1
FN7387.8
EL5160, EL5161, EL5260, EL5261, EL5360
200MHz Low-Power Current Feedback
Amplifiers
The EL5160, EL5161, EL5260, EL5261, and EL5360 are
current feedback amplifiers with a bandwidth of 200MHz and
operate from just 0.75mA supply current. This makes these
amplifiers ideal for today's high speed video and monitor
applications.
With the ability to run from a single supply voltage from 5V to
10V, these amplifiers are ideal for handheld, portable, or
battery-powered equipment.
The EL5160 also incorporates an enable and disable
function to reduce the supply current to 14A typical per
amplifier. Allowing the CE pin to float or applying a low logic
level will enable the amplifier.
The EL5160 is available in the 6-pin SOT-23 and 8-pin SO
packages, the EL5161 in 5-pin SOT-23 and SC-70
packages, the EL5260 in the 10-pin MSOP package, the
EL5261 in 8-pin SO and MSOP packages, the EL5360 in
16-pin SO and QSOP packages. All operate over the
industrial temperature range of -40C to +85C.
Features
200MHz -3dB bandwidth
0.75mA supply current
1700V/s slew rate
Single and dual supply operation, from 5V to 10V supply
span
Fast enable/disable (EL5160, EL5260 & EL5360 only)
Available in SOT-23 packages
Pb-Free plus anneal available (RoHS compliant)
Applications
Battery-powered equipment
Handheld, portable devices
Video amplifiers
Cable drivers
RGB amplifiers
Test equipment
Instrumentation
Current-to-voltage converters
Pinouts
EL5160
(8-PIN SO)
TOP VIEW
EL5160
(6-PIN SOT-23)
TOP VIEW
EL5161
(5-PIN SOT-23, SC-70)
TOP VIEW
EL5260
(10-PIN MSOP)
TOP VIEW
EL5261
(8-PIN SO, MSOP)
TOP VIEW
EL5360
(16-PIN SO, QSOP)
TOP VIEW
1
2
3
4
8
7
6
5
-
+
NC
IN-
IN+
VS-
CE
VS+
OUT
NC
1
2
3
6
4
5
-
+
OUT
VS-
IN+
VS+
IN-
CE
1
2
3
5
4
-
+
OUT
VS-
IN+
VS+
IN-
1
2
3
4
10
9
8
7
5
6
OUT
IN-
IN+
VS-
VS+
OUT
IN-
IN+
CE
CE
-
+
7
-
+
1
2
3
4
8
7
6
5
-
+
-
+
OUTA
INA-
INA+
VS+
INB-
OUTB
VS-
INB+
1
2
3
4
16
15
14
13
5
6
7
12
11
10
8
9
-
+
-
+
-
+
INA+
CEA
VS-
CEB
INB+
NC
CEC
INC+
INA-
OUTA
VS+
OUTB
INB-
NC
OUTC
INC-
Data Sheet
September 8, 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. 2004, 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
2
FN7387.8
September 8, 2005
Ordering Information
PART NUMBER
PACKAGE
TAPE &
REEL
PKG.
