700MHz Differential Twisted-Pair Drivers
EL5178, EL5378
The EL5178 and EL5378 are single and triple high bandwidth
amplifiers with an output in differential form. They are
primarily targeted for applications such as driving twisted-pair
lines in component video applications. The inputs can be in
either single-ended or differential form but the outputs are
always in differential form.
On the EL5178 and EL5378, two feedback inputs provide the
user with the ability to set the gain of each device (stable at
minimum gain of 2).
The output common mode level for each channel is set by the
associated REF pin, which has a -3dB bandwidth of over
110MHz. Generally, these pins are grounded but can be tied to
any voltage reference.
All outputs are short circuit protected to withstand temporary
overload condition.
The EL5178 is available in 8 Ld MSOP and SOIC packages and
EL5378 is available in a 28 Ld QSOP package. All are specified
for operation over the full -40°C to +85°C temperature range.
Features
• Fully differential inputs, outputs, and feedback
• Differential input range ±2.3V
• 700MHz 3dB bandwidth
• 1000V/µs slew rate
• Low distortion at 5MHz and 20MHz
• Single 5V or dual ±5V supplies
• 60mA maximum output current
• Low power - 12.5mA per channel
• Pb-free available (RoHS compliant)
Applications
• Twisted-pair driver
• Differential line driver
• VGA over twisted-pair
• ADSL/HDSL driver
• Single-ended to differential amplification
• Transmission of analog signals in a noisy environment
Pinouts
EL5178
(8 LD MSOP, SOIC)
TOP VIEW
FBP 1
IN+ 2
REF 3
FBN 4
+
-
8 OUT+
7 VS-
6 VS+
5 OUT-
NC 1
INP1 2
INN1 3
REF1 4
NC 5
INP2 6
INN2 7
REF2 8
NC 9
INP3 10
INN3 11
REF3 12
NC 13
EN 14
+
-
+
-
+
-
EL5378
(28 LD QSOP)
TOP VIEW
28 OUT1
27 FBP1
26 FBN1
25 OUT1B
24 VSP
23 VSN
22 OUT2
21 FBP2
20 FBN2
19 OUT2B
18 OUT3
17 FBP3
16 FBN3
15 OUT3B
August 28, 2012
FN7491.5
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Copyright Intersil Americas Inc. 2004, 2005, 2007, 2010, 2012. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
EL5178, EL5378
Pin Descriptions
EL5178
EL5378
17, 21, 27
2, 6, 10
3, 7, 11
16, 20, 26
15, 19, 25
24
23
18, 22, 28
1, 5, 9, 13
4, 8, 12
14
1
2
3
4
5
6
7
8
PIN NAME
FBP3, FBP2, FBP1
INP1, INP2, INP3
INN1, INN2, INN3
FBN3, FBN2, FBN1
OUT3B, OUT2B, OUT1B
VSP
VSN
OUT3, OUT2, OUT1
NC
REF1, REF2, REF3
EN
FBP
IN+
REF
FBN
OUT-
VS+
VS-
OUT+
PIN FUNCTION
Feedback from non-inverting outputs
Non-inverting inputs
Inverting inputs, note that on EL5178, this pin is also the REF pin
Feedback from inverting outputs
Inverting outputs
Positive supply
Negative supply
Non-inverting outputs
No connect; grounded for best crosstalk performance
Reference inputs, sets common-mode output voltage
ENABLE
Feedback from non-inverting output
Non-inverting input
Inverting input, note that on EL5178, this pin is also the REF pin
Feedback from inverting output
Inverting output
Positive supply
Negative supply
Non-inverting output
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
EL5178ISZ
EL5178IYZ
EL5378IUZ
NOTES:
1. Add “-T*” suffix for tape and reel. Please refer to
TB347
for details on reel specifications.
2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil
Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
3. For Moisture Sensitivity Level (MSL), please see device information page for
EL5178, EL5378.
For more information on MSL please see tech brief
TB363.
5178ISZ
BBHAA
EL5378IUZ
PART
MARKING
8 Ld SOIC (150 mil)
8 Ld MSOP (3.0mm)
28 Ld QSOP (150 mil)
PACKAGE
(Pb-free)
M8.15E
M8.118A
M28.15
PKG.
