LMH6553 - 900 MHz Fully Differential Amplifier with Output Limiting Clamp

LMH6553 - 900 MHz Fully Differential Amplifier with Output Limiting Clamp from the PowerWise® Family

Datasheet	Packaging	Samples & Pricing	Eval. Boards	Reliability	Models	Application Notes	Knowledge Base

Features

•	900 MHz −3 dB small signal bandwidth @ A_V = 1
•	670 MHz −3 dB large signal bandwidth @ A_V = 1
•	−79 dB THD @ 20 MHz
•	−92 dB IMD3 @ f_c = 20 MHz
•	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

General Description

The LMH6553 is a 900 MHz differential amplifier with an integrated adjustable output limiting clamp. More...

Applications

•	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

Typical Application

*click for larger image

Typical Application Circuit

Parametric Table expand

Parametric Table collapse

Channels 1 Channels

Input OutputType Diff In and Out

Gain Bandwidth 720 MHz

Slew Rate 2300 Volts/usec

Supply Min 4.5 Volt

Supply Max 12 Volt

Supply Current Per Channel 29.1 mA

Channels 1 Channels

Input OutputType Diff In and Out

Gain Bandwidth 720 MHz

Slew Rate 2300 Volts/usec

Supply Min 4.5 Volt

Supply Max 12 Volt

Supply Current Per Channel 29.1 mA

Output Current 120 mA

Voltage Noise 1.2 nV/root(Hz)

Shut down No

Feedback Type Current

Av+1 BW 720 MHz

Av+2 BW 680 MHz

HD 2nd -79 dB

HD 3rd -90 dB

Settling Time 6 ns

Tsettling Conditions 1%

Special Features Output Limiting Clamp

Function Op Amp

Temperature Min -40 deg C

Temperature Max 125 deg C

PowerWise Yes

View Using Catalog

Typical Performance

click for larger image

Frequency Response vs Gain (Diff Input)
Additional Resources

Application Notes (see below)

Datasheet

RoHS Compliance Information	Size in Kbytes	Date
LMH6553 900 MHz Fully Differential Amplifier With Output Limiting Clamp	758 Kbytes	17-Nov-08	Download

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Package Availability, Models, Samples & Pricing

Part Number

Package

Factory Lead Time

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking
Format

Type

Pins

Spec.

MSL
Rating

Peak
Reflow

RoHS
Report

CAD
Symbols

Weeks

Qty

$US each

LMH6553MR

PSOP

NOPB

260

RoHS

N/A

Full production

LMH6553.MOD

1K+

$3.35

rail
of
95

NSXYTT
LMH65
53MR

8 weeks

100

LMH6553MRE

PSOP

NOPB

260

RoHS

N/A

Full production

LMH6553.MOD

1K+

$3.35

reel
of
250

NSXYTT
LMH65
53MR

8 weeks

500

LMH6553MRX

PSOP

NOPB

260

RoHS

N/A

Full production

LMH6553.MOD

1K+

$3.35

reel
of
2500

NSXYTT
LMH65
53MR

8 weeks

N/A

LMH6553SDEVAL

LMH6553SDEVAL High Speed Differential Amplifier Evaluation Board

Full production

LMH6553.MOD

CALL

N/A

LMH6553SDE

LLP

NOPB

260

RoHS

N/A

Full production

LMH6553.MOD

1K+

$3.35

reel
of
250

XYTT
6553

6 weeks

500

LMH6553SD

LLP

NOPB

260

RoHS

N/A

Full production

LMH6553.MOD

1K+

$3.35

reel
of
1000

XYTT
6553

6 weeks

2000

LMH6553SDX

LLP

NOPB

260

RoHS

N/A

Full production

LMH6553.MOD

1K+

$3.35

reel
of
4500

XYTT
6553

8 weeks

N/A

General Description

The LMH6553 is a 900 MHz differential amplifier with an integrated adjustable output limiting clamp. The clamp increases 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 discrete 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 overdrive 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 bandwidth, distortion, and noise performance ideal for driving ADCs up to 14-bits. The LMH6553 could also be used for automotive, 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 differential 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 high speed amplifier family.

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMH6553MR	VIP 10	0	11856	0	0	1065000	4	302196657
LMH6553MRE	VIP 10	0	11856	0	0	1065000	4	302196657
LMH6553MRX	VIP 10	0	11856	0	0	1065000	4	302196657
LMH6553SD	VIP 10	0	11856	0	0	1065000	4	302196657
LMH6553SDE	VIP 10	0	11856	0	0	1065000	4	302196657
LMH6553SDX	VIP 10	0	11856	0	0	1065000	4	302196657

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

Application Notes

Title	Size in Kbytes	Date
AN-1834: Application Note 1834 8-Pin PSOP Differential Amplifier Evaluation Board	527 Kbytes	11-Jun-08	Download
AN-1851: Application Note 1851 LMH6553SDEVAL High Speed Differential Amplifier Evaluation Board	417 Kbytes	20-Jun-08	Download

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More Application Notes

Title	Size in Kbytes	Date
AN-1743: Application Note 1743 LMH6552SDEVAL High Speed Differential Amplifier Evaluation Board	417 Kbytes	20-Jun-08	Download
AN-1704: Application Note 1704 LMH6555 Application as High Speed ADC Input Driver	141 Kbytes	20-Sep-07	Download
AN-1704 (Japanese): Application Note 1704 LMH6555 Application as High Speed ADC Input Driver	93 Kbytes
AN-1704 (Chinese): Application Note 1704 LMH6555 Application as High Speed ADC Input Driver	206 Kbytes
AN-1719: Application Note 1719 Noise Figure Analysis Fully Differential Amplifier	158 Kbytes	18-Sep-07	Download
AN-1719 (Japanese): Application Note 1719 Noise Figure Analysis Fully Differential Amplifier	113 Kbytes
AN-1719 (Chinese): Application Note 1719 Noise Figure Analysis Fully Differential Amplifier	242 Kbytes
AN-1615: Application Note 1615 LMH6555 Evaluation Board	1307 Kbytes	22-Jun-07	Download
AN-1615 (Japanese): Application Note 1615 LMH6555 Evaluation Board	1286 Kbytes
AN-1393: Application Note 1393 Using High Speed Differential Amplifiers to Drive Analog to Digital Converters	535 Kbytes	8-May-06	Download
AN-1393 (Japanese): Application Note 1393 Using High Speed Differential Amplifiers to Drive Analog to Digital Converters	171 Kbytes
AN-1393 (Chinese): Application Note 1393 Using High Speed Differential Amplifiers to Drive Analog to Digital Converters	348 Kbytes
AN-1716: Application Note 1716 Driving the ADC14DS105 High-Speed A/D Converter for High Performance	80 Kbytes	20-Sep-07	Download
AN-1716 (Japanese): Application Note 1716 Driving the ADC14DS105 High-Speed A/D Converter for High Performance	98 Kbytes
AN-1716 (Chinese): Application Note 1716 Driving the ADC14DS105 High-Speed A/D Converter for High Performance	237 Kbytes

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[Information as of 3-Jul-2009]