DWG. #
EL5160IS
8-Pin SO (0.150")
-
MDP0027
EL5160IS-T7
8-Pin SO (0.150")
7"
MDP0027
EL5160IS-T13
8-Pin SO (0.150")
13"
MDP0027
EL5160ISZ
(See Note)
8-Pin SO (0.150")
(Pb-Free)
-
MDP0027
EL5160ISZ-T7
(See Note)
8-Pin SO (0.150")
(Pb-Free)
7"
MDP0027
EL5160ISZ-T13
(See Note)
8-Pin SO (0.150")
(Pb-Free)
13"
MDP0027
EL5160IW-T7
6-Pin SOT-23
7" (3K pcs)
MDP0038
EL5160IW-T7A
6-Pin SOT-23
7" (250 pcs)
MDP0038
EL5160IWZ-T7
(See Note)
6-Pin SOT-23
(Pb-Free)
7" (3K pcs)
MDP0038
EL5160IWZ-T7A
(See Note)
6-Pin SOT-23
(Pb-Free)
7" (250 pcs)
MDP0038
EL5161IW-T7
5-Pin SOT-23
7" (3K pcs)
MDP0038
EL5161IW-T7A
5-Pin SOT-23
7" (250 pcs)
MDP0038
EL5161IWZ-T7
(See Note)
5-Pin SOT-23
(Pb-Free)
7" (3K pcs)
MDP0038
EL5161IWZ-T7A
(See Note)
5-Pin SOT-23
(Pb-Free)
7" (250 pcs)
MDP0038
EL5161IC-T7
5-Pin SC-70
7" (3K pcs)
P5.049
EL5161IC-T7A
5-Pin SC-70
7" (250 pcs)
P5.049
EL5260IY
10-Pin MSOP
-
MDP0043
EL5260IY-T7
10-Pin MSOP
7"
MDP0043
EL5260IY-T13
10-Pin MSOP
13"
MDP0043
EL5260IYZ
(See Note)
10-Pin MSOP
(Pb-free)
-
MDP0043
EL5260IYZ-T7
(See Note)
10-Pin MSOP
(Pb-free)
7"
MDP0043
EL5260IYZ-T13
(See Note)
10-Pin MSOP
(Pb-free)
13"
MDP0043
EL5261IY
8-Pin MSOP
-
MDP0043
EL5261IY-T7
8-Pin MSOP
7"
MDP0043
EL5261IY-T13
8-Pin MSOP
13"
MDP0043
EL5261IS
8-Pin SO (0.150")
-
MDP0027
EL5261IS-T7
8-Pin SO (0.150")
7"
MDP0027
EL5261IS-T13
8-Pin SO (0.150")
13"
MDP0027
EL5261ISZ
(See Note)
8-Pin SO (0.150")
(Pb-free)
-
MDP0027
EL5261ISZ-T7
(See Note)
8-Pin SO (0.150")
(Pb-free)
7"
MDP0027
EL5261ISZ-T13
(See Note)
8-Pin SO (0.150")
(Pb-free)
13"
MDP0027
EL5360IS
16-Pin SO (0.150")
-
MDP0027
EL5360IS-T7
16-Pin SO (0.150")
7"
MDP0027
EL5360IS-T13
16-Pin SO (0.150")
13"
MDP0027
EL5360ISZ
(See Note)
16-Pin SO (0.150")
(Pb-Free)
-
MDP0027
EL5360ISZ-T7
(See Note)
16-Pin SO (0.150")
(Pb-Free)
7"
MDP0027
EL5360ISZ-T13
(See Note)
16-Pin SO (0.150")
(Pb-Free)
13"
MDP0027
EL5360IU
16-Pin QSOP
-
MDP0040
EL5360IU-T7
16-Pin QSOP
7"
MDP0040
EL5360IU-T13
16-Pin QSOP
13"
MDP0040
EL5360IUZ
(See Note)
16-Pin QSOP
(Pb-Free)
-
MDP0040
EL5360IUZ-T7
(See Note)
16-Pin QSOP
(Pb-Free)
7"
MDP0040
EL5360IUZ-T13
(See Note)
16-Pin QSOP
(Pb-Free)
13"
MDP0040
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.
Ordering Information
(Continued)
PART NUMBER
PACKAGE
TAPE &
REEL
PKG.
DWG. #
EL5160, EL5161, EL5260, EL5261, EL5360
3
FN7387.8
September 8, 2005
3
Absolute Maximum Ratings
(T
A
= 25C)
Supply Voltage between V
S
+ and V
S
- . . . . . . . . . . . . . . . . . . . 13.2V
Maximum Continuous Output Current . . . . . . . . . . . . . . . . . . . 50mA
Slew Rate of V
S
+ to V
S
- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1V/s
Pin Voltages . . . . . . . . . . . . . . . . . . . . . . . . V
S
- - 0.5V to V
S
+ + 0.5V
Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +125C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65C to +150C
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.
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
Electrical Specifications
V
S
+ = +5V, V
S
- = -5V, R
F
= 750
for A
V
= 1, R
L
= 150
, V
CE, H
= V
S
+,
V
CE, L
= (V
S
+
) -3V, T
A
= 25C, Unless
Otherwise Specified
.
