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1
FN7343.2
EL5176
250MHz Differential Twisted-Pair Driver
The EL5176 is a high bandwidth amplifier with an output in
differential form. It is primarily targeted for applications such
as driving twisted-pair lines or any application where
common mode injection is likely to occur. The input signal
can be in either single-ended or differential form but the
output is always in differential form.
On the EL5176, two feedback inputs provide the user with
the ability to set the device gain (stable at minimum gain of
one).
The output common mode level is set by the reference pin
(REF), which has a -3dB bandwidth of over 50MHz.
Generally, this pin is grounded but it can be tied to any
voltage reference.
Both outputs (OUT+, OUT-) are short circuit protected to
withstand temporary overload condition.
The EL5176 is available in the 10-pin MSOP package and is
specified for operation over the full -40C to +85C
temperature range.
See also EL5171 (EL5176 in 8-pin MSOP.)
Features
Fully differential inputs, outputs, and feedback
Differential input range 2.3V
250MHz 3dB bandwidth
800V/s slew rate
Low distortion at 20MHz
Single 5V or dual 5V supplies
40mA maximum output current
Low power - 8mA typical supply current
Pb-Free plus anneal available (RoHS compliant)
Applications
Twisted-pair drivers
Differential line drivers
VGA over twisted-pair
ADSL/HDSL drivers
Single ended to differential amplification
Transmission of analog signals in a noisy environment
Pinout
EL5176
(10-PIN MSOP)
TOP VIEW
Ordering Information
PART
NUMBER
PACKAGE
TAPE & REEL
PKG. DWG. #
EL5176IY
10-Pin MSOP
-
MDP0043
EL5176IY-T7
10-Pin MSOP
7"
MDP0043
EL5176IY-T13
10-Pin MSOP
13"
MDP0043
EL5176IYZ
(See Note)
10-Pin MSOP
(Pb-free)
-
MDP0043
EL5176IYZ-T7
(See Note)
10-Pin MSOP
(Pb-free)
7"
MDP0043
EL5176IYZ-T13
(See Note)
10-Pin MSOP
(Pb-free)
13"
MDP0043
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are 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.
1
2
3
4
10
9
8
7
FBP
IN+
REF
IN-
OUT+
VS-
VS+
EN
5
6
FBN
OUT-
-
+
Data Sheet
August 3, 2005
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2003-2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
2
FN7343.2
August 3, 2005
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
Absolute Maximum Ratings
(T
A
= 25C)
Supply Voltage (V
S
+ to V
S
-) . . . . . . . . . . . . . . . . . . . . . . . . . . . .12V
Maximum Output Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . 60mA
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65C to +150C
Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +135C
Ambient Operating Temperature . . . . . . . . . . . . . . . .-40C to +85C
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.
Electrical Specifications
V
S
