LMH7220 - High Speed Comparator with LVDS Output

LMH7220

High Speed Comparator with LVDS Output from the PowerWise® Family

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Reliability

Features
(V_S = 5V T_A = 25°C, Typical values unless otherwise specified)

Propagation delay @ 100 mV overdrive

2.9 ns

Rise and fall times

0.6 ns

Supply voltage

2.7V to 12V

Supply current

6.8 mA

Temperature range

−40°C to 125°C

LVDS output

Description
The LMH7220 is a high speed, low power comparator with an operating supply voltage range of 2.7V to 12V. The LMH7220 has a differential, LVDS output, driving 325 mV into a 100Ω symmetrical transmission line. The LMH7220 has a 2.9 ns propagation delay and 0.6 ns rise and fall times while the supply current is only 6.8 mA at 5V (load current excluded).

The LMH7220 inputs have a voltage range that extends 200 mV below ground, allowing ground sensing applications. The LMH7220 is available in both the 6-Pin TSOT and SC-70 packages. These packages are ideal where space is a critical item.

Applications

• Acquisition trigger

• Fast differential line receiver

• Pulse height analyzer

• Peak detector

• Pulse width modulator

• Remote threshold detection

• Oscilloscope triggering

Also Recommended

LMH7322▲ For A Dual 700ps High Speed Comparator With LVDS/ RSPECL Outputs

LMH7324▲ For A Quad 700ps High Speed Comparator With LVDS/ RSPECL Outputs

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LMH7220

Also Recommended

LMH7322▲	For A Dual 700ps High Speed Comparator With LVDS/ RSPECL Outputs
LMH7324▲	For A Quad 700ps High Speed Comparator With LVDS/ RSPECL Outputs

Typical Application *click for larger image

Connection Diagram *click for larger image

Typical Performance *click for larger image

Propagation Delay vs Vcm

Paramaters / Values	LMH7220	LMH7322	LMH7324
Response Time	0.0029 us	0.0007 us	0.0007 us
Output Bus	LVDS	LVDS/RSPECL	LVDS/RSPECL
Supply Min	2.7 Volt	2.7 Volt	5 Volt
Supply Max	12 Volt	12 Volt	12 Volt
Channels	1 Channels	2 Channels	4 Channels
Offset Voltage max, 25C	2.7 mV	8 mV	9.5 mV
Output Current	5 mA	50 mA	25 mA
Input Range	Vcm to V-	Vcm to V-	Vcm to V-
Supply Current Per Channel	7.5 mA	30 mA	25 mA
PowerWise Rating 3	22 uA x us	21 uA x us	18 uA x us
Max Input Bias Current	7000 nA	5000 nA	5000 nA
Special Features	LVDS Out	Adj Hysteresis, Adj Output Swing	LVDS/RSPECL Out
Temperature Min	-40 deg C	-40 deg C	-40 deg C
Temperature Max	125 deg C	125 deg C	85 deg C
Function	Comparator	Comparator	Comparator
PowerWise	Yes	Yes	Yes

Datasheets
Title Size Date Other
Language

LMH7220 High Speed Comparator with LVDS Output 1050
Kbytes 29-May-08 日本語

Featured Application Notes
Title Size Date Other
Language

AN-1534: Application Note 1534 Demo Board LMH7220 High Speed LVDS Comparator 1489
Kbytes 20-Oct-06 中文

Part Number(s)
(NSID)

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Availability

Current Reported Stock

Budgetary Pricing

Standard Pack Size

LMH7220MG/NOPB

RoHS Status

SC-70

Full production
Lead Time: 6 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	1244

$2.15 each at 1K+ pcs

reel
of
1000

LMH7220MGX/NOPB

RoHS Status

SC-70

Full production
Lead Time: 6 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$2.15 each at 1K+ pcs

reel
of
3000

LMH7220MK/NOPB
LMH7220MK

RoHS Status

TSOT

Full production
Lead Time: 6 weeks

Distributor	Region	Qty
ARROW	Worldwide	1000
AVNET-EM	Worldwide	940
DIGIKEY	Worldwide	1799
FARNELL	Europe and Asia	307
FUTURE	Worldwide	1100
NEWARK	Americas	842

$2.15 each at 1K+ pcs

reel
of
1000

LMH7220MKX/NOPB
LMH7220MKX

RoHS Status

TSOT

Full production
Lead Time: 6 weeks

Distributor		Region	Qty
DIGIKEY		Worldwide	0

$2.15 each at 1K+ pcs

reel
of
3000

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/packaging/leadfree.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

National's certificate of product compliance is located at RoHS Status.

Part Number(s) (NSID)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LMH7220MG/NOPB	SC-70	6	1	260	Detail	Download	N/A	C38 XTT
LMH7220MGX/NOPB	SC-70	6	1	260	Detail	Download	N/A	C38 XTT
LMH7220MK/NOPB LMH7220MK	TSOT	6	1 1	260 260	Detail	Download	N/A	C29A XTT
LMH7220MKX/NOPB LMH7220MKX	TSOT	6	1 1	260 260	Detail	Download	N/A	C29A XTT

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/packaging/leadfree.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

National's certificate of product compliance is located at RoHS Status.

CAD Symbols and Models
Download LMH7220 CAD Symbols

Models
N/A

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)

LMH7220MG VIP 10 0 12801 0 0 1155000 4 327734403

LMH7220MGX VIP 10 0 12801 0 0 1155000 4 327734403

LMH7220MK VIP 10 0 12801 0 0 1155000 4 327734403

LMH7220MKX 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.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/packaging/leadfree.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

National's certificate of product compliance is located at RoHS Status.

[Information as of 9-Feb-2010]