intersil EL5176 DATA SHEET

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EL5176

Data Sheet August 3, 2005

250MHz Differential Twisted-Pair Driver

The EL5176 is a high bandwidth amplifier with an output in
differential form. It is primarily targeted for applications such
as driving twisted-pair lines or any application where
common mode injection is likely to occur. The input signal
can be in either single-ended or differential form but the
output is always in differential form.

On the EL5176, two feedback inputs provide the user with
the ability to set the device gain (stable at minimum gain of
one).

The output common mode level is set by the reference pin
(REF), which has a -3dB bandwidth of over 50MHz.
Generally, this pin is grounded but it can be tied to any
voltage reference.

Both outputs (OUT+, OUT-) are short circuit protected to
withstand temporary overload condition.

The EL5176 is available in the 10-pin MSOP package and is
specified for operation over the full -40°C to +85°C
temperature range.

See also EL5171 (EL5176 in 8-pin MSOP.)

Ordering Information

PART

NUMBER PACKAGE TAPE & REEL PKG. DWG. #

EL5176IY 10-Pin MSOP - MDP0043

EL5176IY-T7 10-Pin MSOP 7” MDP0043

EL5176IY-T13 10-Pin MSOP 13” MDP0043

EL5176IYZ
(See Note)

EL5176IYZ-T7
(See Note)

EL5176IYZ-T13
(See Note)

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.

10-Pin MSOP

(Pb-free)

10-Pin MSOP

(Pb-free)

10-Pin MSOP

(Pb-free)

- MDP0043

7” MDP0043

13” MDP0043

FN7343.2

Features

• Fully differential inputs, outputs, and feedback

• Differential input range ±2.3V

• 250MHz 3dB bandwidth

• 800V/µs slew rate

• Low distortion at 20MHz

• Single 5V or dual ±5V supplies

• 40mA maximum output current

• Low power - 8mA typical supply current

• Pb-Free plus anneal available (RoHS compliant)

Applications

• Twisted-pair drivers

• Differential line drivers

• VGA over twisted-pair

• ADSL/HDSL drivers

• Single ended to differential amplification

• Transmission of analog signals in a noisy environment

Pinout

EL5176

(10-PIN MSOP)

TOP VIEW

1

FBP

IN+

2

REF

IN-

+

3

-

4

5 6FBN OUT-

10

9

8

7

OUT+

VS-

VS+

EN

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.

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

Copyright Intersil Americas Inc. 2003-2005. All Rights Reserved

EL5176

Absolute Maximum Ratings (T

Supply Voltage (V

Maximum Output Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . ±60mA

+ to VS-) . . . . . . . . . . . . . . . . . . . . . . . . . . . .12V

S

= 25°C)

A

Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +135°C

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

Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°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. Typ values are for information purposes only. Unless otherwise noted, all tests are
at the specified temperature and are pulsed tests, therefore: T

Electrical Specifications V

+ = +5V, VS- = -5V, TA = 25°C, VIN = 0V, RLD = 1kΩ, RF = 0, RG = OPEN, CLD = 2.7pF, Unless Otherwise

