intersil EL5164, EL5165, EL5364 DATA SHEET

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EL5164, EL5165, EL5364

Data Sheet June 22, 2004

600MHz Current Feedback Amplifiers with
Enable

The EL5164, EL5165, and EL5364 are
current feedback amplifiers with a very

high bandwidth of 600MHz. This
makes these amplifiers ideal for today’s high speed video
and monitor applications.

With a supply current of just 5mA and the ability to run from
a single supply voltage from 5V to 12V, the amplifiers are
also ideal for hand held, portable or battery-powered
equipment.

The EL5164 also incorporates an enable and disable
function to reduce the supply current to 100µA typical per
amplifier. Allowing the CE

pin to float or applying a low logic

level will enable the amplifier.

The EL5165 is offered in the 5-pin SOT-23 package, EL5164
is available in the 6-pin SOT-23 and the industry-standard 8­pin SO packages, and the EL5364 in a 16-pin SO and 16-pin
QSOP packages. All operate over the industrial temperature
range of -40°C to +85°C.

Ordering Information

PAR T

NUMBER PACKAGE

EL5164IS 8-Pin SO - MDP0027

EL5164IS-T7 8-Pin SO 7” MDP0027

EL5164IS-T13 8-Pin SO 13” MDP0027

EL5164IW-T7 6-Pin SOT-23 7” (3K pcs) MDP0038

EL5164IW-T7A 6-Pin SOT-23 7” (250 pcs) MDP0038

EL5165IW-T7 5-Pin SOT-23 7” (3K pcs) MDP0038

EL5165IW-T7A 5-Pin SOT-23 7” (250 pcs) MDP0038

EL5165IC-T7 5-Pin SC-70 7” (3K pcs) P5.049

EL5165IC-T7A 5-Pin SC-70 7” (250 pcs) P5.049

EL5364IS 16-Pin SO (0.150”) - MDP0027

EL5364IS-T7 16-Pin SO (0.150”) 7” MDP0027

EL5364IS-T13 16-Pin SO (0.150”) 13” MDP0027

EL5364IU 16-Pin QSOP - MDP0040

EL5364IU-T7 16-Pin QSOP 7” MDP0040

EL5364IU-T13 16-Pin QSOP 13” MDP0040

EL5364IUZ
(See Note)

EL5364IUZ-T7
(See Note)

EL5364IUZ­T13 (See Note)

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.

16-Pin QSOP

(Pb-free)

16-Pin QSOP

(Pb-free)

16-Pin QSOP

(Pb-free)

TAPE &

REEL

- MDP0040

7” MDP0040

13” MDP0040

PKG.

DWG. #

FN7389.3

Features

• 600MHz -3dB bandwidth

• 4700V/µs slew rate

• 5mA supply current

• Single and dual supply operation, from 5V to 12V supply
span

• Fast enable/disable (EL5164 & EL5364 only)

• Available in SOT-23 packages

• Dual (EL5264 & EL5265) and triple (EL5362 & EL5363)
also available

• High speed, 1GHz product available (EL5166 & EL5167)

• 300MHz product available (EL5162 family)

• Pb-free available

Applications

• Video amplifiers

• Cable drivers

• RGB amplifiers

• Test equipment

• Instrumentation

• Current to voltage converters

1

Copyright © Intersil Americas Inc. 2002-2004. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.

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.

All other trademarks mentioned are the property of their respective owners.

Pinouts

EL5164

(8-PIN SO)

TOP VIEW

EL5164, EL5165, EL5364

EL5364

(16-PIN SO, QSOP)

TOP VIEW

1

NC

IN-

2

-

IN+

VS-

+

3

4

EL5165

(5-PIN SOT-23, SC-70)

TOP VIEW

1

OUT

VS-

IN+

2

3

-+

8

CE

7

VS+

OUT

6

NC

5

5

VS+

1

INA+

CEA

2

3

VS-

CEB

4

5

INB+

NC

6

CEC

7

8 9

INC+

16

INA-

­15

14

13

12

11

10

OUTA

VS+

OUTB

INB-

NC

OUTC

INC-

+

+

-

+

-

EL5164

(6-PIN SOT-23)