DWG. #
2
FN7491.5
August 28, 2012
EL5178, EL5378
Absolute Maximum Ratings
(T
A
= +25°C)
Supply Voltage (V
S
+ to V
S
-) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V
Supply Voltage Rate-of-rise (dV/dT) . . . . . . . . . . . . . . . . . . . . . . . . . . . 1V/µs
Input Voltage (IN+, IN- to V
S
+, V
S
-) . . . . . . . . . . . . . V
S
- - 0.3V to V
S
+ + 0.3V
Differential Input Voltage (IN+ to IN-). . . . . . . . . . . . . . . . . . . . . . . . . . ±4.8V
Maximum Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±60mA
Input Current (all inputs and references). . . . . . . . . . . . . . . . . . . . . . . . 4mA
ESD Rating
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3kV
Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300V
Thermal Information
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .+135°C
Ambient Operating Temperature . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
Power Dissipation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typ 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
Electrical Specifications
V
S
+ = +5V, V
S
- = -5V, T
A
= +25°C, V
IN
= 0V, R
LD
= 1kΩ, C
LD
= 2.7pF, [R
F
= 604Ω, R
G
= 402Ω (EL5178)],
[R
F
= 402Ω, R
G
= 274Ω (EL5378)], unless otherwise specified.
PARAMETER
DESCRIPTION
CONDITIONS
MIN
(Note 4)
TYP
MAX
(Note 4)
UNIT
AC PERFORMANCE
BW
-3dB Bandwidth
A
V
= 2, C
LD
= 2.7pF
A
V
= 5, C
LD
= 2.7pF
A
V
= 2, C
LD
= 2.7pF, R
LD
= 200Ω
BW
SR
±0.1dB Bandwidth
Slew Rate, Differential (EL5178)
Slew Rate, Differential (EL5378)
t
STL
t
OVR
GBWP
V
REF
BW (-3dB)
V
REF
SR+
V
REF
SR-
V
N
I
N
HD2
Settling Time to 0.1%
Output Overdrive Recovery Time
Gain Bandwidth Product
V
REF
-3dB Bandwidth (EL5378)
V
REF
Slew Rate - Rise (EL5378)
V
REF
Slew Rate - Fall (EL5378)
Input Voltage Noise
Input Current Noise
Second Harmonic Distortion
C
LD
= 2.7pF
V
OUT
= 2V
P-P
, 20% to 80%
V
OUT
= 2V
P-P
, 20% to 80%
at 10kHz
at 10kHz
V
OUT
= 2V
P-P
, 5MHz
V
OUT
= 2V
P-P
, 20MHz
HD3
Third Harmonic Distortion
V
OUT
= 2V
P-P
, 5MHz
V
OUT
= 2V
P-P
, 20MHz
dG
dθ
e
S
Differential Gain at 3.58MHz
Differential Phase at 3.58MHz
Channel Separation (EL5378)
R
LD
= 300Ω, A
V
= 2
R
LD
= 300Ω, A
V
= 2
at F = 1MHz
A
V
= 2, C
LD
= 2.7pF
V
OUT
= 3V
P-P
, 20% to 80%
V
OUT
= 3V
P-P
, 20% to 80%
V
OUT
= 2V
P-P
A
V
= 2
650
650
700
80
320
45
850
1000
35
20
350
110
134
70
18
1.5
-83
-72
-88
-70
0.06
0.13
90
MHz
MHz
MHz
MHz
V/µs
V/µs
ns
ns
MHz
MHz
V/µs
V/µs
nV/√Hz
pA/√Hz
dBc
dBc
dBc
dBc
%
°
dB
INPUT CHARACTERISTICS
V
OS
I
IN
I
REF
R
IN
Input Referred Offset Voltage
Input Bias Current (V
IN
+, V
IN
-)
Input Bias Current (V
REF
) (EL5378)
Differential Input Resistance
V
REF
= ±3.0V
-20
0.05
±1.9
-14
2.3
150
±30
-7
4
mV
µA
µA
kΩ
3
FN7491.5
August 28, 2012
EL5178, EL5378
V
S
+ = +5V, V
S
- = -5V, T
A
= +25°C, V
IN
= 0V, R
LD
= 1kΩ, C
LD
= 2.7pF, [R
F