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
AC PERFORMANCE
BW
-3dB Bandwidth
A
V
= +1, R
L
= 500
200
MHz
A
V
= +2, R
L
= 150
125
MHz
BW1
0.1dB Bandwidth
R
L
= 100
10
MHz
SR
Slew Rate
V
O
= -2.5V to +2.5V, A
V
= +2, R
F
= R
G
= 1k
,
R
L
= 100
900
1700
2500
V/s
EL5260, EL5261
800
1300
2500
V/s
SR
500
Load
1360
V/s
t
S
0.1% Settling Time
V
OUT
= -2.5V to +2.5V, A
V
= +2
35
ns
e
N
Input Voltage Noise
4
nV/
Hz
i
N
-
IN- Input Current Noise
7
pA/
Hz
i
N
+
IN+ Input Current Noise
8
pA/
Hz
HD2
5MHz, 2.5V
P-P
, R
L
= 150
, A
V
= +2
-74
dBc
HD3
5MHz, 2.5V
P-P
, R
L
= 150
, A
V
= +2
-50
dBc
dG
Differential Gain Error (Note 1)
A
V
= +2
0.1
%
dP
Differential Phase Error (Note 1)
A
V
= +2
0.1
DC PERFORMANCE
V
OS
Offset Voltage
-5
1.6
+5
mV
T
C
V
OS
Input Offset Voltage Temperature
Coefficient
Measured from T
MIN
to T
MAX
6
V/C
R
OL
Transimpedance
2.5V
OUT
into 150
800
2000
k
INPUT CHARACTERISTICS
CMIR
Common Mode Input Range
Guaranteed by CMRR test
3
3.3
V
CMRR
Common Mode Rejection Ratio
V
IN
= 3V
50
62
75
dB
-ICMR
- Input Current Common Mode Rejection
-1
+1
A/V
+I
IN
+ Input Current
-4
+4
A
-I
IN
- Input Current
-5
+5
A
R
IN
Input Resistance
1.5
4
15
M
C
IN
Input Capacitance
1
pF
EL5160, EL5161, EL5260, EL5261, EL5360
4
FN7387.8
September 8, 2005
OUTPUT CHARACTERISTICS
V
O
Output Voltage Swing
R
L
= 150
to GND
3.1
3.4
3.8
V
R
L
= 1k
to GND
3.8
4.0
4.2
V
I
OUT
Output Current
R
L
= 10
to GND
40
70
140
mA
SUPPLY
I
SON
Supply Current - Enabled, per Amplifier
No load, V
IN
= 0V (EL5160, EL5161,
EL5260, EL5261)
0.6
0.75
0.85
mA
No load, V
IN
= 0V (EL5360)
0.6
0.8
0.92
mA
I
SOFF
+
Supply Current - Disabled, per Amplifier
0
10
25
A
I
SOFF
-
Supply Current - Disabled, per Amplifier
No load, V
IN
= 0V
-25
-14
0
A
PSRR
Power Supply Rejection Ratio
DC, V
S
= 4.75V to 5.25V
65
74
dB
-IPSR
- Input Current Power Supply Rejection
DC, V
S
= 4.75V to 5.25V
-0.5
0.1
0.5
A/V
ENABLE (EL5160, EL5260, EL5360 ONLY)
t
EN
Enable Time
600
ns
t
DIS
Disable Time
800
ns
I
CE, H
CE Pin Input High Current
CE = V
S
+
1
5
25
A
I
CE, L
CE Pin Input Low Current
CE = (V
S
+) - 5V
-1
0
1
A
NOTE:
1. Standard NTSC test, AC signal amplitude = 286mV
P-P
, f = 3.58MHz
Electrical Specifications
V
S
+ = +5V, V
S
- = -5V, R
F
= 750
for A
V
= 1, R
L
= 150
, V
CE, H
= V
S
+,
V
CE, L
= (V
S
+
) -3V, T
A
= 25C, Unless
Otherwise Specified
. (Continued)
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
Typical Performance Curves
FIGURE 1. FREQUENCY RESPONSE
FIGURE 2. FREQUENCY RESPONSE
V
CC
=+5V
V
EE
=-5V
R
L
=150
A
V
=2
R
F
=806
R
G
=806
100K
1M
10M
100M
1G
3
1
-1
-3
-5
-7
NORMALIZE
D
GAIN
(
d
B)
FREQUENCY (Hz)
V
CC
=+5V
V
EE
=-5V
A
V
=1
R
L
=500
R
F
=2800
100K
1M
10M
100M
1G
FREQUENCY (Hz)
4
2
0
-2
-4
-6
NORMALIZE
D
GAIN
(
d
B)
EL5160, EL5161, EL5260, EL5261, EL5360
5
FN7387.8
September 8, 2005
FIGURE 3. FREQUENCY RESPONSE FOR VARIOUS
