1
FN7344.2
EL5177
550MHz Differential Twisted-Pair Driver
The EL5177 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 EL5177, 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 110MHz. 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 EL5177 is available in the 10-pin MSOP package and is
specified for operation over the full -40C to +85C
temperature range.
See also EL5174 (EL5177 in 8-pin MSOP.)
Features
Pb-free available
Fully differential inputs, outputs, and feedback
Differential input range 2.3V
550MHz 3dB bandwidth
1100V/s slew rate
Low distortion at 20MHz
Single 5V or dual 5V supplies
40mA maximum output current
Low power - 12.5mA typical supply current
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
EL5177
(10-PIN MSOP)
TOP VIEW
Ordering Information
PART
NUMBER
PACKAGE
TAPE & REEL
PKG. DWG. #
EL5177IY
10-Pin MSOP
-
MDP0043
EL5177IY-T7
10-Pin MSOP
7"
MDP0043
EL5177IY-T13
10-Pin MSOP
13"
MDP0043
EL5177IYZ
(See Note)
10-Pin MSOP
(Pb-free)
-
MDP0043
EL5177IYZ-T7
(See Note)
10-Pin MSOP
(Pb-free)
7"
MDP0043
EL5177IYZ-
T13 (See Note)
10-Pin MSOP
(Pb-free)
13"
MDP0043
NOTE: Intersil Pb-free products employ special Pb-free material
sets; molding compounds/die attach materials and 100% matte tin
plate termination finish, which is 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-020B.
1
2
3
4
10
9
8
7
FBP
IN+
REF
IN-
OUT+
VS-
VS+
EN
5
6
FBN
OUT-
-
+
Data Sheet
August 11, 2004
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2003, 2004. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
All other trademarks mentioned are the property of their respective owners.
2
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
Recommended Operating Temperature . . . . . . . . . .-40C to +85C
V
IN
, V
INB
, V
REF
. . . . . . . . . . V
S
- + 0.8V (min) to V
S
+ - 0.8V (max)
V
IN
- V
INB
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5V
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
550
MHz
A
V
= 2,
R
F
= 500, C
LD
= 2.7pF
130
MHz
A
V
= 10,
R
F
= 500, C
LD
= 2.7pF
20
MHz
BW
0.1dB Bandwidth
A
V
= 1,
C
LD
= 2.7pF
120
MHz
SR
Slew Rate
V
OUT
= 3V
P-P
, 20% to 80%
800
1100
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
200
MHz
V
REF
BW
(-3dB) V
REF
-3dB Bandwidth
A
V
=1,
C
LD
= 2.7pF
110
MHz
V
REF
SR+
V
REF
Slew Rate - Rise
V
OUT
= 2V
P-P
, 20% to 80%
134
V/s
V
REF
SR-
V
REF
Slew Rate - Fall
V
OUT
= 2V
P-P
, 20% to 80%
70
V/s
V
N
Input Voltage Noise
at 10kHz
21
nV/
Hz
I
N
Input Current Noise
at 10kHz
2.7
pA/
Hz
HD2
Second Harmonic Distortion
V
OUT
= 2V
P-P
, 5MHz
-95
dBc
V
OUT
= 2V
P-P
, 20MHz
-94
dBc
HD3
Third Harmonic Distortion
V
OUT
= 2V
P-P
, 5MHz
-88
dBc
V
OUT
= 2V
P-P
, 20MHz
-87
dBc
dG
Differential Gain at 3.58MHz
R
LD
= 300
,
A
V
=2
0.06
%
d
Differential Phase at 3.58MHz
R
LD
= 300
,
A
V
