LMH6553SD/NOPB National Semiconductor, LMH6553SD/NOPB Datasheet

IC AMP DIFF 900MHZ W/CLAMP 8LLP

LMH6553SD/NOPB

Manufacturer Part Number
LMH6553SD/NOPB
Description
IC AMP DIFF 900MHZ W/CLAMP 8LLP
Manufacturer
National Semiconductor
Series
LMH®, PowerWise®r
Datasheet

Specifications of LMH6553SD/NOPB

Amplifier Type
Differential
Number Of Circuits
1
Output Type
Differential
Slew Rate
2300 V/µs
-3db Bandwidth
900MHz
Current - Input Bias
50µA
Current - Supply
29.1mA
Current - Output / Channel
120mA
Voltage - Supply, Single/dual (±)
4.5 V ~ 12 V, ±2.25 V ~ 6 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-LLP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Gain Bandwidth Product
-
Voltage - Input Offset
-
Other names
LMH6553SD
© 2010 National Semiconductor Corporation
900 MHz Fully Differential Amplifier With Output Limiting
Clamp
General Description
The LMH6553 is a 900 MHz differential amplifier with an in-
tegrated adjustable output limiting clamp. The clamp increas-
es system performance and provides transient over-voltage
protection to following stages. The internal clamp feature of
the LMH6553 reduces or eliminates the need for external dis-
crete overload protection networks. When used to drive
ADCs, the amplifier's output clamp allows low voltage ADC
inputs to be protected from being overdriven and damaged by
large input signals appearing at the system input. Fast over-
drive recovery of 600 ps ensures the amplifier output rapidly
recovers from a clamping event and quickly resumes to follow
the input signal. The LMH6553 delivers exceptional band-
width, distortion, and noise performance ideal for driving
ADCs up to 14-bits. The LMH6553 could also be used for au-
tomotive, communication, medical, test and measurement,
video, and LIDAR applications.
With external gain set resistors and integrated common mode
feedback, the LMH6553 can be configured as either a differ-
ential input to differential output or single ended input to
differential output gain block. The LMH6553 can be AC or DC
coupled at the input which makes it suitable for a wide range
of applications including communication systems and high
speed oscilloscope front ends. The LMH6553 is available in
8-pin PSOP and 8-pin LLP packages, and is part of our
LMH
Typical Application
LMH
®
is a registered trademark of National Semiconductor Corporation.
®
high speed amplifier family.
Single-Ended Input Differential Output ADC Driver
300437
LMH6553
Features
Applications
900 MHz −3 dB small signal bandwidth @ A
670 MHz −3 dB large signal bandwidth @ A
−79 dB THD @ 20 MHz
−92 dB IMD3 @ f
10 ns settling time to 0.1%
600 ps clamp overdrive recovery time
40 mV clamp accuracy with 100% Overdrive
−0.1 mV/°C clamp temperature drift
4.5 to 12 supply voltage operation
Differential ADC driver
Video over twisted pair
Differential line driver
Single end to differential converter
High speed differential signaling
IF/RF amplifier
SAW filter buffer/driver
CCD Output Limiting Amplifier
Automotive Safety Applications
c
= 20 MHz
30043769
October 13, 2010
www.national.com
V
V
= 1
= 1

Related parts for LMH6553SD/NOPB

LMH6553SD/NOPB Summary of contents

Page 1

... PSOP and 8-pin LLP packages, and is part of our LMH ® high speed amplifier family. Typical Application LMH ® registered trademark of National Semiconductor Corporation. © 2010 National Semiconductor Corporation LMH6553 Features ■ 900 MHz −3 dB small signal bandwidth @ A ■ 670 MHz −3 dB large signal bandwidth @ A ■ ...

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 5) Human Body Model Machine Model Supply Voltage Common Mode Input Voltage Maximum Input Current (pins Maximum Output Current (pins 4, 5) ...

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Symbol Parameter Input Characteristics I Input Bias Current (Note 11 Input Bias Current Differential Boffset (Note 7) CMRR Common Mode Rejection Ratio (Note 7) R Input Resistance IN C Input Capacitance IN CMVR Input Common Mode Voltage Range ...

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Symbol Parameter V Output Common Mode Error OSCM Input Bias Current Voltage Range CMRR Input Resistance Gain Miscellaneous Performance Z Open Loop Transimpedance T PSRR Power Supply Rejection Ratio I Supply Current ±2.5V Electrical Characteristics S Unless ...

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Symbol Parameter Noise Figure (See Figure 5) Input Characteristics I Input Bias Current (Note 11 Input Bias Current Differential Boffset (Note 7) CMRR Common Mode Rejection Ratio (Note 7) R Input Resistance IN C Input Capacitance IN CMVR ...

