intersil EL8108 DATA SHEET

®

EL8108

Data Sheet June 14, 2007

Video Distribution Amplifier

The EL8108 is a dual current feedback
operational amplifier designed for

video distribution solutions. This
device features a high drive capability of 450mA while
consuming only 5mA of supply current per amplifier and
operating from a single 5V to 12V supply.

The EL8108 is available in the industry standard 8 Ld SOIC
as well as the thermally-enhanced 16 Ld QFN package. Both
are specified for operation over the full -40°C to +85°C
temperature range. The EL8108 has control pins C0 and C1
for controlling the bias and enable/disable of the outputs.

The EL8108 is ideal for driving multiple video loads while
maintaining linearity.

Ordering Information

PART

PART NUMBER

MARKING PACKAGE

EL8108IS 8108IS 8 Ld SOIC - MDP0027
EL8108IS-T7 8108IS 8 Ld SOIC 7” MDP0027
EL8108IS-T13 8108IS 8 Ld SOIC 13” MDP0027
EL8108ISZ

8108ISZ 8 Ld SOIC - MDP0027

(Note)
EL8108ISZ-T7

8108ISZ 8 Ld SOIC 7” MDP0027

(Note)
EL8108ISZ-T13

8108ISZ 8 Ld SOIC 13” MDP0027

(Note)
EL8108IL 8108IL 16 Ld 4x4 QFN - MDP0046
EL8108IL-T7 8108IL 16 Ld 4x4 QFN 7” MDP0046
EL8108IL-T13 8108IL 16 Ld 4x4 QFN 13” MDP0046

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.

TABLE 1.

150Ω 150Ω DIFF GAIN DIFF PHASE

1 0 0.03 0.01
1 1 0.03 0.01
2 1 0.05 0.02
2 2 0.06 0.03
3 2 0.08 0.03
3 3 0.11 0.03
2 0 0.04 0.01
3 0 0.05 0.02
4 0 0.07 0.02
5 0 0.08 0.03
6 0 0.10 0.03

TAPE &

REEL

PKG.

DWG. #

FN7417.1

Features

• Drives up to 450mA from a +12V supply

•20V

differential output drive into 100Ω

P-P

• -85dBc typical driver output distortion at full output at
150kHz

• -70dBc typical driver output distortion at 3.75MHz

• Low quiescent current of 5mA per amplifier

• 300MHz bandwidth

• Pb-free plus anneal available (RoHS compliant)

Applications

• Video distribution amplifiers

Pinouts

EL8108

(8 LD SOIC)

TOP VIEW

1

2

-

+

3

INA+

GND INB+

4

EL8108

(16 LD QFN)

TOP VIEW

OUTA

NC

16

15

1

NC

AMP A AMP B

2

INA-

INA+

GND

-

+

3

4

5
NC

POWER

CONTROL

LOGIC

6
NC

8

VSOUTA

7

OUTBINA-

INB-

6

-

+

5

VS+

OUTB

14

13

12

NC

INB-

11

-

+

INB+

10

C1

9

7

8
C0

VS-

1

Copyright © Intersil Americas Inc. 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.

EL8108

Absolute Maximum Ratings (T

V

+ Voltage to Ground . . . . . . . . . . . . . . . . . . . . . . -0.3V to +13.2V

S

V

+ Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND to VS+

IN

Current into any Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8mA

Continuous Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . 75mA

CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.

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

= +25°C)

A

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

Storage Temperature Range . . . . . . . . . . . . . . . . . .-60°C to +150°C

Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . .+150°C

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

A

= 12V, RF = 750Ω, RL = 100Ω connected to mid supply, T

S

= +25°C, unless otherwise specified.

A

PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT

AC PERFORMANCE

BW -3dB Bandwidth R

= 500Ω, AV = +2 200 MHz

F

RF = 500Ω, AV = +4 150 MHz

HD Total Harmonic Distortion, Differential f = 200kHz, V

f = 4MHz, V
f = 8MHz, VO = 2V
f = 16MHz, V

SR Slew Rate, Single-ended V

from -3V to +3V 600 800 1100 V/µs

OUT

O

O

= 2V

O

= 16V

= 2V

, RL = 50Ω -72 -83 dBc

P-P

, RL = 100Ω -70 dBc

P-P

, RL = 100Ω -60 dBc

P-P

, RL = 100Ω -50 dBc

P-P

DC PERFORMANCE

V
ΔV
R

OS

OS

OL

Offset Voltage -25 +25 mV
VOS Mismatch -3 +3 mV
Transimpedance V

from -4.5V to +4.5V 0.7 1.4 2.5 MΩ

OUT

INPUT CHARACTERISTICS

I

+ Non-Inverting Input Bias Current -5 5 µA

B

I

- Inverting Input Bias Current -20 5 +20 µA

B

ΔIB-I
e

N

i

N

- Mismatch -18 0 +18 µA

B

Input Noise Voltage 6nV

Hz

√

-Input Noise Current 13 pA/√Hz

OUTPUT CHARACTERISTICS

V

I

OUT

OUT

Loaded Output Swing (single ended) VS = ±6V, RL = 100Ω to GND ±4.8 ±5 V

V

= ±6V, RL = 25Ω to GND ±4.7 V

S

Output Current RL = 0Ω 450 mA

SUPPLY

V

S

(EL8108IS only) Supply Current, Maximum Setting All outputs at mid supply 11 14.3 18 mA

I

S

Supply Voltage Single supply 4.5 13 V

SUPPLY (EL8108IL ONLY)

I

+ (full power) Positive Supply Current per Amplifier All outputs at 0V, C0 = C1 = 0V 11 14.3 18 mA

