intersil EL5166, EL5167 DATA SHEET

®

EL5166, EL5167

Data Sheet May 15, 2007

1.4GHz Current Feedback Amplifiers with
Enable

The EL5166 and EL5167 amplifiers are of the current
feedback variety and exhibit a very high bandwidth of

1.4GHz at A
these amplifiers ideal for today's high speed video and
monitor applications, as well as a number of RF and IF
frequency designs.

With a supply current of just 8.5mA and the ability to run
from a single supply voltage from 5V to 12V , these amplifiers
offer very high performance for little power consumption.

The EL5166 also incorporates an enable and disable
function to reduce the supply current to 13µA typical per
amplifier. Allowing the CE pin to float or applying a low logic
level will enable the amplifier.

The EL5167 is offered in the 5 Ld SOT-23 package and the
EL5166 is available in the 6 Ld SOT-23 as well as the
industry-standard 8 Ld SOIC packages. Both operate over
the industrial temperature range of -40°C to +85°C.

= +1 and 800MHz at AV = +2. This makes

V

FN7365.5

Features

• Gain-of-1 bandwidth = 1.4GHz/gain-of-2
bandwidth = 800MHz

• 6000V/µs slew rate

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

• Low noise = 1.5nV/√Hz

• 8.5mA supply current

• Fast enable/disable (EL5166 only)

• 600MHz family - (EL5164 and EL5165)

• 400MHz family - (EL5162 and EL5163)

• 200MHz family - (EL5160 and EL5161)

• Pb-free plus anneal available (RoHS compliant)

Applications

• Video amplifiers

• Cable drivers

• RGB amplifiers

• Test equipment

• Instrumentation

• Current to voltage converters

Pinouts

EL5166

(8 LD SOIC)

TOP VIEW

1

1

NC

IN-

2

2

­+

3

3

4

4

6

VS+

5

CE

IN-

4

OUT

VS-

IN+

EL5166

(6 LD SOT-23)

TOP VIEW

1

2

3

-+

IN+

VS-

8

8

CE

7

7

VS+

OUT

6

6

NC

5

5

EL5167

(5 LD SOT-23, SC-70)

TOP VIEW

1

OUT

VS-

IN+

2

3

-

+

5

VS+

IN-

4

1

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, 2007. All Rights Reserved

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

EL5166, EL5167

Ordering Information

PART NUMBER PART MARKING TAPE & REEL PACKAGE PKG. DWG. #

EL5166IS 5166IS - 8 Ld SOIC (150 mil) MDP0027
EL5166IS-T7 5166IS 7” 8 Ld SOIC (150 mil) MDP0027
EL5166IS-T13 5166IS 13” 8 Ld SOIC (150 mil) MDP0027
EL5166ISZ (Note) 5166ISZ - 8 Ld SOIC (150 mil) (Pb-free) MDP0027
EL5166ISZ-T7 (Note) 5166ISZ 7” 8 Ld SOIC (150 mil) (Pb-free) MDP0027
EL5166ISZ-T13 (Note) 5166ISZ 13” 8 Ld SOIC (150 mil) (Pb-free) MDP0027
EL5166IW-T7 h 7” (3k pcs) 6 Ld SOT-23 MDP0038
EL5166IW-T7A h 7” (250 pcs) 6 Ld SOT-23 MDP0038
EL5166IWZ-T7 (Note) BAPA 7” (3k pcs) 6 Ld SOT-23 (Pb-free) MDP0038
EL5166IWZ-T7A (Note) BAPA 7” (250 pcs) 6 Ld SOT-23 (Pb-free) MDP0038
EL5167IC-T7 G 7” (3k pcs) 5 Ld SC-70 (1.25mm) P5.049
EL5167IC-T7A G 7” (250 pcs) 5 Ld SC-70 (1.25mm) P5.049
EL5167ICZ-T7 (Note) BFA 7” (3k pcs) 5 Ld SC-70 (1.25mm) (Pb-free) P5.049
EL5167ICZ-T7A (Note) BFA 7” (250 pcs) 5 Ld SC-70 (1.25mm) (Pb-free) P5.049
EL5167IW-T7 a 7” (3k pcs) 5 Ld SOT-23 MDP0038
EL5167IW-T7A a 7” (250 pcs) 5 Ld SOT-23 MDP0038
EL5167IWZ-T7 (Note) BARA 7” (3k pcs) 5 Ld SOT-23 (Pb-free) MDP0038
EL5167IWZ-T7A (Note) BARA 7” (250 pcs) 5 Ld SOT-23 (Pb-free) MDP0038

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.