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Symbol Parameter V Output Common Mode Error OSCM Input Bias Current Voltage Range CMRR Input Resistance Gain Miscellaneous Performance Z Open Loop Transimpedance T PSRR Power Supply Rejection Ratio I Supply Current S Note 1: Absolute Maximum Ratings indicate limits ...

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Connection Diagrams Pin Descriptions Pin No. Pin Name Description 1 -IN Negative Input 2 V Output Common Mode Control Positive Supply 4 +OUT Positive Output 5 -OUT Negative Output 6 V- Negative Supply 7 V Output Voltage ...

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Typical Performance Characteristics V for single ended in, differential out, unless specified). Frequency Response vs. Gain Frequency Response vs. V Frequency Response vs. Supply Voltage (R www.national.com = ± 25° Frequency Response vs. Gain 30043747 ...

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Frequency Response vs. Capacitive Load Frequency Response vs. Resistive Load Frequency Response vs Suggested R 30043721 Frequency Response vs. Resistive Load 30043759 1 V Pulse Response Single-Ended Input PP 30043761 9 vs. Capacitive Load O 30043722 30043760 30043726 ...

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V Pulse Response Single-Ended Input PP Pulse Response with 0% and 100% Overdrive Overdrive Recovery with V www.national.com 4 V Pulse Response Single-Ended Input PP 30043727 Pulse Response with 0% and 100% Overdrive 30043774 = ±5V Overdrive Recovery with ...

Page 11

Output Common Mode Pulse Response Distortion vs. Supply Voltage (f =20Mhz Distortion vs =20Mhz Distortion vs. Frequency Single-Ended Input (R 30043724 =800Ω) Distortion vs. Supply Voltage (f L 30043743 =800Ω) Distortion vs. V ...

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Distortion vs. Frequency Single-Ended Input (R Distortion vs. Supply Voltage (f Distortion vs =75Mhz www.national.com =200Ω) Distortion vs. Supply Voltage (f L 30043781 =200Ω) =75Mhz, R Distortion vs 30043783 =200Ω) L 30043785 ...

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Minimum V vs. I OUT OUT 30043731 Closed Loop Output Impedance 30043718 Open Loop Transimpedance 30043742 Closed Loop Output Impedance Open Loop Transimpedance PSRR 13 30043717 30043741 30043719 www.national.com ...

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PSRR Balance Error Noise Figure www.national.com 30043720 Noise Figure 30043713 Differential S-Parameter Magnitude vs. Frequency 30043746 14 CMRR 30043733 30043745 30043755 ...

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Differential S-Parameter Phase vs. Frequency 3rd Order Intermodulation Products vs. V 3rd Order Intermodulation Products vs. Center Frequency 3rd Order Intermodulation Products vs. V 30043756 3rd Order Intermodulation Products vs. Center Frequency OUT 30043752 3rd Order Intermodulation Products vs. Center ...

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Order Intermodulation Products vs. Center Frequency www.national.com 3rd Order Intermodulation Products vs. V 30043779 16 CLAMP 30043780 ...

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Application Information The LMH6553, a fully differential current feedback amplifier with integrated output common mode control and output lim- iting clamp, is designed to provide protection of following input stages. The common mode feedback circuit sets the output common mode ...

Page 18

FIGURE 3. Single-Ended Input with Differential Output When using the LMH6553 in single-to-differential mode, the complementary output is forced to a phase inverted replica of the driven output by the common mode feedback circuit as opposed to being driven by ...

Page 19

SPLIT SUPPLY OPERATION For optimum performance, split supply operation is recom- mended using +5V and −5V supplies; however, operation is possible on split supplies as low as +2.25V and −2.25V and as high as +6V and −6V. Provided the total ...

Page 20

OUTPUT NOISE PERFORMANCE AND MEASUREMENT Unlike differential amplifiers based on voltage feedback ar- chitectures, noise sources internal to the LMH6553 refer to the inputs largely as current sources, hence the low input re- ferred voltage noise and relatively higher input ...

Page 21

High Speed Differential Amplifiers to Drive ADCs. For more information regarding a particular ADC, refer to the particular ADC datasheet for details. TABLE 3. DIFFERENTIAL INPUT ADCs COMPATIBLE WITH LMH6553 DRIVER Product Number Max Resolution Sampling Rate (MSPS) ADC1173 15 ...

Page 22

FIGURE 13. Split Supply Bypassing Capacitors FIGURE 14. Single Supply Bypassing Capacitors POWER DISSIPATION The LMH6553 is optimized for maximum speed and perfor- mance in the small form factor of the standard LLP package. To ensure maximum output drive and ...

Page 23

EVALUATION BOARD See the LMH6553 Product Folder on www.national.com for evaluation board availability and ordering information. 23 www.national.com ...

Page 24

Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 8-Pin PSOP NS Package Number MRA08A 8-Pin LLP NS Package Number SDA08C 24 ...

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Notes 25 www.national.com ...

Page 26

... For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com 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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