V
CC
, V
EE
FIGURE 4. FREQUENCY RESPONSE FOR VARIOUS
V
CC
, V
EE
FIGURE 5. FREQUENCY RESPONSE
FIGURE 6. R
OL
FIGURE 7. RISE TIME
FIGURE 8. FALL TIME
Typical Performance Curves
(Continued)
R
L
=500
R
F
=2.7k6
A
V
=1
100K
1M
10M
100M
1G
5
3
1
-1
-3
-5
NORMALIZED GAIN
(dB)
FREQUENCY (Hz)
2.5V
6V
5V
4V
3V
A
V
= 2
R
L
=150
R
F
=R
G
=762
100K
1M
10M
100M
1G
4
2
0
-2
-4
-6
NORMALIZED GAIN
(dB)
FREQUENCY (Hz)
2.5V
6V
5V
3V
4V
V
CC
=+5V
V
EE
=-5V
A
V
=10
R
L
=500
R
F
=560
100K
1M
10M
100M
1G
4
2
0
-2
-4
-6
NORMALIZED GAIN
(
d
B)
FREQUENCY (Hz)
1K
10K
100K
10M
1G
100M
10M
1M
100K
10K
100
FREQUENCY (Hz)
1M
100M
1K
V
CC
=+5V
V
EE
=-5V
A
V
=2
R
L
=150
R
F
=R
G
=422
INPUT
1V/DIV
OUTPUT
500mV/DIV
4ns/DIV
V
CC
=+5V
V
EE
=-5V
A
V
=2
R
L
=150
R
F
=R
G
=422
INPUT
1V/DIV
OUTPUT
500mV/DIV
4ns/DIV
EL5160, EL5161, EL5260, EL5261, EL5360
6
FN7387.8
September 8, 2005
FIGURE 9. DISABLE DELAY TIME
FIGURE 10. ENABLE DELAY TIME
FIGURE 11. PSSR
FIGURE 12. CLOSED LOOP OUTPUT IMPEDANCE
FIGURE 13. FREQUENCY RESPONSE FOR VARIOUS GAIN
SETTINGS
FIGURE 14. FREQUENCY RESPONSE FOR VARIOUS
FEEDBACK RESISTORS, A
V
=-1
Typical Performance Curves
(Continued)
5V/DIV
400ns/DIV
V
CC
=+5V
V
EE
=-5V
200mV/DIV
V
OUT
CE
V
CC
=+5V
V
EE
=-5V
5V/DIV
200mV/DIV
V
OUT
CE
400ns/DIV
V
CC
V
EE
V
CC
=+5V
V
EE
=-5V
1K
10K
10M
100M
1G
0
-20
-40
-60
-80
-100
PSRR (dB)
FREQUENCY (Hz)
1M
100K
V
CC
=+5V
V
EE
=-5V
10K
100K
100M
1K
100
10
1
100m
10m
OUT
P
UT
IMPEDANCE (
)
FREQUENCY (Hz)
10M
1M
V
S
=5V
R
F
=1.5k
R
G
=750
R
L
=150
A
V
=+2
A
V
=-2
A
V
=-5
100K
1M
1G
4
2
0
-2
-4
-6
N
O
RMAL
IZED GAIN
(dB)
FREQUENCY (Hz)
100M
10M
V
S
=5V
A
V
=-1
R
G
=768
R
L
=150
100K
1M
1G
4
2
0
-2
-4
-6
N
O
RMAL
IZED GAIN
(dB)
FREQUENCY (Hz)
100M
10M
R
F
=768
R
F
=1k
R
F
=1.5k
R
F
=1.2k
EL5160, EL5161, EL5260, EL5261, EL5360
7
FN7387.8
September 8, 2005
FIGURE 15. FREQUENCY RESPONSE FOR VARIOUS GAIN
SETTINGS
FIGURE 16. FREQUENCY RESPONSE FOR VARIOUS
FEEDBACK RESISTORS, A
V
=+1
FIGURE 17. PACKAGE POWER DISSIPATION vs AMBIENT
TEMPERATURE
FIGURE 18. PACKAGE POWER DISSIPATION vs AMBIENT
TEMPERATURE
FIGURE 19. PACKAGE POWER DISSIPATION vs AMBIENT
TEMPERATURE
FIGURE 20. PACKAGE POWER DISSIPATION vs AMBIENT
TEMPERATURE
Typical Performance Curves
(Continued)
V
S
=5V
R
F
=R
G
=768
R
L
=500
A
V
=-1
100K
1M
1G
4
2
0
-2
-4
-6
NORMALIZED GAIN
(dB)
FREQUENCY (Hz)
100M
10M
A
V
=+10
A
V
=-5
A
V
=+5
V
S
=5V
A
V
=+1
R
L
=150
100K
1M
1G
5
3
1
-1
-3
-5
NORMALIZED GAIN
(dB)
FREQUENCY (Hz)
100M
10M
R
F
=750
R
F
=1k
R
F
=2.8k
1.250W
909mW
SO16 (0.150")
JA
=80C/W
0
25
150
1.4
1.2
0.8
0.4
0.2
0
POWER D
I
SS
IP
AT
ION (W)
FREQUENCY (Hz)
100
50
125
75
1
0.6
85
SO8
JA
=110C/W
435mW
SOT23-5/6
JA
=110C/W
JEDEC JESD51-7 HIGH EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD
JEDEC JESD51-7 HIGH EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD
0
25
150
1.4
1.2
0.8
0.4
0.2
0
POWER D
I
SS
IP