2

FN7365.5

May 15, 2007

EL5166, EL5167

Absolute Maximum Ratings (T

Supply Voltage between VS+ and VS-. . . . . . . . . . . . . . . . . . . 12.6V

Slewrate between V

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

I

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±200mA

OUT

I into V

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

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

+, VIN-, Enable Pins . . . . . . . . . . . . . . . . . . . . . . . . . ±4mA

IN

+ and VS-. . . . . . . . . . . . . . . . . . . . . . . . 1V/µs

S

Electrical Specifications V

= +25°C) Thermal Information

A

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

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

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

Die Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . .+125°C

Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below

- -0.5V to VS+ +0.5V

S

A

+ = +5V, VS- = -5V, RF = 392Ω for AV = 1, RF = 250Ω for AV = 2, RL = 150Ω, TA = +25°C

S

http://www.intersil.com/pbfree/Pb-FreeReflow.asp

Unless Otherwise Specified.

PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT

AC PERFORMANCE

BW -3dB Bandwidth A

= +1 1400 MHz

V

A

= +2 800 MHz

V

BW1 0.1dB Bandwidth AV = +2 100 MHz
SR Slew Rate V
t

S

e

N

0.1% Settling Time V
Input Voltage Noise 1.7 nV/√Hz

= -2.5V to +2.5V, AV = [phone] V/µs

O

= -2.5V to +2.5V, AV = -1 8 ns

OUT

iN- IN- Input Current Noise 19 pA/√Hz
i

+ IN+ Input Current Noise 50 pA/√Hz

N

dG Differential Gain Error (Note 1) A

= +2 0.01 %

V

dP Differential Phase Error (Note 1) AV = +2 0.03 °

DC PERFORMANCE

V

OS

TCV

R

OL

OS

Offset Voltage -5 -0.5 5 mV
Input Offset Voltage Temperature

Coefficient

Measured from T

MIN

to T

MAX

3.52 µV/°C

Transimpedance 0.5 1.1 2.5 MΩ

INPUT CHARACTERISTICS

CMIR Common Mode Input Range

±3 ±3.3 V

(guaranteed by CMRR test)

CMRR Common Mode Rejection Ratio 52 57 66 dB

-ICMR - Input Current Common Mode Rejection -1 0.7 1 µA/V
+I

IN

-I

IN

R

IN

C

IN

+ Input Current -25 0.7 25 µA

- Input Current -25 8.5 25 µA
Input Resistance 50 130 250 kΩ
Input Capacitance 1.5 pF

OUTPUT CHARACTERISTICS

V

I

OUT

O

Output Voltage Swing RL = 150Ω to GND ±3.6 ±3.8 ±4.1 V

R

= 1kΩ to GND ±3.8 ±4.0 ±4.2 V

L

Output Current RL = 10Ω to GND ±110 ±160 ±200 mA

3

FN7365.5

May 15, 2007

EL5166, EL5167

Electrical Specifications V

+ = +5V, VS- = -5V, RF = 392Ω for AV = 1, RF = 250Ω for AV = 2, RL = 150Ω, TA = +25°C

S

Unless Otherwise Specified. (Continued)

PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT

SUPPLY

I

SON

I

SOFF+

I

SOFF-

PSRR Power Supply Rejection Ratio DC, V

-IPSR - Input Current Power Supply Rejection DC, V

Supply Current - Enabled No load, V
Supply Current - Disabled No load, V
Supply Current - Disabled No load, V

