NSC LMH6715MA, LMH6715MAX Datasheet

LMH6715
Dual Wideband Video Op Amp

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

±

5V supplies.

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.

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

V

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

+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

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

Differential Gain & Phase with
Multiple Video Loads

20042908

Frequency Response vs. V

OUT

20042916

January 2003

LMH6715 Dual Wideband Video Op Amp

© 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/
Distributors for availability and specifications.

ESD Tolerance (Note 4)

Human Body Model 2000V

Machine Model 150V

V

CC

±

6.75V

I

OUT

(Note 3)

Common-Mode Input Voltage

±

V

CC

Differential Input Voltage 2.2V

Maximum Junction Temperature +150˚C

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

Lead Temperature (Soldering 10
sec)

+300˚C

Operating Ratings

Thermal Resistance

Package (θ

JC

)(θJA)

SOIC 65˚C/W 145˚C/W

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

Nominal Operating Voltage

±

5V to±6V

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

OUT

<

0.5VPP,RF= 300Ω 280 400 MHz

LSBW -3dB Bandwidth V

OUT

<

4.0VPP,RF= 300Ω 170 MHz

Gain Flatness V

OUT

<

0.5V

PP

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

GFR Rolloff DC to 100MHz, R

F

= 300Ω 0.1 dB

LPD Linear Phase Deviation DC to 100MHz, R

F

= 300Ω 0.25 deg

DG Differential Gain R

L

= 150Ω, 4.43MHz 0.02 %

DP Differential Phase R

L

= 150Ω, 4.43MHz 0.02 deg

Time Domain Response

Tr Rise and Fall Time 0.5V Step 1.4 ns

4V Step 3 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

PP

, 20MHz −60 dBc

HD3 3rd Harmonic Distortion 2V

PP

, 20MHz −75 dBc

Equivalent Input Noise

V

N

Non-Inverting Voltage

>

1MHz 3.4 nV/

I

N

Inverting Current

>

1MHz 10.0 pA/

I

NN

Non-Inverting Current

>

1MHz 1.4 pA/

SNF Noise Floor

>

1MHz −153 dB

1Hz

XTLKA Crosstalk Input Referred 10MHz −70 dB

Static, DC Performance

V

IO

Input Offset Voltage

±

2

±

6

±

8

mV

DV

IO

Average Drift

±

30 µV/˚C

I

BN

Input Bias Current Non-Inverting

±

5

±

12

±

20

µA

DI

BN

Average Drift

±

30 nA/˚C

I

BI

Input Bias Current Inverting

±

6

±

21

±

35

µA

DI

BI

Average Drift

±

20 nA/˚C

PSRR Power Supply Rejection Ratio DC 46

44

60 dB

LMH6715

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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

56 dB

I

CC

Supply Current per Amplifier RL=

∞

4.7

4.1

5.8 7.6

8.1

mA

Miscellaneous Performance

R

IN

Input Resistance Non-Inverting 1000 kΩ

C

IN

Input Capacitance Non-Inverting 1.0 pF

R

OUT

Output Resistance Closed Loop .06 Ω

V

O

Output Voltage Range RL=

∞

±

4.0 V

V

OL

RL= 100Ω

±

3.5

±

3.4

±

3.9 V

CMIR Input Voltage Range Common Mode

±

2.2 V

I

O

Output Current 70 mA

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

J=TA

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

J

>

TA.
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

OUT

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

more details.

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

Connection Diagram

8-Pin SOIC

20042904

Top View

Ordering Information

Package Part Number Package Marking Transport Media NSC Drawing

8-pin SOIC

LMH6715MA

LMH6715MA

Rails

M08A

LMH6715MAX 2.5k Units Tape and Reel

LMH6715

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Typical Performance Characteristics (T

A

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

100Ω, unless otherwise specified).

Non-Inverting Frequency Response Inverting Frequency Response

20042913

20042912

Non-Inverting Frequency Response vs. V

OUT

Small Signal Channel Matching

20042916 20042901

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

F

20042915

20042914

LMH6715

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