S

= TC = T

J

A

Specified

PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT

AC PERFORMANCE

BW -3dB Bandwidth A

BW ±0.1dB Bandwidth A

SR Slew Rate - Rise V

Slew Rate - Fall V

T

T

STL

OVR

Settling Time to 0.1% V

Output Overdrive Recovery Time 20 ns

= 1, CLD = 2.7pF 250 MHz

V

A

= 2, RF = 500, CLD = 2.7pF 60 MHz

V

= 10, RF = 500, CLD = 2.7pF 10 MHz

A

V

= 1, CLD = 2.7pF 50 MHz

V

OUT

OUT

OUT

= 3V

= 3V

= 2V

, 20% to 80% 600 800 1000 V/µs

P-P

, 20% to 80% 540 700 1000 V/µs

P-P

P-P

10 ns

GBWP Gain Bandwidth Product 100 MHz

BW (-3dB) V

V

REF

V

SR+ V

REF

V

SR- V

REF

V

N

I

N

HD2 Second Harmonic Distortion V

HD3 Third Harmonic Distortion V

dG Differential Gain at 3.58MHz R
dθ Differential Phase at 3.58MHz R

-3dB Bandwidth AV =1, CLD = 2.7pF 50 MHz

REF

Slew Rate - Rise V

REF

Slew Rate - Fall V

REF

OUT

OUT

= 2V

= 2V

, 20% to 80% 90 V/µs

P-P

, 20% to 80% 50 V/µs

P-P

Input Voltage Noise at 10kHz 26 nV/√Hz

Input Current Noise at 10kHz 2 pA/√Hz

OUT

V

OUT

OUT

V

OUT

= 300Ω, A

L

= 300Ω, A

L

= 2V

= 2V

= 2V

= 2V

, 5MHz -94 dBc

P-P

, 20MHz -94 dBc

P-P

, 5MHz -77 dBc

P-P

, 20MHz -75 dBc

P-P

= 2 0.1 %

V

= 2 0.5 °

V

INPUT CHARACTERISTICS

V

I

IN

I

REF

R

C

OS

IN

IN

Input Referred Offset Voltage ±1.5 ±25 mV

Input Bias Current (VIN+, VIN-) -14 -6 -3 µA

Input Bias Current (V

)0.51.34µA

REF

Differential Input Resistance 300 kΩ

Differential Input Capacitance 1pF

DMIR Differential Mode Input Range ±2.1 ±2.3 ±2.5 V

CMIR+ Common Mode Positive Input Range at V

CMIR- Common Mode Negative Input Range at V

V

+ Positive Reference Input Voltage Range VIN+ = VIN- = 0V 3.5 3.8 V

REFIN

V

- Negative Reference Input Voltage Range VIN+ = VIN- = 0V -3.3 -3 V

REFIN

V

REFOS

Output Offset Relative to V

±60 ±100 mV

REF

+, VIN-3.13.4V

IN

+, VIN- -4.5 -4.2 V

IN

2

FN7343.2

August 3, 2005

EL5176

Electrical Specifications V

+ = +5V, VS- = -5V, TA = 25°C, VIN = 0V, RLD = 1kΩ, RF = 0, RG = OPEN, CLD = 2.7pF, Unless Otherwise

S

Specified (Continued)

PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT

CMRR Input Common Mode Rejection Ratio V

Gain Gain Accuracy V

= ±2.5V 65 82 dB

IN

= 1 0.981 0.996 1.011 V

IN

OUTPUT CHARACTERISTICS

V

OUT

Positive Output Swing RL = 500Ω to GND 3.6 3.9 V

Negative Output Swing -3.8 -3.5 V

I

(Max) Maximum Source Output Current RL = 10Ω,

OUT

Maximum Sink Output Current -40 -30 mA

R

OUT

Output Impedance 130 mΩ

V

+ = 1.1V,

IN

V

- = -1.1V,

IN

V

REF

= 0

35 50 mA

SUPPLY

V

SUPPLY

I

S(ON)

I

+ Positive Power Supply Current - Disabled EN pin tied to 4.8V 80 120 µA

S(OFF)

I

- Negative Power Supply Current - Disabled -200 -120 µA

S(OFF)

PSRR Power Supply Rejection Ratio V

Supply Operating Range VS+ to VS-4.7511V

Power Supply Current - Per Channel 6.8 7.5 8.2 mA

from ±4.5V to ±5.5V 70 84 dB

S

ENABLE

t

EN

t

DS

V

IH

V

IL

Enable Time 215 ns

Disable Time 0.95 µs

EN Pin Voltage for Power-Up VS+ -

1.5

EN Pin Voltage for Shut-Down VS+ -

0.5

I

IH-EN

I

IL-EN

EN Pin Input Current High At VEN = 5V 40 60 µA

EN Pin Input Current Low At VEN = 0V -6 -2.5 µA

V

V

Pin Descriptions

PIN NUMBER PIN NAME PIN DESCRIPTION

1 FBP Non-inverting feedback input; resistor R

2 IN+ Non-inverting input

3 REF Output common-mode control; the common-mode voltage of V

4 IN- Inverting input

5 FBN Inverting feedback input; resistor R

6 OUT- Inverting output

7EN

Enabled when this pin is floating or the applied voltage ≤ VS+ -1.5

8 VS+ Positive supply

9 VS- Negative supply

10 OUT+ Non-inverting output

3

must be connected from this pin to V

F1

must be connected from this pin to V

F2

OUT

will follow the voltage on this pin

OUT

OUT

FN7343.2

August 3, 2005

Connection Diagram

VREF

R
50Ω

EL5176

R

F1

0Ω

S3

1

FBP

OUT+

10

OUT+

INP

R

INN-

50Ω

R
50Ω

S1

S2

R

OPEN

Typical Performance Curves

AV = 1, RLD = 1kΩ, CLD = 2.7pF

4
3
2
1
0

-1

-2

-3

MAGNITUDE (dB)

-4

-5

-6
1M

10M 100M 1G

FREQUENCY (Hz)

V

OP-P

= 1V

G

V

OP-P

P-P

= 200mV

IN+

2

REF

3

IN-

4

5 6FBN OUT-

VS-

VS+

EN

R

F2

0Ω

9

-5V

R

8

+5V

7

NORMALIZED MAGNITUDE (dB)

LD

1kΩ

R

= 1kΩ, CLD = 2.7pF

LD

4
3
2
1
0

-1

-2

-3

-4

-5

-6
1M

EN

OUT-

AV = 1

AV = 5

AV = 10

10M 100M 1G

FREQUENCY (Hz)

AV = 2

FIGURE 1. FREQUENCY RESPONSE FIGURE 2. FREQUENCY RESPONSE FOR VARIOUS GAIN

A

= 1, CLD = 2.7pF

V

4
3
2
1
0

-1

-2

-3

-4

NORMINALIZED GAIN (dB)

-5

-6
1M

10M 100M 1G

FREQUENCY (Hz)

RLD = 1kΩ

RLD = 200Ω

FIGURE 3. FREQUENCY RESPONSE vs R

RLD = 500Ω

LD

AV = 1, RLD = 1kΩ

5
4
3
2
1
0

-1

-2

MAGNITUDE (dB)

-3

-4

-5
1M

C

= 9pF

LD

C

= 2.7pF

LD

10M 100M 1G

FREQUENCY (Hz)

FIGURE 4. FREQUENCY RESPONSE vs C

C

= 56pF

LD

C

= 34pF

LD

C

LD

4

= 23pF

LD

August 3, 2005

FN7343.2