= ±4.75V to ±5.25V 70 50 dB

S

= ±4.75V to ±5.25V -0.5 0.2 1 µA/V

S

= 0V 7.5 8.5 9.3 mA

IN

= 0V 1 4 25 µA

IN

= 0V -25 -14 -1 µA

IN

ENABLE (EL5166 ONLY)

t

EN

t

DIS

I

IHCE

I

ILCE

V

IHCE

V

ILCE

Enable Time 170 ns
Disable Time 1.25 µs
CE Pin Input High Current CE = VS+0-1µA
CE Pin Input Low Current CE = VS- 1 13 25 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.

Typical Performance Curves

5

VCC=5V

4

=-5V

V

EE

R

=150Ω

L

NORMALIZED MAGNITUDE (dB)

3
2
1
0

-1

-2

-3

-4

-5
100K

1M

FREQUENCY (Hz)

RF=511

10M

RF=392

RF=662

RF=608

RF=698

RF=806

RF=900

FIGURE 1. FREQUENCY RESPONSE AS THE FUNCTION OF

R

F

100M

RF=368

RF=1K

1G

4
3
2
1
0

-1

-2

-3

VCC=5V

=-5V

V

-4

EE

R

=150Ω

L

-5
=392Ω

R

NORMALIZED MAGNITUDE (dB)

F

-6

100K 10M 100M 1G

1M

FREQUENCY (Hz)

RG=392 RG=186

RG=93

RG=43

FIGURE 2. FREQUENCY RESPONSE AS THE FUNCTION OF

THE GAIN

4

FN7365.5

May 15, 2007

Typical Performance Curves (Continued)

EL5166, EL5167

5
4
3
2
1
0

-1

-2

-3

-4

NORMALIZED MAGNITUDE (dB)

-5
100K 1M 10M 100M 1G

FREQUENCY (Hz)

FIGURE 3. FREQENCY RESPONSE vs C

4

VCC, VEE=5V

3
2
1
0

-1

-2

-3

-4

NORMALIZED GAIN (dB)

-5

-6
1M 100M 1G

10M

FREQUENCY (Hz)

C=4.7p

C=2.5p
C=1.5p

C=1p

C=0p

RF=220

=220

R

G

RF=220
R

G

IN

=100

FIGURE 5. INVERTING FREQUENCY RESPONSE FOR GAIN

OF 1 AND 2

5

VCC=+V

VCC=+5V

4

=-5V

V

=-5V

V

EE

NORMALIZED GAIN (dB)

3
2
1
0

-1

-2

-3

-4

-5

EE

RL=150W

=150Ω

R

L

R

F=RG

100K

=392Ω

1M

C=4.7p

C=2.5p

C=1.5p

C=1p

C=0

10M

FREQUENCY (Hz)

100M

1G

FIGURE 4. NON-INVERTING FREQUENCY RESPONSE FOR

VARIOUS C

0.5V/DIV

- (6 LD SOT-23)

IN

2ns/DIV

FIGURE 6. RISE AND FALL TIME (6 LD SOT-23)

4

RL=150Ω

3

=300Ω

R

F

2

R

=300Ω

G

1
0

-1

-2

-3

-4

NORMALIZED GAIN (dB)

-5

-6
100K 1M 10M 100M 1G

FREQUENCY (Hz)

5.0V

2.5V

6.0V

3.0V

FIGURE 7. FREQUENCY RESPONSE AS THE FUNCTION OF

THE POWER SUPPLY VOLTAGE

5

4

RL=150Ω

3

=220Ω

R

F

2

R

=220Ω

G

1
0

-1

-2

-3

-4

NORMALIZED GAIN (dB)

-5

-6
1M 100M 1K

10M

FREQUENCY (Hz)

3.5V

6.0V

2.5V

5.0V

FIGURE 8. INVERTING AMPLIFIER, FREQUENCY

RESPONSE AS THE FUNCTION OF V
GAIN - 1

, VEE

CC

FN7365.5

May 15, 2007

Typical Performance Curves (Continued)