IN-

4

OUT

VS-

IN+

TOP VIEW

1

2

3

6

VS+

5CE

-+

IN-

4

2

EL5164, EL5165, EL5364

Absolute Maximum Ratings (T

Supply Voltage between V

Maximum Continuous Output Current . . . . . . . . . . . . . . . . . . . 50mA

Pin Voltages. . . . . . . . . . . . . . . . . . . . . . . . . V

+ and VS- . . . . . . . . . . . . . . . . . . . 13.2V

S

= 25°C)

A

- -0.5V to VS+ +0.5V

S

Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves

Storage Temperature. . . . . . . . . . . . . . . . . . . . . . . . -65°C to +150°C

Ambient Operating Temperature . . . . . . . . . . . . . . . .-40°C to +85°C

Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 125°C

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: TJ = TC = T

Electrical Specifications V

= +5V, VS- = -5V, RF = 750Ω for AV = 1, RF = 375Ω for AV = 2, RL = 150Ω, V

S+

= 25°C unless otherwise specified.

T

A

A

= VS+ - 1V,

ENABLE

PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT

AC PERFORMANCE

BW -3dB Bandwidth A

= +1, RL = 500Ω, RF = 510Ω 600 MHz

V

AV = +2, RL = 150Ω, RF = 412Ω 450 MHz

BW1 0.1dB Bandwidth A

SR Slew Rate V

t

S

e

N

i

- IN- Input Current Noise f = 1MHz 13 pA/√Hz

N

0.1% Settling Time V

Input Voltage Noise f = 1MHz 2.1 nV/√Hz

= +2, RL = 150Ω, RF = 412Ω 50 MHz

V

= -3V to +3V, AV = +2, RL = 100Ω

OUT

(EL5164, EL5165)

V

= -3V to +3V, AV = +2, RL = 100Ω

OUT

(EL5364)

= -2.5V to +2.5V, AV = +2,

OUT

R

= RG = 1kΩ

F

3500 4700 7000 V/µs

3000 4200 6000 V/µs

15 ns

iN+ IN+ Input Current Noise f = 1MHz 13 pA/√Hz

HD2 5MHz, 2.5V

HD3 5MHz, 2.5V

P-P

P-P

-81 dBc

-74 dBc

dG Differential Gain Error (Note 1) AV = +2 0.01 %

dP Differential Phase Error (Note 1) A

= +2 0.01 °

V

DC PERFORMANCE

V

OS

T

CVOS

Offset Voltage -5 1.5 +5 mV

Input Offset Voltage Temperature

Measured from T

MIN

to T

MAX

6µV/°C

Coefficient

R

OL

Transimpedance 1.1 3 MΩ

INPUT CHARACTERISTICS

CMIR Common Mode Input Range Guaranteed by CMRR test ±3 ±3.3 V

CMRR Common Mode Rejection Ratio V

= ±3V 506275dB

IN

-ICMR - Input Current Common Mode Rejection -1 0.1 +1 µA/V

+I

IN

-I

IN

R

IN

C

IN

+ Input Current -10 2 +10 µA

- Input Current -10 2 +10 µA

Input Resistance + Input 300 650 1200 kΩ

Input Capacitance 1pF

3

EL5164, EL5165, EL5364

Electrical Specifications V

= +5V, VS- = -5V, RF = 750Ω for AV = 1, RF = 375Ω for AV = 2, RL = 150Ω, V

S+

= 25°C unless otherwise specified. (Continued)

T

A

ENABLE

= VS+ - 1V,

PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT

OUTPUT CHARACTERISTICS

V

I

OUT

O

Output Voltage Swing RL = 150Ω to GND ±3.6 ±3.8 ±4.0 V

R

= 1kΩ to GND ±3.9 ±4.1 ±4.2 V

L

Output Current RL =10Ω to GND 100 140 190 mA

SUPPLY

I

SON

I

SOFF+

I

SOFF-

PSRR Power Supply Rejection Ratio DC, V

Supply Current - Enabled No load, V

= 0V 3.2 3.5 4.2 mA

IN

Supply Current - Disabled, per Amplifier 0 +75 µA

Supply Current - Disabled, per Amplifier No load, V

= 0V -75 -14 0 µA

IN

= ±4.75V to ±5.25V 65 79 dB

S

-IPSR - Input Current Power Supply Rejection DC, VS = ±4.75V to ±5.25V -1 0.1 +1 µA/V