S

+ (medium power) Positive Supply Current per Amplifier All outputs at 0V, C0 = 5V, C1 = 0V 7 8.9 11 mA

I

S

I

+ (low power) Positive Supply Current per Amplifier All outputs at 0V, C0 = 0V, C1 = 5V 3.7 4.5 5.5 mA

S

I

+ (power down) Positive Supply Current per Amplifier All outputs at 0V, C0 = C1 = 5V 0.1 0.5 mA

S

I

I

INH

INL

, C0 or C

, C0 or C

1

1

C0, C1 Input Current, High C0, C1 = 5V 90 125 160 µA

C0, C1 Input Current, Low C0, C1 = 0V -5 +5 µA

2

Typical Performance Curves

22

VS = ±6V, AV = 5

20

= 100Ω DIFF

R

L

18
16
14
12
10

GAIN (dB)

8
6
4
2

100K

1M

FREQUENCY (Hz)

RF = 500Ω

RF = 750Ω

RF = 1kΩ

10M 100M

FIGURE 1. DIFFERENTIAL FREQUENCY RESPONSE WITH

VARIOUS R

(FULL POWER MODE)

F

RF = 243Ω

500M

EL8108

22

VS = ±6V, AV = 5

20

= 100Ω DIFF

R

L

18
16
14
12
10

GAIN (dB)

8
6
4
2

100K

1M

RF = 500Ω

RF = 750Ω

RF = 1kΩ

10M 100M

FREQUENCY (Hz)

RF = 243Ω

500M

FIGURE 2. DIFFERENTIAL FREQUENCY RESPONSE WITH

VARIOUS RF (3/4 POWER MODE)

22

VS = ±6V, AV = 5

20
18
16
14
12
10

GAIN (dB)

8
6
4
2

100K

RL = 100Ω DIFF

RF = 500Ω

RF = 750Ω

1M

FREQUENCY (Hz)

RF = 243Ω

RF = 1kΩ

10M 100M

500M

FIGURE 3. DIFFERENTIAL FREQUENCY RESPONSE WITH

28
26
24
22
20
18
16

GAIN (dB)

14
12
10

8

100K

VARIOUS R

VS = ±6V, AV = 10
R

= 100Ω DIFF

L

(1/2 POWER MODE)

F

RF = 750Ω

1M

10M 100M

FREQUENCY (Hz)

RF = 243Ω

RF = 500Ω

RF = 1kΩ

500M

FIGURE 5. DIFFERENTIAL FREQUENCY RESPONSE WITH

VARIOUS R

(3/4 POWER MODE)

F

28

VS = ±6V, AV = 10

26

R

= 100Ω DIFF

L

24
22
20
18
16

GAIN (dB)

14
12
10

8

100K

1M

FREQUENCY (Hz)

RF = 243Ω

RF = 750Ω

RF = 1kΩ

10M 100M

RF = 500Ω

500M

FIGURE 4. DIFFERENTIAL FREQUENCY RESPONSE WITH

VARIOUS RF (FULL POWER MODE)

28

VS = ±6V, AV = 10

26

R

= 100Ω DIFF

L

24
22
20
18
16

GAIN (dB)

14
12
10

8

100K

RF = 243Ω

1M

FREQUENCY (Hz)

RF = 1kΩ

10M 100M

RF = 500Ω

RF = 750Ω

500M

FIGURE 6. DIFFERENTIAL FREQUENCY RESPONSE WITH

VARIOUS RF (1/2 POWER MODE)

3

Typical Performance Curves (Continued)

EL8108

VS=±6V

14

A

=2

V

R

=100Ω DIFF

L

12
10

8
6
4

GAIN (dB)

2
0

-2

100K 1M 10M 100M 500M

FREQUENCY (Hz)

RF=248Ω

RF=500Ω

RF=1kΩ

RF=750Ω

FIGURE 7. DIFFERENTIAL FREQUENCY RESPONSE WITH

VARIOUS R

-50
VS=±6V

A

=5

V

-55
R

=50Ω DIFF

L

R

=750

F

-60

-65

-70

HD (dB)

-75

-80

-85

123456789

F

EL8108IL
EL8108IS

3rd HD

2nd HD

V

(V)

OP-P

FIGURE 9. DISTORTION BETWEEN EL8108IL vs EL8108IS

AT 2MHz

VS=±6V

8

A

=2

V

R

=500Ω

F

6
4
2
0

-2

-4

NORMALIZED GAIN (dB)

-6

-8

100K 1M 10M 100M 500M

FREQUENCY (Hz)

RL=25Ω

RL=50Ω

FIGURE 8. FREQUENCY RESPONSE FOR VARIOUS R

-50
VS=±6V

A

=5

V

-55

R

=50Ω DIFF

L

R

=750

F

-60

-65

HD (dB)

-70

-75

-80

123456789

3rd HD

V

OP-P

2nd HD

(V)

RL=150Ω

EL8108IL
EL8108IS

LOAD

FIGURE 10. DISTORTION BETWEEN EL8108IL vs EL8108IS

AT 3MHz

-40
VS=±6V

=5

A

V

-45
R

=50Ω DIFF

L

=750

R

F

-50

-55

-60

HD (dB)

-65

-70

-75

123456789

3rd HD

V

OP-P

(V)

2nd HD

EL8108IL
EL8108IS

FIGURE 11. DISTORTION BETWEEN EL8108IL vs EL8108IS

AT 5MHz

4

-40
VS=±6V

=5

A

V

R

=50Ω DIFF

L

-45

=750

R

F

-50

HD (dB)

-55

-60

-65

123456789

V

3rd HD

OP-P

(V)

2nd HD

EL8108IL
EL8108IS

FIGURE 12. DISTORTION BETWEEN EL8108IL vs EL8108IS

AT 10MHz