AT
ION (W)
FREQUENCY (Hz)
100
50
125
75
1
0.6
85
893mW
QSOP16
JA
=112C/W
870mW
MSOP8/10
JA
=115C/W
JEDEC JESD51-3 LOW EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD
0
25
150
1
0.8
0.4
0.2
0.1
0
POWER DIS
S
IP
AT
ION (W)
FREQUENCY (Hz)
100
50
125
75
0.6
0.3
85
0.9
0.7
0.5
909mW
SO16 (0.150")
JA
=110C/W
625mW
391mW
SOT23-5/6
JA
=256C/W
SO8
JA
=160C/W
0
25
150
1.2
0.8
0.4
0.2
0
POWE
R DI
SSI
PATI
ON (
W
)
FREQUENCY (Hz)
100
50
125
75
0.6
85
1
633mW
QSOP16
JA
=158C/W
486mW
MSOP8/10
JA
=206C/W
JEDEC JESD51-3 LOW EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD
EL5160, EL5161, EL5260, EL5261, EL5360
8
FN7387.8
September 8, 2005
Applications Information
Product Description
The EL5160, EL5161, EL5260, EL5261, and EL5360 are low
power, current-feedback operational amplifiers that offer a
wide -3dB bandwidth of 200MHz and a low supply current of
0.75mA per amplifier. The EL5160, EL5161, EL5260,
EL5261, and EL5360 work with supply voltages ranging from
a single 5V to 10V and they are also capable of swinging to
within 1V of either supply on the output. Because of their
current-feedback topology, the EL5160, EL5161, EL5260,
EL5261, and EL5360 do not have the normal gain-
bandwidth product associated with voltage-feedback
operational amplifiers. Instead, their -3dB bandwidth to
remain relatively constant as closed-loop gain is increased.
This combination of high bandwidth and low power, together
with aggressive pricing make the EL5160, EL5161, EL5260,
EL5261, and EL5360 ideal choices for many low-
power/high-bandwidth applications such as portable,
handheld, or battery-powered equipment.
Power Supply Bypassing and Printed Circuit
Board Layout
As with any high frequency device, good printed circuit
board layout is necessary for optimum performance. Low
impedance ground plane construction is essential. Surface
mount components are recommended, but if leaded
components are used, lead lengths should be as short as
possible. The power supply pins must be well bypassed to
reduce the risk of oscillation. The combination of a 4.7F
tantalum capacitor in parallel with a 0.01F capacitor has
been shown to work well when placed at each supply pin.
For good AC performance, parasitic capacitance should be
kept to a minimum, especially at the inverting input. (See the
Capacitance at the Inverting Input section) Even when
ground plane construction is used, it should be removed
from the area near the inverting input to minimize any stray
capacitance at that node. Carbon or Metal-Film resistors are
acceptable with the Metal-Film resistors giving slightly less
peaking and bandwidth because of additional series
inductance. Use of sockets, particularly for the SO package,
should be avoided if possible. Sockets add parasitic
inductance and capacitance which will result in additional
peaking and overshoot.