+ = +5V, V
S
- = -5V, T
A
= 25C, V
IN
= 0V, R
LD
= 1k
, R
F
= 0, R
G
= OPEN, C
LD
= 2.7pF, Unless Otherwise
Specified
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
AC PERFORMANCE
BW
-3dB Bandwidth
A
V
= 1,
C
LD
= 2.7pF
250
MHz
A
V
= 2,
R
F
= 500, C
LD
= 2.7pF
60
MHz
A
V
= 10,
R
F
= 500, C
LD
= 2.7pF
10
MHz
BW
0.1dB Bandwidth
A
V
= 1,
C
LD
= 2.7pF
50
MHz
SR
Slew Rate - Rise
V
OUT
= 3V
P-P
, 20% to 80%
600
800
1000
V/s
Slew Rate - Fall
V
OUT
= 3V
P-P
, 20% to 80%
540
700
1000
V/s
T
STL
Settling Time to 0.1%
V
OUT
= 2V
P-P
10
ns
T
OVR
Output Overdrive Recovery Time
20
ns
GBWP
Gain Bandwidth Product
100
MHz
V
REF
BW
(-3dB) V
REF
-3dB Bandwidth
A
V
=1,
C
LD
= 2.7pF
50
MHz
V
REF
SR+
V
REF
Slew Rate - Rise
V
OUT
= 2V
P-P
, 20% to 80%
90
V/s
V
REF
SR-
V
REF
Slew Rate - Fall
V
OUT
= 2V
P-P
, 20% to 80%
50
V/s
V
N
Input Voltage Noise
at 10kHz
26
nV/
Hz
I
N
Input Current Noise
at 10kHz
2
pA/
Hz
HD2
Second Harmonic Distortion
V
OUT
= 2V
P-P
, 5MHz
-94
dBc
V
OUT
= 2V
P-P
, 20MHz
-94
dBc
HD3
Third Harmonic Distortion
V
OUT
= 2V
P-P
, 5MHz
-77
dBc
V
OUT
= 2V
P-P
, 20MHz
-75
dBc
dG
Differential Gain at 3.58MHz
R
L
= 300
,
A
V
= 2
0.1
%
d
Differential Phase at 3.58MHz
R
L
= 300
,
A
V
= 2
0.5
INPUT CHARACTERISTICS
V
OS
Input Referred Offset Voltage
1.5
25
mV
I
IN
Input Bias Current (V
IN
+, V
IN
-)
-14
-6
-3
A
I
REF
Input Bias Current (V
REF
)
0.5
1.3
4
A
R
IN
Differential Input Resistance
300
k
C
IN
Differential Input Capacitance
1
pF
DMIR
Differential Mode Input Range
2.1
2.3
2.5
V
CMIR+
Common Mode Positive Input Range at V
IN
+, V
IN
-
3.1
3.4
V
CMIR-
Common Mode Negative Input Range at V
IN
+, V
IN
-
-4.5
-4.2
V
V
REFIN
+
Positive Reference Input Voltage Range
V
IN
+ = V
IN
- = 0V
3.5
3.8
V
V
REFIN
-
Negative Reference Input Voltage Range
V
IN
+ = V
IN
- = 0V
-3.3
-3
V
V
REFOS
Output Offset Relative to V
REF
60
100
mV
EL5176
3
FN7343.2
August 3, 2005
CMRR
Input Common Mode Rejection Ratio
V
IN
= 2.5V
65
82
dB
Gain
Gain Accuracy
V
IN
= 1
0.981
0.996
1.011
V
OUTPUT CHARACTERISTICS
V
OUT
Positive Output Swing
R
L
= 500
to GND
3.6
3.9
V
Negative Output Swing
-3.8
-3.5
V
I
OUT
(Max)
Maximum Source Output Current
R
L
= 10
,
V
IN
+ = 1.1V,
V
IN
- = -1.1V,
V
REF
= 0
35
50
mA
Maximum Sink Output Current
-40
-30
mA
R
OUT
Output Impedance
130
m
SUPPLY
V
SUPPLY
Supply Operating Range
V
S
+ to V
S
-
4.75
11
V
I
S(ON)
Power Supply Current - Per Channel
6.8
7.5
8.2
mA
I
S(OFF)
+
Positive Power Supply Current - Disabled
EN pin tied to 4.8V
80
120
A
I
S(OFF)
-
Negative Power Supply Current - Disabled
-200
-120
A
PSRR
Power Supply Rejection Ratio
V
S
from 4.5V to 5.5V
70
84
dB
ENABLE
t
EN
Enable Time
215
ns
t
DS
Disable Time
0.95
s
V
IH
EN Pin Voltage for Power-Up
V
S
+ -
1.5
V
V
IL
EN Pin Voltage for Shut-Down
V
S
+ -
0.5
V
I
IH-EN