ENABLE (EL5164 ONLY)

t

EN

t

DIS

I

IHCE

I

ILCE

V

IHCE

V

ILCE

Enable Time 200 ns

Disable Time 800 ns

CE Pin Input High Current CE = VS+110+25µA

CE Pin Input Low Current CE = (VS+) -5V -1 0 +1 µA

CE Input High Voltage for Power-down VS+ - 1 V

CE Input Low Voltage for Power-down VS+ - 3 V

NOTE:

1. Standard NTSC test, AC signal amplitude = 286mV

, f = 3.58MHz

P-P

4

Typical Performance Curves

EL5164, EL5165, EL5364

NORMALIZED GAIN (dB)

5
4
3
2
1
0

-1

-2

-3

-4

-5
100K

VCC, VEE = ±5V

= +2

A

V

1M 100M 1G

RF=1.2K, CL=3.5pF

RF=1.2K, CL=2.5pF

RF=1.2K, CL=0.8pF

RF=1.5K, CL=0.8pF

RF=1.8K, CL=0.8pF

10M

FREQUENCY (Hz)

RF=1.2K, CL=5pF

RF=2.2K, CL=0.8pF

FIGURE 1. FREQUENCY RESPONSE FOR VARIOUS

R

AND C

6

VCC, VEE = ±5V

5

C

4

A

3
2
1
0

-1

-2

NORMALIZED GAIN (dB)

-3

-4
100K

F

= 2.5pF

L

= +1

V

L

RF = 510Ω

RF = 681Ω

RF = 750Ω

RF = 909Ω

RF = 1201Ω

1M 100M 1G

10M

FREQUENCY (Hz)

FIGURE 3. FREQUENCY RESPONSE FOR VARIOUS R

5

VCC, VEE = ±5V

4

C

= 2.5pF

L

3

= +5

A

V

2

RF=160, RG=41

RF=300, RG=75
RF=360, RG=87
RF=397, RG=97

RF=412, RG=100

RF=560, RG=135

1M 100M 1G

FREQUENCY (Hz)

NORMALIZED GAIN (dB)

1
0

-1

-2

-3

-4

-5
100K

FIGURE 2. FREQUENCY RESPONSE FOR VARIOUS R

6

VCC = +5V

5

= -5V

V

EE

4

= 5pF

C

L

= +2

A

3

V

= 150Ω

R

L

2
1
0

-1

-2

NORMALIZED GAIN (dB)

-3

-4
100K

F

FIGURE 4. FREQUENCY RESPONSE FOR VARIOUS R

1M 100M 1G

FREQUENCY (Hz)

RF=220, RG=55

10M

F

RF = 412Ω

RF = 562Ω

RF = 681Ω

RF = 866Ω
RF = 1.2kΩ
RF = 1.5kΩ

10M

F

5

RL = 150Ω

4

R

= 422Ω

F

3

= 422Ω

R

G

2
1
0

-1

-2

-3

NORMALIZED GAIN (dB)

-4

-5
100K

VCC, V

1M

FREQUENCY (Hz)

6V

EE=

5V
4V
3V

2.5V

10M 100M

1G

FIGURE 5. FREQUENCY RESPONSE FOR VARIOUS POWER

SUPPLY VOLTAGES

5

AMPLITUDE (V)

INPUT

OUTPUT

2V/DIV

1V/DIV

ns

FIGURE 6. RISE TIME (ns)

VCC, VEE = ±5 V

= +2

A

V

= 150Ω

R

L

EL5164, EL5165, EL5364

Typical Performance Curves (Continued)

0

VCC = +5V
V

10K

= -5V

EE

= +1

A

V

V

EE

V

CC

100K

1M

FREQUENCY (Hz)

10M 1G

100M

PSRR (dB)

-10

-20

-30

-40

-50

-60

-70

-80

FIGURE 7. PSRR

0

V

= +5 V

CC

-10

-20

-30

-40

-50

-60

-70

DISTORTION (dB)

-80

-90

-100

FIGURE 9. DISTORTION vs FREQUENCY (A

= -5 V

V

EE

= +2

A

V

V

= 2V

OUT

= 100Ω

R

L

THD

0102030405060

,

P-P

THIRD HARMONIC

SECOND HARMONIC

FREQUENCY (MHz)

= +2)

V

0

V

= +5 V

CC

-10

-20

-30

-40

-50

-60

DISTORTION (dB)

