LMH6720MA National Semiconductor, LMH6720MA Datasheet

LMH6720MA

Manufacturer Part Number

LMH6720MA

Description

IC OPAMP SNGL 400MHZ W/SD 8SOIC

Manufacturer

National Semiconductor

Series

PowerWise®, VIP10™r

Datasheet

1.LMH6720MAX.pdf (16 pages)

Specifications of LMH6720MA

Applications

Current Feedback

Number Of Circuits

-3db Bandwidth

400MHz

Slew Rate

1800 V/µs

Current - Supply

5.6mA

Current - Output / Channel

70mA

Voltage - Supply, Single/dual (±)

8 V ~ 12.5 V, ±4 V ~ 6.25 V

Mounting Type

Surface Mount

Package / Case

8-SOIC (0.154", 3.90mm Width)

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Other names

*LMH6720MA

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Download datasheet (538Kb)

Wideband Video Op Amp; Single, Single with Shutdown

and Quad

General Description

The

National's VIP10 ™ high speed complementary bipolar pro-

cess with National's current feedback topology to produce a

very high speed op amp. These amplifiers provide a 400MHz

small signal bandwidth at a gain of +2V/V and a 1800V/μs

slew rate while consuming only 5.6mA from ±5V supplies.

The LMH6714/LMH6720/LMH6722 series offer exceptional

video performance with its 0.01% and 0.01° differential gain

and phase errors for NTSC and PAL video signals while driv-

ing a back terminated 75Ω load. They also offer a flat gain

response of 0.1dB to 120MHz. Additionally, they can deliver

70mA continuous output current. This level of performance

makes them an ideal op amp for broadcast quality video sys-

tems.

The LMH6714/LMH6720/LMH6722's small packages (SOIC,

SOT23 and LLP), low power requirement, low noise and dis-

tortion allow the LMH6714/LMH6720/LMH6722 to serve

portable RF applications. The high impedance state during

shutdown makes the LMH6720 suitable for use in multiplex-

ing multiple high speed signals onto a shared transmission

line. The LMH6720 is also ideal for portable applications

where current draw can be reduced with the shutdown func-

tion.

Typical Performance

VIP10 ™ is a trademark of National Semiconductor Corporation.

Non-Inverting Small Signal Frequency Response

LMH6714/LMH6720/LMH6722

200565

series

LMH6722/ LMH6722Q

LMH6714/ LMH6720/

20056506

combine

Features

■

Applications

■

Differential Gain and Phase vs. Number of Video Loads

400MHz (A

250MHz (A

0.1dB gain flatness to 120MHz

Low power: 5.6mA

TTL compatible shutdown pin (LMH6720)

Very low diff. gain, phase: 0.01%, 0.01° (LMH6714)

−58 HD2/ −70 HD3 at 20MHz

Fast slew rate: 1800V/μs

Low shutdown current: 500uA (LMH6720)

11ns turn on time (LMH6720)

7ns shutdown time (LMH6720)

Unity gain stable

Improved replacement for CLC400,401,402,404,406 and

446 (LMH6714)

Improved replacement for CLC405 (LMH6720)

Improved replacement for CLC415 (LMH6722)

LMH6722QSD is AEC-Q100 grade 1 qualified and is

manufactured on an automotive grade flow

HDTV, NTSC & PAL video systems

Video switching and distribution

Wideband active filters

Cable drivers

High speed multiplexer (LMH6720)

Programmable gain amplifier (LMH6720)

Automotive (LMH6722)

= +2V/V, V

(LMH6714)

OUT

= 500mV

= 2V

) -3dB BW

) −3dB BW

October 20, 2009

www.national.com

20056528

Related parts for LMH6720MA

LMH6720MA Summary of contents

Page 1

... The LMH6720 is also ideal for portable applications where current draw can be reduced with the shutdown func- tion. Typical Performance Non-Inverting Small Signal Frequency Response VIP10 ™ trademark of National Semiconductor Corporation. © 2009 National Semiconductor Corporation LMH6714/ LMH6720/ LMH6722/ LMH6722Q Features ■ ...