EN Pin Input Current High
At V
EN
= 5V
40
60
A
I
IL-EN
EN Pin Input Current Low
At V
EN
= 0V
-6
-2.5
A
Electrical Specifications
V
S
+ = +5V, V
S
- = -5V, T
A
= 25C, V
IN
= 0V, R
LD
= 1k
, R
F
= 0, R
G
= OPEN, C
LD
= 2.7pF, Unless Otherwise
Specified (Continued)
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
Pin Descriptions
PIN NUMBER
PIN NAME
PIN DESCRIPTION
1
FBP
Non-inverting feedback input; resistor R
F1
must be connected from this pin to V
OUT
2
IN+
Non-inverting input
3
REF
Output common-mode control; the common-mode voltage of V
OUT
will follow the voltage on this pin
4
IN-
Inverting input
5
FBN
Inverting feedback input; resistor R
F2
must be connected from this pin to V
OUT
6
OUT-
Inverting output
7
EN
Enabled when this pin is floating or the applied voltage
V
S
+ -1.5
8
VS+
Positive supply
9
VS-
Negative supply
10
OUT+
Non-inverting output
EL5176
4
FN7343.2
August 3, 2005
Connection Diagram
1
2
3
4
10
9
8
7
FBP
IN+
REF
IN-
OUT+
VS-
VS+
EN
5
6
FBN
OUT-
0
R
F2
0
R
F1
50
R
S3
50
R
S1
50
R
S2
OPEN
R
G
INN-
INP
1k
-5V
+5V
OUT+
OUT-
EN
VREF
R
LD
Typical Performance Curves
FIGURE 1. FREQUENCY RESPONSE
FIGURE 2. FREQUENCY RESPONSE FOR VARIOUS GAIN
FIGURE 3. FREQUENCY RESPONSE vs R
LD
FIGURE 4. FREQUENCY RESPONSE vs C
LD
4
3
1
0
-2
-3
-5
-6
10M
100M
1G
MAGNIT
UDE (dB)
FREQUENCY (Hz)
-4
-1
2
1M
V
OP-P
= 200mV
V
OP-P
= 1V
P-P
A
V
= 1, R
LD
= 1k
, C
LD
= 2.7pF
4
3
1
0
-2
-3
-5
-6
10M
100M
1G
FREQUENCY (Hz)
-4
-1
2
1M
A
V
= 1
NORMALIZ
E
D
MAGNITUDE
(dB)
A
V
= 2
A
V
= 5
A
V
= 10
R
LD
= 1k
, C
LD
= 2.7pF
4
3
1
0
-2
-3
-5
-6
10M
100M
1G
N
O
RM
I
NALIZ
ED GA
IN
(
d
B)
FREQUENCY (Hz)
-4
-1
2
1M
R
LD
= 1k
R
LD
= 200
R
LD
= 500
A
V
= 1, C
LD
= 2.7pF
5
4
2
1
-1
-2
-4
-5
10M
100M
1G
FREQUENCY (Hz)
-3
0
3
1M
C
LD
= 56pF
C
LD
= 34pF
C
LD
= 23pF
C
LD
= 9pF
C
LD
= 2.7pF
MAGNI
T
U
D
E
(
d
B)
A
V
= 1, R
LD
= 1k
EL5176
5
FN7343.2
August 3, 2005
FIGURE 5. FREQUENCY RESPONSE
FIGURE 6. FREQUENCY RESPONSE vs R
LD
FIGURE 7. FREQUENCY RESPONSE - V
REF
FIGURE 8. OUTPUT IMPEDANCE vs FREQUENCY
FIGURE 9. PSRR vs FREQUENCY
FIGURE 10. CMRR vs FREQUENCY
Typical Performance Curves
(Continued)
10
9
7
6
4
3
1
0
10M
100M
400M
N
O
RM
AL
IZE
D
G
A
IN
(
d
B)
FREQUENCY (Hz)
2
5
8
1M
R
F
= 1k
R
F
= 200
R
F
= 500
A
V
= 2, R
LD
= 1k
, C
LD
= 2.7pF
10
9
7
6
4
3
1
0
10M
100M
400M
NOR
M
ALIZED GAIN
(dB)
FREQUENCY (Hz)
2
5
8
1M
R
LD
= 1k
R
LD
= 200
R
LD
= 500
A
V
= 2, R
F
= 1k
, C
LD
= 2.7pF
5
4
2
1
-1
-2
-4
-5
1M
10M
100M
MAGNITUDE (dB)
FREQUENCY (Hz)
-3
0
3
100K
100
10
1
0.1
100K
1M
100M
IMPE
DENCE (
)
FREQUENCY (Hz)
10K
10M
0
-10
-30
-50
-60
-80
-90
10K
1M
100M
P
S
RR (
d
B
)
FREQUENCY (Hz)
-70
-40
-20
1K
100K
10M
PSRR+
PSRR-
1M
100M
CMRR (
d
B)
FREQUENCY (Hz)
100K
10M
1G
100
90
70
60
40
30
10
0
20
50
80
EL5176
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