Pin Descriptions
EL5160
(8-PIN SO)
EL5160
(6-PIN
SOT-23)
EL5161
(5-PIN
SOT-23)
PIN NAME
FUNCTION
EQUIVALENT CIRCUIT
1, 5
NC
Not connected
2
4
4
IN-
Inverting input
Circuit 1
3
3
3
IN+
Non-inverting input
(See circuit 1)
4
2
2
VS-
Negative supply
6
1
1
OUT
Output
Circuit 2
7
6
5
VS+
Positive supply
8
5
CE
Chip enable
Circuit 3
IN-
IN+
V
S
+
V
S
-
V
S
+
V
S
-
OUT
V
S
+
V
S
-
CE
EL5160, EL5161, EL5260, EL5261, EL5360
9
FN7387.8
September 8, 2005
Disable/Power-Down
The EL5160 amplifier can be disabled placing its output in a
high impedance state. When disabled, the amplifier supply
current is reduced to < 15A. The EL5160 is disabled when
its CE pin is pulled up to within 1V of the positive supply.
Similarly, the amplifier is enabled by floating or pulling its CE
pin to at least 3V below the positive supply. For 5V supply,
this means that an EL5160 amplifier will be enabled when
CE is 2V or less, and disabled when CE is above 4V.
Although the logic levels are not standard TTL, this choice of
logic voltages allows the EL5160 to be enabled by tying CE
to ground, even in 5V single supply applications. The CE pin
can be driven from CMOS outputs.
Capacitance at the Inverting Input
Any manufacturer's high-speed voltage- or current-feedback
amplifier can be affected by stray capacitance at the
inverting input. For inverting gains, this parasitic capacitance
has little effect because the inverting input is a virtual
ground, but for non-inverting gains, this capacitance (in
conjunction with the feedback and gain resistors) creates a
pole in the feedback path of the amplifier. This pole, if low
enough in frequency, has the same destabilizing effect as a
zero in the forward open-loop response. The use of large-
value feedback and gain resistors exacerbates the problem
by further lowering the pole frequency (increasing the
possibility of oscillation.)
The EL5160, EL5161, EL5260, EL5261, and EL5360 have
been optimized with a TBD
feedback resistor. With the high
bandwidth of these amplifiers, these resistor values might
cause stability problems when combined with parasitic
capacitance, thus ground plane is not recommended around
the inverting input pin of the amplifier.
Feedback Resistor Values
The EL5160, EL5161, EL5260, EL5261, and EL5360 have
been designed and specified at a gain of +2 with R
F
approximately 806
. This value of feedback resistor gives
200MHz of -3dB bandwidth at A
V
= 2 with TBDdB of
peaking. With A
V
= -2, an R
F
of approximately TBD
gives
200MHz of bandwidth with 1dB of peaking. Since the
EL5160, EL5161, EL5260, EL5261, and EL5360 are current-
feedback amplifiers, it is also possible to change the value of
R
F
to get more bandwidth. As seen in the curve of
Frequency Response for Various R
F
and R
G
, bandwidth and
peaking can be easily modified by varying the value of the
feedback resistor.
Because the EL5160, EL5161, EL5260, EL5261, and
EL5360 are current-feedback amplifiers, their gain-
bandwidth product is not a constant for different closed-loop
gains. This feature actually allows the EL5160, EL5161,
EL5260, EL5261, and EL5360 to maintain about the same -
3dB bandwidth. As gain is increased, bandwidth decreases
slightly while stability increases. Since the loop stability is
improving with higher closed-loop gains, it becomes possible
to reduce the value of R
F
below the specified TBD
and still
retain stability, resulting in only a slight loss of bandwidth
with increased closed-loop gain.
Supply Voltage Range and Single-Supply
Operation
The EL5160, EL5161, EL5260, EL5261, and EL5360 have
been designed to operate with supply voltages having a
span of greater than 5V and less than 10V. In practical
terms, this means that they will operate on dual supplies
ranging from 2.5V to 5V. With single-supply, the EL5160,
EL5161, EL5260, EL5261, and EL5360 will operate from 5V
to 10V.