2.5V

5.0V

100K

10K

2.5V

5.0V

1K

MAGNITUDE (dB)

100

100K

6.0V

1M

10M

FREQUENCY (Hz)

VCC, VEE=2.5V

100M

1G

0

-90

-180

-270

PHASE (°)

FIGURE 9. TRANSIMPEDANCE MAGNITUDE AND PHASE AS

THE FUNCTION OF THE FREQUENCY

0

VCC=5V

=-5V

V

10

EE

=150Ω

R

L

20

R

=402Ω

F

=402Ω

R

G

30

) (dB)

CC

40
50

PSRR (V

60
70
80

100 10K 1M 10M 100M

1K 100K

FREQUENCY (Hz)

VCC, VEE=5V
GAIN=2

10

1

(Ω)

OUT

Z

100m

10m

10K

100K

FREQUENCY (Hz)

1M

10M

FIGURE 10. CLOSED LOOP OUTPUT IMPEDANCE vs

FREQUENCY (6 LD SOT - 23)

0

VCC=5V

=-5V

V

10

EE

=150Ω

R

L

20

=402Ω

R

F

R

=402Ω

G

30

) (dB)

EE

40
50

PSRR (V

60
70
80

100 10K 1M 10M 100M

1K 100K

FREQUENCY (Hz)

100M

FIGURE 11. PSRR +5V

0

RF=RG=250Ω

-10

-20

-30

-40

1K

2.5V

6.0V

10K

100K

FREQUENCY (Hz)

5.0V

1M 10M

3.5V

100M

300M

-50

CMRR (dB)

-60

-70

-80

FIGURE 13. COMMON MODE REJECTION AS THE FUNCTION

OF THE FREQUENCY AND POWER SUPPLY
VOLTAGE

6

FIGURE 12. PSRR -5V

FIGURE 14. LARGE SIGNAL RESPONSE

FN7365.5

May 15, 2007

Typical Performance Curves (Continued)

EL5166, EL5167

2

1.5

(V)

1

OUTP-P

V

0.5

0

100

FIGURE 15. T

-74

-76

-78

-80

-82

DISTORTION (dB)

-84

-86

VCC, V

EE =

±6V

±5V

±3V

±2.5V

300200

400 500 600 700 800 900 1000

FREQUENCY (Hz)

vs FREQUENCY AND VCC, V

OUT

f=1 M H z , RL=150Ω,

=2, V

A

V

OP-P

THD

HD2

HD3

5678 10 12

TOTAL SUPPLY VOLTAGE (V)

119

=2V

EE

-50

-55

-60

-65

-70

-75

DISTORTION (dB)

-80

-85
1 6 11 16 26 36

SECOND
HARMONIC

FREQUENCY (MHz)

VCC, VEE=5V,

=150Ω, AV=2

R

L

THD

THIRD
HARMONIC

3121

FIGURE 16. DISTORTION vs FREQUENCY

10

0

-10

-20

-30

-40

-50

-60

DISTORTION (dB)

-70

-80

-90
5678 10 12

HD3

TOTAL SUPPLY VOLTAGE (V)

f=5MHz, RL=150Ω,

=2, VO=2V

A

V

THD

119

P-P

HD2

FIGURE 17. HARMONIC DISTORTION vs SUPPLY VOLTAGE

-50

-55

-60

-65

-70

-75

DISTORTION (dB)

-80

-85

-90
5678 10 12

TOTAL SUPPLY VOLTAGE (V)

SECOND

HARMONIC

f=10MHz,
R

L

A

V

V

O

THIRD

HARMONIC

=150Ω,
=2
=2V

THD

119

P-P

FIGURE 19. DISTORTION vs POWER SUPPLY VOLTAGE

7

FIGURE 18. HARMONIC DISTORTION vs SUPPLY VOLTAGE

-50

-55

-60

-65

-70

DISTORTION (dB)

-75

-80

THIRD

HARMONIC

5678 10 12

TOTAL SUPPLY VOLTAGE (V)

