Features (Typical values are: VSUPPLY = 2.7V and CL = 20 pF, unless otherwise specified) Small signal bandwidth 40 MHz Supply voltage range 2.4V to 5V Slew rate 110 V/µs Total supply current 1.6 mA Shutdown current 59 µA Rail-to-rail input and output   Individual buffer enable pins   Rapid Ton technology   Crosstalk rejection circuitry   8-pin LLP, pin access packaging   Temperature range -40°C to 85°C Description The LMV112 is a high speed dual clock buffer designed for portable communications and accurate multi-clock systems. The LMV112 integrates two 40 MHz low noise buffers which optimizes application and out performs large discrete solutions. This device enables superb system operation between the base band and the oscillator signal path while eliminating crosstalk. National Semiconductor's unique technology and design deliver accuracy, capacitance and load resistance while increasing the drive capability of the device. The low power consumption makes the LMV112 perfect for battery applications. The robust, independent, and flexible buffers are designed to provide the customer with the ability to manage complex clock signals in the latest wireless applications. The buffers deliver 110 V/µs internal slew rate with independent shutdown and duty cycle precision. The patented analog circuit drives capacitive loads beyond 20 pF. National's proven biasing technique has 1V centering, rail-to-rail input/output unity gain, and AC coupled convenient inputs. These integrated cells save space and require no external bias resistors. National's rapid recovery after disable optimizes performance and current consumption. The LMV112 offers individual enable pin controls and since there is no internal ground reference either single or split supply configurations offer additional system flexibility and power choices. The LMV112 is a proven replacement for any discrete circuitry and simplifies board layout while minimizing related parasitic components. The LMV112 is produced in the small LLP package which offers high quality while minimizing its use of PCB space. National's advanced packaging offers direct PCB-IC evaluation via pin access. Applications 3G mobile applications WLAN-WiMAX modules TD_SCDMA multi-mode MP3 and camera GSM modules Oscillator modules

Typical Application *click for larger image	Block Diagram *click for larger image
Typical Performance click for larger image

Parameters Values Output Current 68 mA Slew Rate 120 Volts/usec Channels 2 Channels Buffer Type Fixed Av+1 BW 40 MHz Supply Current Per Channel 0.8 mA PowerWise Rating 2 20 uA/MHz Gain 1 V/V Supply Min 2.4 Volt Supply Max 5 Volt Offset Voltage max, 25C 0.4 mV Max Input Bias Current 150000 nA Voltage Noise 27 nV/root(Hz) Special Features Independent Shutdown Gain Bandwidth 40 MHz Function Buffer Temperature Min -40 deg C Temperature Max 85 deg C

Datasheets

Title		Size	Date	Other Language
	LMV112 40 MHz Dual Clock Buffer	978 Kbytes	1-Jul-05

Application Notes

Title		Size	Date	Other Language
	AN-1799: Application Note 1799 LMV112 40 MHz Dual Clock Buffer Evaluation Board	237 Kbytes	18-Mar-08
	AN-1439: Application Note 1439 Use of the LMV112 to Reduce Reference Clock Interaction in Handheld Device	482 Kbytes	6-Jan-06	中文

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMV112SD/NOPB LMV112SD RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 2000 AVNET-EM Worldwide 1754 DIGI-KEY Worldwide 1186 FARNELL Europe and Asia 15 NEWARK Americas 881 TAYLOR Americas 3000	$0.42 each at 1K+ pcs	reel of 1000
LMV112SDX/NOPB LMV112SDX RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$0.42 each at 1K+ pcs	reel of 4500

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

Moisture Sensitivity Level Data for LMV112.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LMV112 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMV112SDEVAL	Evaluation Board for the LMV112 40 MHz Dual Clock Buffer	Full production	Distributor Region Qty DIGI-KEY Worldwide 0	$49.00 each	1
Description: This evaluation board is designed to aid in the characterization of National Semiconductors LMV112 40 MHz Dual Clock Buffer. This board simplifies the connection and ease of use of any oscillating input device. Use this evaluation board as a guide for high frequency layout and as a tool to aid in device testing and characterization. Contents: LMV112 Evaluation Board LMV112 40 MHz Dual Clock Buffer Datasheet Application Note 1799 for the LMV112 40 MHz Dual Clock Buffer Evaluation Board

National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C1) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/en/packaging/greennopb.html. Lead free products are RoHS compliant.

Lead Free product status is available through the search tool located here

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LMV112SD/NOPB LMV112SD	20.736 20.803	LLP	8	1 1	260 260	Detail	Download	N/A	ZXYTT 112SD
LMV112SDX/NOPB LMV112SDX	20.736 20.803	LLP	8	1 1	260 260	Detail	Download	N/A	ZXYTT 112SD

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

Moisture Sensitivity Level Data for LMV112.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LMV112 is located at RoHS Status.

CAD Symbols and Models Download LMV112 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMV112SD	CMOS7	0	21301	0	0	1584000	3	449464325
LMV112SDX	CMOS7	0	21301	0	0	1584000	3	449464325

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/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LMV112.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LMV112 is located at RoHS Status.