-70

-80

-90

FIGURE 8. DISTORTION vs FREQUENCY (A

0.01

OUTPUT IMPEDANCE (Ω)

= -5 V

V

EE

A

= +1

V

= 2V

V

OUT

= 100Ω

R

L

THD

0 1020304050 60

P-P

SECOND HARMONIC

THIRD HARMONIC

FREQUENCY (MHz)

V

V

= +5 V

CC

= -5 V

V

EE

10

= +2

A

V

1

0.1

10K 100K

1M

FREQENCY (Hz)

10M

FIGURE 10. OUTPUT IMPEDANCE

= +1)

100M

100K

(Ω)

OL

R

1M

10K

1K

100

10

10K

VCC, VEE=

±6V
±5V

±4V
±3V

±2.5V

100K

FIGURE 11. R

1M

FREQUENCY (Hz)

FOR VARIOUS VCC, V

OL

10M 1G

6

100M

EE

VCC, VEE = ±5V

10

1

VOLTAGE NOISE (nV/√Hz)

0

100 1K

10K

FREQENCY (Hz)

100K

FIGURE 12. VOLTAGE NOISE

1M

EL5164, EL5165, EL5364

Typical Performance Curves (Continued)

100

10

CURRENT NOISE (pA)

1

100 1K

CH1

CH2

V

CC

V

EE

10K

FREQUENCY (Hz)

FIGURE 13. CURRENT NOISE

VCC = +5V
V

EE

A

= +2

V

= 150Ω

R

L

= +5V

= -5V

= -5V

100K

CH1

CH2

FIGURE 14. TURN ON DELAY

300
200
100

0

-100

-200

-300

VCC = +5V, VEE = -5V

= +2

DIFFERENTIAL GAIN (µdB)

A

V

TEST FREQUENCY, 3.58MHz

1V 0 -1V

PHASE

MAGNITUDE

VCC = +5V, VEE = -5V
A

V

R

L

DC INPUT

= +2
= 150Ω

FIGURE 15. TURN OFF DELAY FIGURE 16. DIFFERENTIAL GAIN/PHASE vs DC INPUT

VOLTAGE AT 3.58MHz

0.002

0.001

0.00

-0.001

-0.002

-0.003

-0.004

-0.005

DIFFERENTIAL PHASE (°)

-30

VCC = +5V

-100

NORMALIZED GAIN (dB)

-110

-120

-130

-40

-50

-60

-70

-80

-90

= -5V

V

EE

R

= 100Ω

L

= 860Ω

R

F

= 860Ω

R

G

= 5pF

C

L

10K 1M 10M 1G

100K

FREQUENCY (Hz)

C

B

A

100M

FIGURE 17. FREQUENCY RESPONSE FOR VARIOUS

CHANNELS

7

-30

VCC = +5V

-40

V

= -5V

EE

-50

-60

-70

-80

-90

-100

CROSSTALK (dB)

-110

-120

-130
10K

= 100Ω

R

L

= 422Ω

R

F

R

G

= 422Ω

100K

C TO B

1M 10M

FREQUENCY (Hz)

A TO B

A TO C

100M

1G

FIGURE 18. CHANNEL CROSSTALK BETWEEN CHANNELS

EL5164, EL5165, EL5364

Typical Performance Curves (Continued)

JEDEC JESD51-7 HIGH EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD

1.4

1.250W

1.2

1

909mW

0.8

0.6
435mW

0.4

POWER DISSIPATION (W)

0.2

SOT23-5/6

θJA=230°C/W

0

0 25 50 75 100 150

AMBIENT TEMPERATURE (°C)

SO16 (0.150”)

θJA=80°C/W

θJA=110

SO8

°C/W

12585

FIGURE 19. PACKAGE POWER DISSIPATION vs AMBIENT

TEMPERATURE

JEDEC JESD51-3 LOW EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD

1

0.9

0.8

0.7

0.6
625mW

0.5

0.4
391mW

0.3

0.2

POWER DISSIPATION (W)

0.1

SOT23-5/6

θJA=256°C/W

0

0 25 50 75 100 150

AMBIENT TEMPERATURE (°C)

SO8

θJA=160°C/W

12585

JEDEC JESD51-7 HIGH EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD

1.4

1.2

1

0.8

893mW

0.6

0.4

POWER DISSIPATION (W)

0.2

0

0 25 50 75 100 150

AMBIENT TEMPERATURE (°C)