THD

SECOND

HARMONIC

f=20MHz,
R

=150Ω,

L

=2

A

V

=2V

V

O

P-P

119

FIGURE 20. DISTORTION vs POWER SUPPLY VOLTAGE (EL5166)

FN7365.5

May 15, 2007

Typical Performance Curves (Continued)

EL5166, EL5167

FIGURE 21. TURN ON TIME (EL5166)

8.5

8.4

8.3

8.2

8.1

8

7.9

7.8

7.7

7.6

SUPPLY CURRENT (mA)

7.5

7.4

2.5 3 3.5 4 5 6
SUPPLY VOLTAGE (V)

I

S

IS-

5.54.5

FIGURE 23. SUPPLY CURRENT vs SUPPLY VOLTAGE (EL5166)

JEDEC JESD51-3 LOW EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD

1

0.9

0.8

0.7

625mW

0.6

0.5
391mW

0.4

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)

FIGURE 22. TURN OFF TIME (EL5166)

JEDEC JESD51-7 HIGH EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD

1.4

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)

SO8

θJA=110°C/W

FIGURE 24. PACKAGE POWER DISSIP A TION vs AMBIENT

TEMPERATURE

SO8

θJA=160°C/W

12585

12585

FIGURE 25. PACKAGE POWER DISSIPATION vs AMBIENT TEMPERATURE

8

FN7365.5

May 15, 2007

Pin Descriptions

V

V

EL5166, EL5167

8 LD SOIC 6 LD SOT-23 5 LD SOT-23

NAME FUNCTION EQUIVALENT CIRCUIT

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

PIN

85 CE

Chip enable

CIRCUIT 1

CIRCUIT 2

VS+

OUT

V

S

+

S

IN-IN+

-

V

S

-

+

S

CE

-

V

S

CIRCUIT 3

9

FN7365.5

May 15, 2007

EL5166, EL5167

Applications Information

Product Description

The EL5166 and EL5167 are current-feedback operational
amplifiers that offers a wide -3dB bandwidth of 1.4GHz and a
low supply current of 8.5mA per amplifier. The EL5166 and
EL5167 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 current­feedback topology, the EL5166 and EL5167 do not have the
normal gain-bandwidth product associated with voltage­feedback operational amplifiers. Instead, their -3dB
bandwidth remains relatively constant as closed-loop gain is
increased. This combination of high bandwidth and low
power, together with aggressive pricing make the EL5166
and EL5167 ideal choices for many low-power/high­bandwidth 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 4.7µF
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
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 EL5166 amplifier can be disabled placing its output in a
high impedance state. When disabled, the amplifier supply
current is reduced to 13µA. The EL5166 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 EL5166 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 EL5166 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 large
value feedback and gain resistors exacerbates the problem
by further lowering the pole frequency (increasing the
possibility of oscillation).

The EL5166 and EL5167 frequency responses are
optimized with the resistor values in Figure 3. 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 EL5166 and EL5167 have been designed and specified
at a gain of +2 with R
feedback resistor gives 800MHz of -3dB bandwidth at A
with about 0.5dB of peaking. Since the EL5166 and EL5167
are current-feedback amplifiers, it is also possible to change
the value of R
of Frequency Response for Various R
and peaking can be easily modified by varying the value of
the feedback resistor.

Because the EL5166 and EL5167 are current-feedback
amplifiers, their gain-bandwidth product is not a constant for
different closed-loop gains. This feature actually allows the
EL5166 and EL5167 to maintain reasonable constant -3dB
bandwidth for different gains. 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 250Ω and still retain stability, resulting in only a
slight loss of bandwidth with increased closed-loop gain.

to get more bandwidth. As seen in the curve

F

approximately 392Ω. This value of

F

and RG, bandwidth

F

below the

F

= 2

V

Supply Voltage Range and Single-Supply
Operation

The EL5166 and EL5167 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 the EL5166
and EL5167 will operate on dual supplies ranging from
±2.5V to ±5V . With single-supply , they 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
EL5166 and EL5167 have an input range which extends to
within 1.8V of either supply. So, for example, on ±5V
supplies, the EL5166 and EL5167 have an input range

10

FN7365.5

May 15, 2007

EL5166, EL5167

which spans ±3.2V. The output range of the EL5166 and
EL5167 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.