= 604Ω, R
G
= 402Ω (EL5178)],
[R
F
= 402Ω, R
G
= 274Ω (EL5378)], unless otherwise specified. (Continued)
PARAMETER
C
IN
DMIR
CMIR+
CMIR-
V
REFIN
+
V
REFIN
-
V
REFOS
CMRR
DESCRIPTION
Differential Input Capacitance
Differential Mode Input Range (EL5378)
Common Mode Positive Input Range at
V
IN
+, V
IN
- (EL5378)
Common Mode Negative Input Range at
V
IN
+, V
IN
- (EL5378)
Positive Reference Input Voltage Range
(EL5378)
Negative Reference Input Voltage Range
(EL5378)
Output Offset Relative to V
REF
(EL5378)
Input Common Mode Rejection Ratio
V
IN
= ±2.5V
65
V
IN
+ = V
IN
- = 0V
V
IN
+ = V
IN
- = 0V
3.2
3.1
CONDITIONS
MIN
(Note 4)
TYP
1
±2.3
3.4
-4.4
3.7
-3.3
±50
78
-3.2
±100
-4.1
MAX
(Note 4)
UNIT
pF
V
V
V
V
V
mV
dB
Electrical Specifications
OUTPUT CHARACTERISTICS
V
OUT
I
OUT
(Max)
R
OUT
Output Voltage Swing
Maximum Output Current
Output Impedance
R
L
= 1kΩ
R
L
= 10Ω, V
IN
+ = ±3.2V
±3.4
±50
±3.7
±60
130
±100
V
mA
mΩ
SUPPLY
V
SUPPLY
I
S(ON)
I
S(OFF)
+
I
S(OFF)
-
PSRR
Supply Operating Range
Power Supply Current - Per Channel
Positive Power Supply Current - Disabled
(EL5378)
Negative Power Supply Current - Disabled
(EL5378)
Power Supply Rejection Ratio
V
S
from ±4.5V to ±5.5V
EN pin tied to 4.8V
-200
60
V
S
+ to V
S
-
4.75
10
12.5
1.7
-120
75
11
14
10
V
mA
µA
µA
dB
ENABLE (EL5378 ONLY)
t
EN
t
DS
V
IH
V
IL
I
IH-EN
I
IL-EN
Enable Time
Disable Time
EN Pin Voltage for Power-Up
EN Pin Voltage for Shut-Down
EN Pin Input Current High
EN Pin Input Current Low
At V
EN
= 5V
At V
EN
= 0V
-20
V
S
+ - 0.5
123
-8
200
130
1.2
V
S
+ - 1.5
ns
µs
V
V
µA
µA
NOTE:
4. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested.
4
FN7491.5
August 28, 2012
EL5178, EL5378
Typical Performance Curves
20
V
S
= ±5V
R
LD
= 1kΩ
C
LD
= 0pF
A
V
= 2
GAIN (dB)
R
F
= 2kΩ
R
F
= 1kΩ
GAIN (dB)
V
S
= ±5V
15 R
LD
= 1kΩ
C
LD
= 0pF
10 R
F
= 422Ω
5
0
-5
-10
-15
100k
FREQUENCY (Hz)
A
V
= 5
A
V
= 2
R
F
= 422Ω
1M
10M
100M
1G
FREQUENCY (Hz)
FIGURE 1. EL5178 FREQUENCY RESPONSE FOR VARIOUS R
F
FIGURE 2. EL5178 FREQUENCY RESPONSE FOR VARIOUS GAIN
V
S
= ±5V
R
LD
= 200Ω
R
F
= 422Ω
A
V
= 2
GAIN (dB)
C
LD
= 22pF
C
LD
= 12pF
GAIN (dB)
V
S
= ±5V
R
F
= 422Ω
C
LD
= 0pF
A
V
= 2
R
LD
= 1kΩ
C
LD
= 5.6pF
C
LD
= 0pF
R
LD
= 200Ω
100k
FREQUENCY (Hz)
1M
10M
FREQUENCY (Hz)
100M
1G
FIGURE 3. EL5178 FREQUENCY RESPONSE FOR VARIOUS C
LD
FIGURE 4. EL5178 FREQUENCY RESPONSE FOR VARIOUS R
LD
GAIN (dB)
V
S
= ±5V
R
F
= 422Ω
R
LD
= 200Ω
C
LD
= 5.6pF
A
V
= 2
V
OPP
= 200mV
V
OPP
= 1V
GAIN (dB)
V
OPP
= 2V
V
S
= ±5V
R
LD
= 1kΩ
C
LD
= 0pF
A
V
= 2
R
f
= 422Ω
R
f
= 210Ω
R
f
= 154Ω
100k
1M
10M
FREQUENCY (Hz)
100M
1G
100k
1M
10M
FREQUENCY (Hz)
100M
1G
FIGURE 5. EL5178 FREQUENCY RESPONSE FOR VARIOUS V
OP-P
FIGURE 6. EL5378 FREQUENCY RESPONSE FOR VARIOUS R
F
5
FN7491.5
August 28, 2012
RF/Wirelessly
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