QSOP16

θJA=112°C/W

12585

FIGURE 20. PACKAGE POWER DISSIPATION vs AMBIENT

TEMPERATURE

JEDEC JESD51-3 LOW EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD

1.2

1.136W

1

0.8
633mW

0.6

0.4

POWER DISSIPATION (W)

0.2

0

QSOP16

θJA=158°C/W

0 255075100 150

AMBIENT TEMPERATURE (°C)

SO16 (0.150”)

θJA=110°C/W

12585

FIGURE 21. PACKAGE POWER DISSIPATION vs AMBIENT

TEMPERATURE

8

FIGURE 22. PACKAGE POWER DISSIPATION vs AMBIENT

TEMPERATURE

Pin Descriptions

V

V

V

EL5164, EL5165, EL5364

EL5164

EL5164

(8-PIN SO)

1, 5 NC Not connected

2 4 4 IN- Inverting input

3 3 3 IN+ Non-inverting input (See circuit 1)

4 2 2 VS- Negative supply

6 1 1 OUT Output

7 6 5 VS+ Positive supply

85 CE

(6-PIN

SOT-23)

EL5165

(5-PIN

SOT-23) PIN NAME FUNCTION EQUIVALENT CIRCUIT

Chip enable, allowing the pin to float
or applying a low logic level will
enable the amplifier.

CE

Circuit 1

Circuit 2

S

OUT

V

S

+

S

IN-IN+

-

V

S

+

-

+

S

Applications Information

Product Description

The EL5164, EL5165, and EL5364 are current-feedback
operational amplifiers that offers a wide -3dB bandwidth of
600MHz and a low supply current of 5mA per amplifier. The
EL5164, EL5165, and EL5364 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 EL5164, EL5165, and
EL5364 do not have the normal gain-bandwidth product
associated with voltage-feedback operational amplifiers.
Instead, its -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 EL5164, EL5165, and EL5364 ideal choices for
many low-power/high-bandwidth applications such as
portable, handheld, or battery-powered equipment.

For varying bandwidth needs, consider the EL5166 and
EL5167 with 1GHz on a 8.5mA supply current or the EL5162
and EL5163 with 300MHz on a 8.5mA supply current.

V

-

S

Circuit 3

Versions include single, dual, and triple amp packages with
5-pin SOT-23, 16-pin QSOP, and 8-pin or 16-pin SO
outlines.

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 4.7µF
tantalum capacitor in parallel with a 0.01µF 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

9

EL5164, EL5165, EL5364

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.

Disable/Power-Down

The EL5164 amplifier can be disabled placing its output in a
high impedance state. When disabled, the amplifier supply
current is reduced to < 150µA. The EL5164 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 EL5164 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 EL5164 to be enabled by tying CE
to ground, even in 5V single supply applications. The CE
can be driven from CMOS outputs.

pin

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 large­value feedback and gain resistors exacerbates the problem
by further lowering the pole frequency (increasing the
possibility of oscillation.)

The EL5164, EL5165, and EL5364 have been optimized
with a TBDΩ 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 EL5164, EL5165, and EL5364 have been designed and
specified at a gain of +2 with R
value of feedback resistor gives 300MHz of -3dB bandwidth
at A

= 2 with 2dB of peaking. With AV = -2, an RF of 300Ω

V

gives 275MHz of bandwidth with 1dB of peaking. Since the
EL5164, EL5165, and EL5364 are current-feedback
amplifiers, it is also possible to change the value of R
more bandwidth. As seen in the curve of Frequency
Response for Various R
can be easily modified by varying the value of the feedback
resistor.

Because the EL5164, EL5165, and EL5364 are current­feedback amplifiers, their gain-bandwidth product is not a
constant for different closed-loop gains. This feature actually

F

approximately 412Ω. This

F

to get

F

and RG, bandwidth and peaking

allows the EL5164, EL5165, and EL5364 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
specified TBDΩ and still retain stability, resulting in only a
slight loss of bandwidth with increased closed-loop gain.

below the

F

Supply Voltage Range and Single-Supply
Operation

The EL5164, EL5165, and EL5364 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 EL5164, EL5165, and EL5364 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
EL5164, EL5165, and EL5364 have an input range which
extends to within 2V of either supply. So, for example, on
±5V supplies, the EL5164, EL5165, and EL5364 have an
input range which spans ±3V. The output range of the
EL5164, EL5165, and EL5364 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 150Ω, 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

5.5mA supply current of each EL5164, EL5165, and EL5364
amplifiers. Special circuitry has been incorporated in the
EL5164, EL5165, and EL5364 to reduce the variation of
output impedance with current output. This results in dG and
dP specifications of TBD% and TBD°, while driving 150Ω at
a gain of 2.