As supply voltages continue to decrease, it becomes
necessary to provide input and output voltage ranges that
can get as close as possible to the supply voltages. The
EL5160, EL5161, EL5260, EL5261, and EL5360 have an
input range which extends to within 2V of either supply. So,
for example, on +5V supplies, the EL5160, EL5161, EL5260,
EL5261, and EL5360 have an input range which spans 3V.
The output range of the EL5160, EL5161, EL5260, EL5261,
and EL5360 is also quite large, extending to within 1V of the
supply rail. On a 5V supply, the output is therefore capable
of swinging from -4V to +4V. Single-supply output range is
larger because of the increased negative swing due to the
external pull-down resistor to ground.
Video Performance
For good video performance, an amplifier is required to
maintain the same output impedance and the same
frequency response as DC levels are changed at the output.
This is especially difficult when driving a standard video load
of 150
, because of the change in output current with DC
level. Previously, good differential gain could only be
achieved by running high idle currents through the output
transistors (to reduce variations in output impedance.)
These currents were typically comparable to the entire 1mA
supply current of each EL5160, EL5161, EL5260, EL5261,
and EL5360 amplifier. Special circuitry has been
incorporated in the EL5160, EL5161, EL5260, EL5261, and
EL5360 to reduce the variation of output impedance with
current output. This results in dG and dP specifications of
0.1% and 0.1, while driving 150
at a gain of 2.
Video performance has also been measured with a 500
load at a gain of +1. Under these conditions, the EL5160 has
dG and dP specifications of 0.1% and 0.1.
Output Drive Capability
In spite of their low 1mA of supply current, the EL5160,
EL5161, EL5260, EL5261, and EL5360 are capable of
providing a minimum of 50mA of output current. With a
minimum of 50mA of output drive, the EL5160 is capable of
driving 50
loads to both rails, making it an excellent choice
for driving isolation transformers in telecommunications
applications.
EL5160, EL5161, EL5260, EL5261, EL5360
10
FN7387.8
September 8, 2005
Driving Cables and Capacitive Loads
When used as a cable driver, double termination is always
recommended for reflection-free performance. For those
applications, the back-termination series resistor will
decouple the EL5160, EL5161, EL5260, EL5261, and
EL5360 from the cable and allow extensive capacitive drive.
However, other applications may have high capacitive loads
without a back-termination resistor. In these applications, a
small series resistor (usually between 5
and 50) can be
placed in series with the output to eliminate most peaking.
The gain resistor (R
G
) can then be chosen to make up for
any gain loss which may be created by this additional
resistor at the output. In many cases it is also possible to
simply increase the value of the feedback resistor (R
F
) to
reduce the peaking.
Current Limiting
The EL5160, EL5161, EL5260, EL5261, and EL5360 have
no internal current-limiting circuitry. If the output is shorted, it
is possible to exceed the Absolute Maximum Rating for
output current or power dissipation, potentially resulting in
the destruction of the device.
Power Dissipation
With the high output drive capability of the EL5160, EL5161,
EL5260, EL5261, and EL5360, it is possible to exceed the
125C Absolute Maximum junction temperature under
certain very high load current conditions. Generally speaking
when R
L
falls below about 25
, it is important to calculate
the maximum junction temperature (TJ
