y Input vs Frequency
EL4450
5
Typical Performance Curves
(Continued)
Slew Rate
vs Supply Voltage
Slew Rate
vs Die Temperature
CMRR vs Frequency
Input Voltage Noise
vs Frequency
Nonlinearity of X Input
Nonlinearity of Y Input
Bias Current
vs Die Temperature
Common-Mode Input Range
vs Supply Voltage
Supply Current
vs Supply Voltage
Supply Current
vs Die Temperature
14-Pin Package
Power Dissipation vs
Ambient Temperature
EL4450
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