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 8.5mA supply current of each
EL5166 and EL5167 amplifier. Special circuitry has been
incorporated in the EL5166 and EL5167 to reduce the
variation of output impedance with current output. This
results in dG and dP specifications of 0.01% and 0.03°,
while driving 150Ω at a gain of 2.

Output Drive Capability

In spite of their low 8.5mA of supply current, the EL5166 and
EL5167 are capable of providing a minimum of ±110mA of
output current. With so much output drive, the EL5166 and
EL5167 are capable of driving 50Ω loads to both rails,
making them an excellent choice for driving isolation
transformers in telecommunications applications.

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 EL5166 and EL5167 to remain in
the safe operating area. These parameters are calculated as
follows:

T

JMAXTMAXθJA

nPD

××()+=

MAX

where:

T

= Maximum ambient temperature

MAX

θJA = Thermal resistance of the package

n = Number of amplifiers in the package
PD

= Maximum power dissipa ti o n of each amplifier in

MAX

the package

PD

for each amplifier can be calculated as follows:

MAX

PD

MAX

2( VSI

SMAX

) VS( V

OUTMAX

)

V

OUTMAX

----------------------------×–+××=

R

L

where:

V

= Supply voltage

S

I

= Maximum supply current of 1A

SMAX

V

OUTMAX

= Maximum output voltage (required)

RL = Load resistance

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 EL5166 and EL5167 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 5Ω and 50Ω) can be placed in series with the
output to eliminate most peaking. The gain resistor (R

) can

G

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

) to reduce the peaking.

F

Current Limiting

The EL5166 and EL5167 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 EL5166 and
EL5167, it is possible to exceed the 125°C Absolute
Maximum junction temperature under certain very high load
current conditions. Generally speaking when R

falls below

L

11

FN7365.5

May 15, 2007

Typical Application Circuits

0.1µF

+5V

IN+

IN-

-5V

+5V

IN+

IN-

-5V

250Ω 250Ω

V

IN

+

V

S

V

-

S

0.1µF

OUT

EL5166

250Ω 5Ω

0.1µF

+

V

S

V

-

S

0.1µF

OUT

EL5166

5Ω

EL5166, EL5167

V

OUT

250Ω 250Ω

IN+

IN-

250Ω

250Ω

V

IN

IN+

IN-

+5V

-5V

+5V

-5V

EL5166

EL5166

V

V

V

V

0.1µF

+

S

-

S

0.1µF

0.1µF

+

S

-

S

0.1µF

OUT

OUT

V

OUT

FIGURE 26. INVERTING 200mA OUTPUT CURRENT

DISTRIBUTION AMPLIFIER

0.1µF

+5V

250Ω 250Ω

V

IN

IN+

IN-

-5V

+5V

IN+

IN-

-5V

+

V

S

V

-

S

0.1µF

OUT

EL5166

250Ω 120Ω

0.1µF

+

V

S

V

-

S

0.1µF

OUT

EL5166

120Ω

V

V

OUT

OUT

FIGURE 27. FAST-SETTLING PRECISION AMPLIFIER

0.1µF

+5V

IN+

IN-

0.1µF

+

-5V

250Ω

1kΩ

240Ω

+5V

0.1µF

­1kΩ

IN+

IN-

-5V

250Ω 250Ω

EL5166

250Ω

EL5166

RECEIVERTRANSMITTER

V

V

V

V

+

S

-

S

0.1µF

0.1µF

+

S

-

S

0.1µF

OUT

OUT

V

OUT

12

FIGURE 28. DIFFERENTIAL LINE DRIVER/RECEIVER

FN7365.5

May 15, 2007

Small Outline Package Family (SO)