MAX
) for the
application to determine if power supply voltages, load
conditions, or package type need to be modified for the
EL5160, EL5161, EL5260, EL5261, and EL5360 to remain in
the safe operating area. These parameters are calculated as
follows:
where:
T
MAX
= Maximum ambient temperature
JA
= Thermal resistance of the package
n = Number of amplifiers in the package
PD
MAX
= Maximum power dissipation of each amplifier in
the package
PD
MAX
for each amplifier can be calculated as follows:
where:
V
S
= Supply voltage
I
SMAX
= Maximum supply current of 0.75mA
V
OUTMAX
= Maximum output voltage (required)
R
L
= Load resistance
Typical Application Circuits
FIGURE 22. FAST-SETTLING PRECISION AMPLIFIER
T
JMAX
T
MAX
JA
n PD
MAX
(
)
+
=
PD
MAX
2
(
V
S
I
SMAX
)
V
S
(
V
OUTMAX
)
V
OUTMAX
R
L
----------------------------
+
=
IN+
IN-
V
S
+
V
S
-
OUT
IN+
IN-
V
S
+
V
S
-
OUT
0.1F
+5V
0.1F
-5V
500
5
5
500
500
V
OUT
V
IN
0.1F
0.1F
+5V
-5V
FIGURE 21. INVERTING 200mA OUTPUT CURRENT
DISTRIBUTION AMPLIFIER
IN+
IN-
V
S
+
V
S
-
OUT
IN+
IN-
V
S
+
V
S
-
OUT
0.1F
+5V
0.1F
-5V
0.1F
0.1F
500
500
500
500
V
OUT
V
IN
+5V
-5V
EL5160, EL5161, EL5260, EL5261, EL5360
11
FN7387.8
September 8, 2005
MSOP Package Outline Drawing
IN+
IN-
V
S
+
V
S
-
OUT
IN+
IN-
V
S
+
V
S
-
OUT
0.1F
+5V
0.1F
-5V
500
250
250
500
500
V
OUT
+
V
IN
0.1F
0.1F
+5V
-5V
V
OUT
-
IN+
IN-
V
S
+
V
S
-
OUT
IN+
IN-
V
S
+
V
S
-
OUT
0.1F
+5V
0.1F
-5V
500
500
500
V
OUT
0.1F
0.1F
+5V
-5V
500
1k
1k
240
0.1F
0.1F
RECEIVER
TRANSMITTER
FIGURE 23. DIFFERENTIAL LINE DRIVER/RECEIVER
EL5160, EL5161, EL5260, EL5261, EL5360
12
FN7387.8
September 8, 2005
QSOP Package Outline Drawing
EL5160, EL5161, EL5260, EL5261, EL5360
13
FN7387.8
September 8, 2005
SO Package Outline Drawing
EL5160, EL5161, EL5260, EL5261, EL5360
14
FN7387.8
September 8, 2005
SOT-23 Package Outline Drawing
NOTE: The package drawing shown here may not be the latest version. To check the latest revision, please refer to the Intersil website at
http://www.intersil.com/design/packages/index.asp
EL5160, EL5161, EL5260, EL5261, EL5360
15
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation's quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
FN7387.8
September 8, 2005
Small Outline Transistor Plastic Packages
(SC70-5)
D
e
1
E
E1
C
L
C
C
L
e
b
C
L
A2
A
A1
C
L
0.20 (0.008) M
0.10 (0.004) C
C
-C-
SEATING
PLANE
4
5
1
2
3
VIEW C
VIEW C
L
R1
R
4X
1
4X
1
GAUGE PLANE
L1
SEATING
L2
C
PLANE
c
BASE METAL
WITH
c1
b1
PLATING
b
P5.049
5 LEAD SMALL OUTLINE TRANSISTOR PLASTIC PACKAGE
SYMBOL
INCHES
MILLIMETERS
NOTES
MIN
MAX
MIN
MAX
A
0.031
0.043
0.80
1.10
-
A1
0.000
0.004
0.00
0.10
-
A2
0.031
0.039
0.80
1.00
-
b
0.006
0.012
0.15
0.30
-
b1
0.006
0.010
0.15
0.25
c
0.003
0.009
0.08
0.22
6
c1
0.003
0.009
0.08
0.20
6
D
0.073
0.085
1.85
2.15
3
E
0.071
0.094
1.80
2.40
-
E1
0.045
0.053
1.15
1.35
3
e
0.0256 Ref
0.65 Ref
-
e1
0.0512 Ref
1.30 Ref
-
L
0.010
0.018
0.26
0.46
4
L1
0.017 Ref.
0.420 Ref.
-
L2
0.006 BSC
0.15 BSC
0
o
8
o
0
o
8
o
-
N
5
5
5
R
0.004
-
0.10
-
R1
0.004
0.010
0.15
0.25
Rev. 2 9/03
NOTES:
1. Dimensioning and tolerances per ASME Y14.5M-1994.
2. Package conforms to EIAJ SC70 and JEDEC MO-203AA.
3. Dimensions D and E1 are exclusive of mold flash, protrusions,
or gate burrs.
4. Footlength L measured at reference to gauge plane.
5. "N" is the number of terminal positions.
6. These Dimensions apply to the flat section of the lead between
0.08mm and 0.15mm from the lead tip.
7. Controlling dimension: MILLIMETER. Converted inch dimen-
sions are for reference only.
EL5160, EL5161, EL5260, EL5261, EL5360
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