1
FN7307.5
EL5171, EL5371
250MHz Differential Twisted-Pair Drivers
The EL5171 and EL5371 are single and triple 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 input signal
is single-ended and the outputs are always in differential
form.
On the EL5171 and EL5371, two feedback inputs provide
the user with the ability to set the gain of each device (stable
at minimum gain of one). For a fixed gain of two, please see
EL5170 and EL5370.
The output common mode level for each channel is set by
the associated V
REF
pin, which have a -3dB bandwidth of
over 50MHz. 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 EL5171 and EL5371 are specified for operation over the
full -40C to +85C temperature range.
Features
Fully differential outputs and feedback
Input range 2.3V typ.
250MHz 3dB bandwidth
800V/s slew rate
Low distortion at 5MHz
Single 5V or dual 5V supplies
90mA maximum output current
Low power - 8mA 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
Ordering Information
PART
NUMBER
PACKAGE
TAPE &
REEL
PKG. DWG. #
EL5171IS
8-Pin SO
-
MDP0027
EL5171IS-T7
8-Pin SO
7"
MDP0027
EL5171IS-T13
8-Pin SO
13"
MDP0027
EL5171ISZ
(See Note)
8-Pin SO
(Pb-free)
-
MDP0027
EL5171ISZ-T7
(See Note)
8-Pin SO
(Pb-free)
7"
MDP0027
EL5171ISZ-T13
(See Note)
8-Pin SO
(Pb-free)
13"
MDP0027
EL5371IU
28-Pin QSOP
-
MDP0040
EL5371IU-T7
28-Pin QSOP
7"
MDP0040
EL5371IU-T13
28-Pin QSOP
13"
MDP0040
NOTE: Intersil Pb-free 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.
Pinouts
EL5171
(8-PIN SO)
TOP VIEW
EL5371
(28-PIN QSOP)
TOP VIEW
-
+
FBP
IN+
REF
FBN
OUT+
VS-
VS+
OUT-
1
2
3
4
8
7
6
5
1
2
3
4
28
27
26
25
5
6
7
24
23
22
8
21
9
10
20
19
11
12
13
18
17
16
14
15
-
+
-
+
-
+
OUT1
FBP1
FBN1
OUT1B
VSP
VSN
OUT2
FBP2
FBN2
OUT2B
OUT3
FBP3
FBN3
OUT3B
NC
INP1
INN1
REF1
NC
INP2
INN2
REF2
NC
INP3
INN3
REF3
NC
EN
Data Sheet
February 16, 2005
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-352-6832
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2004, 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
2
FN7307.5
February 16, 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 (EL5171)
V
OUT
= 3V
P-P
, 20% to 80%
600
800
1000
V/s
Slew Rate (EL5371)
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
e
S
Channel Separation
at f = 1MHz
90
dB
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
-
Tested only for EL5371
3.1
3.4
V
CMIR-
Common Mode Negative Input Range at V
IN
+, V
IN
- Tested only for EL5371
-4.5
-4.2
V
V
REFIN
+
Positive Reference Input Voltage Range (EL5371)
V
IN
+ = V
IN
- = 0V
3.5
3.8
V
EL5171, EL5371
3
FN7307.5
February 16, 2005
V
REFIN
-
Negative Reference Input Voltage Range (EL5371) V
IN
+ = V
IN
- = 0V
-3.3
-3
V
V
REFOS
Output Offset Relative to V
REF
(EL5371)
60
100
mV
CMRR
Input Common Mode Rejection Ratio (EL5371)
V
IN
= 2.5V
70
82
dB
Gain
Gain Accuracy
V
IN
= 1 (EL5171)
0.981
0.996
1.011
V
V
IN
= 1 (EL5371)
0.978
0.993
1.008
V
OUTPUT CHARACTERISTICS
V
OUT
Output Voltage Swing
R
L
= 500
to GND (EL5171)
3.4
V
R
L
= 500
to GND (EL5371)
3.6
3.9
V
I
OUT
(Max)
Maximum Output Current
R
L
= 10
, V
IN
= 3.24 (EL5171)
70
90
120
mA
R
L
= 10
, V
IN
= 3.24 (EL5371)
50
70
90
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 (EL5371) EN pin tied to 4.8V
1.7
10
A
I
S(OFF)
-
Negative Power Supply Current - Disabled (EL5371)
-200
-120
A
PSRR
Power Supply Rejection Ratio
V
S
from 4.5V to 5.5V (EL5171)
70
84
dB
V
S
from 4.5V to 5.5V (EL5371)
65
83
dB
ENABLE (EL5371 ONLY)
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
122
130
A
I
IL-EN
EN Pin Input Current Low
At V
EN
= 0V
-10
-8
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
EL5171
EL5371
PIN NAME
PIN FUNCTION
1
17, 21, 27
FBP1, 2, 3
Feedback from non-inverting output
2
2, 6, 10
INP1, 2, 3
Non-inverting inputs
3
3, 7, 11
INN1, 2, 3
Inverting inputs, note that on EL5171, this pin is also the REF pin
4
16, 20, 26
FBN1, 2, 3
Feedback from inverting output
5
15, 19, 25
OUT1B, 2B, 3B
Inverting outputs
6
24
VSP
Positive supply
7
23
VSN
Negative supply
8
18, 22, 28
OUT1, 2, 3
Non-inverting outputs
1, 5, 9, 13
NC
No connects, grounded for best crosstalk performance
4, 8, 12
REF1, 2, 3
Reference input, sets common-mode output voltage
14
EN
ENABLE
EL5171, EL5371
4
FN7307
.5
Feb
r
uar
y 16, 200
5
Connection Diagrams
EL5171
EL5371
FBP
INP
REF
FBN
OUT
VSN
VSP
OUTB
1
2
3
4
8
7
6
5
INP
REF
C
L2
OUTB
OUT
-5V
+5V
R
F3
R
F1
R
G
5pF
R
LD
1k
C
L1
5pF
R
S1
50
R
S1
50
1
2
3
4
20
19
18
17
5
6
7
12
11
9
8
10
24
23
22
21
28
27
26
25
INP1
INN1
REF1
INP2
INN2
REF2
INP3
INN3
REF3
EN
OUT1
FBP1
FBN1
OUT1B
VSP
VSN
OUT2
FBP2
FBN2
OUT2B
OUT3
FBP3
FBn3
OUT3B
14
13
15
16
ENABLE
R
SR3
50
R
SN3
50
R
SP3
50
R
SR2
50
R
SN2
50
R
SP2
50
R
SR1
50
R
SN1
50
R
SP1
50
INP1
INN1
REF1
INP2
INN2
REF2
INP3
INN3
REF3
-5V
R
G
R
F
R
F
R
G
R
F
R
F
R
G
R
F
R
F
+5V
NC
NC
NC
NC
C
L1
5pF
C
L1B
5pF
C
L2
5pF
C
L2B
5pF
C
L3
5pF
C
L3B
5pF
R
LD1
1k
R
LD2
1k
R
LD3
1k
EL5171, EL5371
5
FN7307.5
February 16, 2005
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
FIGURE 5. FREQUENCY RESPONSE
FIGURE 6. FREQUENCY RESPONSE vs R
LD
4
3
1
0
-2
-3
-5
-6
10M
100M
1G
MA
GNITUDE (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
MA
GNITUDE (
d
B
)
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
NORMINALIZED GAIN
(dB)
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
MA
GNITUDE (dB)
A
V
= 1, R
LD
= 1k
10
9
7
6
4
3
1
0
10M
100M
400M
NORMAL
IZED GAIN
(dB)
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
NORMALIZED 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
EL5171, EL5371
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