A

D

NN

(N/2)+1

EL5166, EL5167

h X 45°

PIN #1

E

C

SEATING
PLANE

0.004 C

E1

B

0.010 BM CA

I.D. MARK

1

e

0.010 BM CA

(N/2)

c

SEE DETAIL “X”

L1

H

A2

GAUGE
PLANE

A1

b

DETAIL X

L

4° ±4°

MDP0027

SMALL OUTLINE PACKAGE FAMILY (SO)

INCHES

SO16

SYMBOL

(0.150”)

A 0.068 0.068 0.068 0.104 0.104 0.104 0.104 MAX -

A1 0.006 0.006 0.006 0.007 0.007 0.007 0.007 ±0.003 ­A2 0.057 0.057 0.057 0.092 0.092 0.092 0.092 ±0.002 -

b 0.017 0.017 0.017 0.017 0.017 0.017 0.017 ±0.003 ­c 0.009 0.009 0.009 0.011 0.011 0.011 0.011 ±0.001 ­D 0.193 0.341 0.390 0.406 0.504 0.606 0.704 ±0.004 1, 3
E 0.236 0.236 0.236 0.406 0.406 0.406 0.406 ±0.008 -

E1 0.154 0.154 0.154 0.295 0.295 0.295 0.295 ±0.004 2, 3

e 0.050 0.050 0.050 0.050 0.050 0.050 0.050 Basic ­L 0.025 0.025 0.025 0.030 0.030 0.030 0.030 ±0.009 -

L1 0.041 0.041 0.041 0.056 0.056 0.056 0.056 Basic -

h 0.013 0.013 0.013 0.020 0.020 0.020 0.020 Reference -

N 8 14 16 16 20 24 28 Reference -

NOTES:

1. Plastic or metal protrusions of 0.006” maximum per side are not included.

2. Plastic interlead protrusions of 0.010” maximum per side are not included.

3. Dimensions “D” and “E1” are measured at Datum Plane “H”.

4. Dimensioning and tolerancing per ASME Y14.5M-1994

SO16 (0.300”)

(SOL-16)

SO20

(SOL-20)

SO24

(SOL-24)

SO28

(SOL-28)

TOLERANCE NOTESSO-8 SO-14

A

0.010

Rev. M 2/07

13

FN7365.5

May 15, 2007

SOT-23 Package Family

EL5166, EL5167

2 3

0.15 DC

2X

C

SEATING
PLANE

E1

5

0.15 A-BC

2X

0.10 C

NX

(L1)

e1

A

6

N

4

D

MDP0038

SOT-23 PACKAGE FAMILY

SYMBOL

MILLIMETERS

TOLERANCESOT23-5 SOT23-6

A 1.45 1.45 MAX

A1 0.10 0.10 ±0.05

E

A2 1.14 1.14 ±0.15

b 0.40 0.40 ±0.05

321

e

0.20

B

b

NX

M

0.20 C

2X

DC A-B

c 0.14 0.14 ±0.06

D 2.90 2.90 Basic

E 2.80 2.80 Basic

E1 1.60 1.60 Basic

e 0.95 0.95 Basic

e1 1.90 1.90 Basic

L 0.45 0.45 ±0.10

L1 0.60 0.60 Reference

1 3

D

N 5 6 Reference

Rev. F 2/07

NOTES:

A2

1. Plastic or metal protrusions of 0.25mm maximum per side are not
included.

2. Plastic interlead protrusions of 0.25mm maximum per side are not

A1

included.

3. This dimension is measured at Datum Plane “H”.

4. Dimensioning and tolerancing per ASME Y14.5M-1994.

5. Index area - Pin #1 I.D. will be located within the indicated zone
(SOT23-6 only).

H

6. SOT23-5 version has no center lead (shown as a dashed line).

A

c

L

14

0°

GAUGE
PLANE

+3°

-0°

0.25

FN7365.5

May 15, 2007

EL5166, EL5167

Small Outline Transistor Plastic Packages (SC70-5)

D

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
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15

FN7365.5

May 15, 2007