=2
0.13
INPUT CHARACTERISTICS
V
OS
Input Referred Offset Voltage
1.4
25
mV
I
IN
Input Bias Current (V
IN
+, V
IN
-)
-20
-14
-7
A
I
REF
Input Bias Current (V
REF
)
0.5
2.3
4
A
R
IN
Differential Input Resistance
150
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
-
3.4
V
CMIR-
Common Mode Negative Input Range at V
IN
+, V
IN
-
-4.3
V
V
REFIN
+
Positive Reference Input Voltage Range
V
IN
+ = V
IN
- = 0V
3.4
3.7
V
V
REFIN
-
Negative Reference Input Voltage Range
V
IN
+ = V
IN
- = 0V
-3.3
-3
V
EL5177
3
V
REFOS
Output Offset Relative to V
REF
50
100
mV
CMRR
Input Common Mode Rejection Ratio
V
IN
= 2.5V
65
78
dB
Gain
Gain Accuracy
V
IN
= 1V
0.980
0.995
1.010
V
OUTPUT CHARACTERISTICS
V
OUT
Output Voltage Swing
R
L
= 500
to GND
3.6
3.8
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
I
OUT
-(Max)
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
10
12.5
14
mA
I
S(OFF)
+
Positive Power Supply Current - Disabled
EN pin tied to 4.8V
76
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
60
75
dB
ENABLE
t
EN
Enable Time
130
ns
t
DS
Disable Time
1.2
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
50
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
EL5177
4
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 C
LD
FIGURE 4. FREQUENCY RESPONSE vs R
LD
4
3
1
0
-2
-3
-5
-6
10M
100M
1G
M
A
GN
ITUDE
(
d
B)
FREQUENCY (Hz)
-4
-1
2
1M
A
V
= 1, R
LD
= 1k
, C
LD
= 2.7pF
V
OP-P
= 200mV
V
OP-P
= 1V
4
3
1
0
-2
-3
-5
-6
10M
100M
1G
FREQUENCY (Hz)
-4
-1
2
1M
NORMAL
IZED MA
GNITUDE (dB)
A
V
= 2
A
V
= 5
A
V
= 10
A
V
= 1
R
LD
= 1k
, C
LD
= 2.7pF
10
8
4
2
-2
-4
-8
-10
10M
100M
1G
FREQUENCY (Hz)
-6
0
6
1M
M
A
GN
ITUDE
(
d
B)
A
V
= 1, R
LD
= 1k
C
LD
= 50pF
C
LD
= 34pF
C
LD
= 23pF
C
LD
= 2.7pF
C
LD
= 9pF
4
3
1
0
-2
-3
-5
-6
10M
100M
1G
MA
GNITUDE (
d
B
)
FREQUENCY (Hz)
-4
-1
2
1M
R
LD
= 500
R
LD
= 200
R
LD
= 1k
A
V
= 1, C
LD
= 2.7pF
EL5177
5
FIGURE 5. FREQUENCY RESPONSE
FIGURE 6. FREQUENCY RESPONSE vs R
LD
FIGURE 7. FREQUENCY RESPONSE - V
REF
FIGURE 8. PSRR vs FREQUENCY
FIGURE 9. CMRR vs FREQUENCY
FIGURE 10. VOLTAGE AND CURRENT NOISE vs FREQUENCY
Typical Performance Curves
(Continued)
10
9
7
6
4
3
1
0
10M
100M
400M
FREQUENCY (Hz)
2
5
8
1M
MA
GNI
T
UDE (dB
)
R
F
= 200
R
F
= 500
R
F
= 1k
A
V
= 2, R
LD
= 1k
, C
LD
= 2.7pF
10
9
7
6
4
3
1
0
10M
100M
400M
FREQUENCY (Hz)
2
5
8
1M
MA
GNI
T
UDE (dB
)
A
V
= 2, C
LD
= 2.7pF, R
F
= 750
R
LD
= 200
R
LD
= 1k
R
LD
= 500
5
4
2
1
-1
-2
-4
-5
1M
10M
MA
GNITUDE (dB)
FREQUENCY (Hz)
-3
0
3
100K
100M
0
-10
-30
-50
-60
-80
-90
100K
100M
P
S
RR (dB)
FREQUENCY (Hz)
-70
-40
-20
10K
1M
10M
PSRR+
PSRR-
100
60
20
-20
CMRR (dB)
FREQUENCY (Hz)
80
40
0
100K
100M
1K
1M
1G
10K
10M
1K
100
10
1
V
O
L
T
A
G
E
N
O
IS
E (n
V/
Hz),
100
100K
10M
FREQUENCY (Hz)
10
10K
1M
1K
E
N
I
N
CURRENT NOISE
(
p
A/
Hz)
EL5177
PDF 
ZIP