Page 2

... Absolute Maximum Ratings 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 Machine Model OUT Common Mode Input Voltage Differential Input Voltage Maximum Junction Temperature Storage Temperature Range ...

Page 3

Symbol Parameter I Input Bias Current BN DIBN Average Drift I Input Bias Current BI DIBI Average Drift PSRR Power Supply Rejection Ratio DC CMRR Common Mode Rejection Ratio I Supply Current CC I Supply Current During CCI Shutdown Miscellaneous ...

Page 4

... Units / Rail LMH6714MA 2.5k Units Tape and Reel 1k Units Tape and Reel A96A 3k Units Tape and Reel 95 Units / Rail LMH6720MA 2.5k Units Tape and Reel 55 Units / Rail LMH6722MA 2.5k Units Tape and Reel 94 Units / Rail LMH6722MT 2.5k Units Tape and Reel ...

Page 5

Typical Performance Characteristics Specified). Non-Inverting Small Signal Frequency Response Inverting Frequency Response Inverting Frequency Response vs +5V, V − = −5V Non-Inverting Large Signal Frequency Response 20056506 Non-Inverting Frequency Response vs. ...

Page 6

Harmonic Distortion vs. V DG/DP (LMH6714) DG/DP (LMH6722) www.national.com 3rd Harmonic Distortion vs. V OUT 20056502 20056528 Large Signal Pulse Response 20056535 6 OUT 20056501 DG/DP (LMH6720) 20056505 20056513 ...

Page 7

Small Signal Pulse Response 20056510 Open Loop Transimpedance Z(s) 20056523 CMRR vs. Frequency 20056525 Closed Loop Output Resistance PSRR vs. Frequency Frequency Response vs 20056511 20056516 F 20056512 www.national.com ...

Page 8

DC Errors vs. Temperature 3rd Order Intermodulation vs. Output Power Noise vs. Frequency www.national.com Maximum V 20056518 Crosstalk vs. Frequency (LMH6722) for each channel with all others active 20056527 20056540 8 vs. Frequency OUT 20056526 20056536 ...

Page 9

Application Section FEEDBACK RESISTOR SELECTION One of the key benefits of a current feedback operational am- plifier is the ability to maintain optimum frequency response independent of gain by using appropriate values for the feed- back resistor (R ). The ...

Page 10

FIGURE 4. Enable/Disable Operation ENABLE/DISABLE OPERATION USING ±5V SUPPLIES (LMH6720 ONLY) The LMH6720 has a TTL logic compatible disable function. Apply a logic low (<.8V) to the DS pin and the LMH6720 is disabled. Apply a logic high (>2.0V), or ...

Page 11

WIDE BAND DIGITAL PROGRAMMABLE GAIN AMPLIFIER (LMH6720 ONLY) FIGURE 6. Wideband Digitally Controlled Programmable Gain Amplifier As shown in Figure 6 and Figure 7 the LMH6720 can be used to construct a digitally controlled programmable gain amplifi- er. Each amplifier ...

Page 12

FIGURE 8. Equalizer Circuit Schematic FIGURE 9. Digital Signal without and with Equalization FIGURE 10. Design Equations www.national.com 20056522 FIGURE 11. Equalizer Frequency Response POWER DISSIPATION Follow these steps to determine the Maximum power dissi- pation for the LMH6714/LMH6720/LMH6722: 1. ...

Page 13

Physical Dimensions inches (millimeters) unless otherwise noted 5-Pin SOT23 NS Product Number MF05A 6-Pin SOT23 NS Product Number MF06A 13 www.national.com ...

Page 14

SOIC NS Product Number M08A 14-Pin SOIC NS Product Number M14A 14 ...

Page 15

TSSOP NS Product Number MTC14 14-Pin LLP NS Product Number SDA14A 15 www.national.com ...

Page 16

... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www ...

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