Video performance has also been measured with a 500Ω
load at a gain of +1. Under these conditions, the EL5164,
EL5165, and EL5364 have dG and dP specifications of

0.01% and 0.01°, respectively.

Output Drive Capability

In spite of their low 5.5mA of supply current, the EL5164,
EL5165, and EL5364 are capable of providing a minimum of
±75mA of output current. With a minimum of ±75mA of
output drive, the EL5164, EL5165, and EL5364 are capable
of driving 50Ω loads to both rails, making it an excellent

10

EL5164, EL5165, EL5364

choice for driving isolation transformers in
telecommunications applications.

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 EL5164, EL5165, and EL5364 from the cable
and allow extensive capacitive drive. However, other
applications may have high capacitive loads without a back­termination resistor. In these applications, a small series
resistor (usually between 5Ω and 50Ω) can be placed in
series with the output to eliminate most peaking. The gain
resistor (R

) can then be chosen to make up for any gain

G

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

) to reduce the

F

peaking.

Current Limiting

The EL5164, EL5165, and EL5364 have no internal current­limiting 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 EL5164, EL5165,
and EL5364, it is possible to exceed the 125°C Absolute
Maximum junction temperature under certain very high load
current conditions. Generally speaking when R
about 25Ω, it is important to calculate the maximum junction
temperature (T

) for the application to determine if

JMAX

power supply voltages, load conditions, or package type
need to be modified for the EL5164, EL5165, and EL5364 to
remain in the safe operating area. These parameters are
calculated as follows:

nPD

T

JMAXTMAXθJA

××()+=

MAX

falls below

L

where:

•V

= Supply voltage

S

•I

•V

•R

= Maximum supply current of 1A

SMAX

OUTMAX

L

= Maximum output voltage (required)

= Load resistance

Typical Application Circuits

+5V

IN+

IN-

-5V

375Ω 5Ω

+5V

IN+

IN-

-5V

375Ω 375Ω

V

IN

FIGURE 23. INVERTING 200mA OUTPUT CURRENT

DISTRIBUTION AMPLIFIER

375Ω 375Ω

+5V

IN+

IN-

375Ω

-5V

0.1µF

+

V

S

OUT

-

V

S

0.1µF

0.1µF

+

V

S

OUT

-

V

S

0.1µF

0.1µF

+

V

S

OUT

-

V

S

0.1µF

5Ω

V

OUT

where:

•T

• θ

= Maximum ambient temperature

MAX

= Thermal resistance of the package

JA

• n = Number of amplifiers in the package

•PD

= Maximum power dissipation of each amplifier in

MAX

the package

PD

PD

for each amplifier can be calculated as follows:

MAX

MAX

2( VSI

SMAX

) VS( V

OUTMAX

11

V

----------------------------

)

×–+××=

OUTMAX

R

L

375Ω

V

IN

+5V

IN+

IN-

-5V

0.1µF

+

V

S

OUT

-

V

S

0.1µF

V

OUT

FIGURE 24. FAST-SETTLING PRECISION AMPLIFIER

EL5164, EL5165, EL5364

V

IN

+5V

IN+

IN-

-5V

375Ω 162Ω

+5V

IN+

IN-

-5V

375Ω 375Ω

0.1µF

+

V

S

OUT

-

V

S

0.1µF

V

+

OUT

0.1µF

V

+

S

OUT

-

V

S

0.1µF

162Ω

V

OUT

-

0.1µF

240Ω

0.1µF

FIGURE 25. DIFFERENTIAL LINE DRIVER/RECEIVER

1kΩ

1kΩ

+5V

IN+

IN-

-5V

375Ω

375Ω 375Ω

375Ω

+5V

IN+

IN-

-5V

RECEIVERTRANSMITTER

0.1µF

+

V

S

OUT

-

V

S

0.1µF

0.1µF

+

V

S

OUT

-

V

S

0.1µF

V

OUT

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.

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