National Semiconductor LMH6715 Technical data

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LMH6715
Dual Wideband Video Op Amp

LMH6715 Dual Wideband Video Op Amp

January 2003

General Description

The LMH6715 combines National’s VIP10™high speed
complementary bipolar process with National’s current feed­back topology to produce a very high speed dual op amp.
The LMH6715 provides 400MHz small signal bandwidth at a
gain of +2V/V and 1300V/µs slew rate while consuming only

5.8mA per amplifier from
The LMH6715 offers exceptional video performance with its

0.02% and 0.02˚ differential gain and phase errors for NTSC
and PAL video signals while driving up to four back termi­nated 75Ω loads. The LMH6715 also offers a flat gain re­sponse of 0.1dB to 100MHz and very low channel-to­channel crosstalk of −70dB at 10MHz. Additionally, each
amplifier can deliver 70mA of output current. This level of
performance makes the LMH6715 an ideal dual op amp for
high density, broadcast quality video systems.

The LMH6715’s two very well matched amplifiers support a
number of applications such as differential line drivers and
receivers. In addition, the LMH6715 is well suited for Sallen
Key active filters in applications such as anti-aliasing filters
for high speed A/D converters. Its small 8-pin SOIC package,
low power requirement, low noise and distortion allow the
LMH6715 to serve portable RF applications such as IQ
channels.

±

5V supplies.

Differential Gain & Phase with
Multiple Video Loads

Features

TA= 25˚C, RL= 100Ω, typical values unless specified.

n Very low diff. gain, phase: 0.02%, 0.02˚
n Wide bandwidth: 480MHz (A

+2V/V)

n 0.1dB gain flatness to 100MHz
n Low power: 5.8mA/channel
n −70dB channel-to-channel crosstalk (10MHz)
n Fast slew rate: 1300V/µs
n Unity gain stable
n Improved replacement for CLC412

= +1V/V); 400MHz (AV=

V

Applications

n HDTV, NTSC & PAL video systems
n Video switching and distribution
n IQ amplifiers
n Wideband active filters
n Cable drivers
n DC coupled single-to-differential conversions

Frequency Response vs. V

OUT

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© 2003 National Semiconductor Corporation DS200429 www.national.com

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/

LMH6715

Storage Temperature Range −65˚C to +150˚C

Lead Temperature (Soldering 10
sec)

Distributors for availability and specifications.

ESD Tolerance (Note 4)

Operating Ratings

Human Body Model 2000V

Machine Model 150V

±

V

CC

I

OUT

Common-Mode Input Voltage

6.75V

(Note 3)

±

V

CC

Differential Input Voltage 2.2V

Thermal Resistance

Package (θ

)(θJA)

JC

SOIC 65˚C/W 145˚C/W

Operating Temperature Range −40˚C to +85˚C

Nominal Operating Voltage

Maximum Junction Temperature +150˚C

Electrical Characteristics

AV= +2, RF= 500Ω,VCC=±5V,RL= 100Ω; unless otherwise specified. Boldface limits apply at the temperature extremes.

Symbol Parameter Conditions Min Typ Max Units

Frequency Domain Response

SSBW -3dB Bandwidth V

LSBW -3dB Bandwidth V

Gain Flatness V

GFP Peaking DC to 100MHz, RF= 300Ω 0.1 dB

GFR Rolloff DC to 100MHz, R

LPD Linear Phase Deviation DC to 100MHz, R

DG Differential Gain R

DP Differential Phase R

Time Domain Response

Tr Rise and Fall Time 0.5V Step 1.4 ns

Ts Settling Time to 0.05% 2V Step 12 ns

OS Overshoot 0.5V Step 1 %

SR Slew Rate 2V Step 1300 V/µs

Distortion And Noise Response

HD2 2nd Harmonic Distortion 2V

HD3 3rd Harmonic Distortion 2V

Equivalent Input Noise

V

N

I

N

I

NN

Non-Inverting Voltage

Inverting Current

Non-Inverting Current

SNF Noise Floor

XTLKA Crosstalk Input Referred 10MHz −70 dB

Static, DC Performance

V

DV

I

BN

DI

I

BI

DI

IO

IO

BN

BI

Input Offset Voltage

Average Drift

Input Bias Current Non-Inverting

Average Drift

Input Bias Current Inverting

Average Drift

PSRR Power Supply Rejection Ratio DC 46

<

0.5VPP,RF= 300Ω 280 400 MHz

OUT

<

4.0VPP,RF= 300Ω 170 MHz

OUT

<

0.5V

OUT

= 150Ω, 4.43MHz 0.02 %

L

= 150Ω, 4.43MHz 0.02 deg

L

PP

= 300Ω 0.1 dB

F

= 300Ω 0.25 deg

F

4V Step 3 ns

, 20MHz −60 dBc

PP

, 20MHz −75 dBc

PP

>

1MHz 3.4 nV/

>

1MHz 10.0 pA/

>

1MHz 1.4 pA/

>

1MHz −153 dB

±

2

±

30 µV/˚C

±

5

±

30 nA/˚C

±

6

±

20 nA/˚C

±

6

±

8

±

12

±

20

±

21

±

35

60 dB

44

+300˚C

±

5V to±6V

mV

1Hz

µA

µA

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Electrical Characteristics (Continued)

AV= +2, RF= 500Ω,VCC=±5V,RL= 100Ω; unless otherwise specified. Boldface limits apply at the temperature extremes.

Symbol Parameter Conditions Min Typ Max Units

CMRR Common Mode Rejection Ratio DC 50

47

I

CC

Supply Current per Amplifier RL=

∞

4.7

4.1

Miscellaneous Performance

R

IN

C

IN

R

OUT

V

O

V

OL

Input Resistance Non-Inverting 1000 kΩ

Input Capacitance Non-Inverting 1.0 pF

Output Resistance Closed Loop .06 Ω

Output Voltage Range RL=

∞

RL= 100Ω

±

3.5

±

3.4

CMIR Input Voltage Range Common Mode

I

O

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but specific performance is not guaranteed. For guaranteed specifications, see the Electrical Characteristics tables.

Note 2: Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of
the device such that T
See Applications Section for information on temperature de-rating of this device." Min/Max ratings are based on product characterization and simulation. Individual
parameters are tested as noted.

Note 3: The maximum output current (I
more details.

Note 4: Human body model, 1.5kΩ in series with 100pF. Machine model, 0Ω In series with 200pF.

Output Current 70 mA

. No guarantee of parametric performance is indicated in the electrical tables under conditions of internal self heating where T

J=TA

) is determined by device power dissipation limitations. See the Power Dissipation section of the Application Division for

OUT

56 dB

5.8 7.6

8.1

±

4.0 V

±

3.9 V

±

2.2 V

mA

J

LMH6715

>

TA.

Connection Diagram

8-Pin SOIC

Top View

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Ordering Information

Package Part Number Package Marking Transport Media NSC Drawing

8-pin SOIC

LMH6715MA

LMH6715MAX 2.5k Units Tape and Reel

LMH6715MA

Rails

M08A

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Typical Performance Characteristics (T

100Ω, unless otherwise specified).

LMH6715

Non-Inverting Frequency Response Inverting Frequency Response

= 25˚C, VCC=±5V, AV=±2V/V, RF= 500Ω,RL=

A

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Non-Inverting Frequency Response vs. V

OUT

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Small Signal Channel Matching

Frequency Response vs. Load Resistance Non-Inverting Frequency Response vs. R

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F

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