LMH7324 - Quad 700 ps High Speed Comparator with RSPECL Outputs

LMH7324 - Quad 700 ps High Speed Comparator with RSPECL Outputs from the PowerWise® Family

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

Features

(V_CCI = V_CCO = +5V, V_EE = 0V.)

Propagation delay	700 ps
Overdrive dispersion	20 ps
Fast rise and fall times	150 ps
Supply range	5V to 12V
Input common mode range extends 200 mV below negative rail
RSPECL outputs

General Description

The LMH7324 is a quad comparator with 700 ps propagation delay and low dispersion of 20 ps for a supply voltage of 5V. More...

Applications

•	Digital receivers
•	High speed signal restoration
•	Zero-crossing detectors
•	High speed sampling
•	Window comparators
•	High speed signal triggering

Typical Application

click for larger image

typical schematic

Parameters Values

Response Time 0.0007 us

Output Bus LVDS/RSPECL

Supply Min 5 Volt

Supply Max 12 Volt

Channels 4 Channels

Offset Voltage max, 25C 9.5 mV

Output Current 25 mA

Input Range Vcm to V-

Supply Current Per Channel 25 mA

PowerWise Rating 3 18 uA x us

Max Input Bias Current 5000 nA

Special Features LVDS/RSPECL Out

Temperature Min -40 deg C

Temperature Max 85 deg C

Function Comparator

PowerWise Yes

Typical Performance

click for larger image

tpd vs supply over temp

Also Recommended

LMH7220▲	For A Single LVDS 2.9nS Prop Delay High Speed Comparator
LMH7322▲	For A Dual Version

Additional Resources

Application Notes

Connection Diagram

click for larger image

schematic symbol

Datasheet

RoHS Compliance Information	Size in Kbytes	Date
LMH7324 Quad 700 ps High Speed Comparator with RSPECL Outputs	496 Kbytes	21-May-08	Download
LMH7324 Quad 700 ps High Speed Comparator with RSPECL Outputs (Japanese)	677 Kbytes

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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

LMH7324EVAL

LMH7324 Quad 700ps High Speed Comparator with RSPECL Outputs Evaluation Board

Full production

N/A

$130.00

6 weeks

N/A

LMH7324SQ

LLP

NOPB

260

RoHS

N/A

Full production

N/A

1K+

$5.25

reel
of
1000

NS
UZXYTT
L7324SQ

6 weeks

500

LMH7324SQX

LLP

NOPB

260

RoHS

N/A

Full production

N/A

1K+

$5.25

reel
of
4500

NS
UZXYTT
L7324SQ

6 weeks

N/A

General Description

The LMH7324 is a quad comparator with 700 ps propagation delay and low dispersion of 20 ps for a supply voltage of 5V. The input voltage range extends 200 mV below the negative supply. This enables the LMH7324 to ground sense even when operating on a single power supply. The device operates from a wide supply voltage range from 5V to 12V, which allows for a wide input voltage range. However, if a wide input voltage range is not required, operating from a single-ended 5V supply results in a significant power savings, and less heat dissipation.

The outputs of the LMH7324 are RSPECL compatible and can also be configured to create LVDS levels. The LMH7324 operates over the industrial temperature range of −40°C to 125°C. The LMH7324 is available in a 32-Pin LLP package.

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMH7324SQ	VIP 10	0	12801	0	0	1155000	4	327734403
LMH7324SQX	VIP 10	0	12801	0	0	1155000	4	327734403

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-1683: Application Note 1683 LMH7324 High Speed Comparator Evaluation Board	1363 Kbytes	13-Sep-07	Download
AN-1683 (Japanese): Application Note 1683 LMH7324 High Speed Comparator Evaluation Board	1471 Kbytes
AN-1683 (Chinese): Application Note 1683 LMH7324 High Speed Comparator Evaluation Board	356 Kbytes

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More Application Notes

Title	Size in Kbytes	Date
AN-1602: Application Note 1602 LMH7322 Dual Comparator Evaluation Board	1838 Kbytes	30-Mar-07	Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 7-Nov-2009]