Features Logarithmic root mean square response 45 dB linear-in-dB power detection range Multi-band operation from 50 MHz to 8 GHz LOG conformance better than ±0.5 dB Highly temperature insensitive, ±0.25 dB Modulation independent response, 0.08 dB Minimal Slope and Intercept variation Shutdown functionality Wide supply range from 2.7V to 5V Tiny 6-bump microSMD package Description The LMH2110 is a 45 dB Logarithmic RMS power detector particularly suited for accurate power measurement of modulated RF signals that exhibit large peak-to-average ratios, i.e. large variations of the signal envelope. Such signals are encountered in W-CDMA and LTE cell phones. The RMS measurement topology inherently ensures a modulation insensitive measurement. The device has an RF frequency range from 50 MHz to 8 GHz. It provides an accurate, temperature and supply insensitive, output voltage that relates linearly to the RF input power in dBm. The LMH2110's excellent conformance to a logarithmic response enables an easy integration by using slope and intercept only, reducing calibration effort significantly. The device operates with a single supply from 2.7V to 5V. The LMH2110 has an RF power detection range from -40 dBm to 5 dBm and is ideally suited for use in combination with a directional coupler. Alternatively a resistive divider can be used as well. The device is active for EN = High, otherwise it is in a low power consumption shutdown mode. To save power and prevent discharge of an external filter capacitance, the output (OUT) is high-impedance during shutdown. The LMH2110 power detector is offered in a tiny 6-bump microSMD package. Applications Multi Mode, Multi band RF power control GSM/EDGE CDMA/CDMA2000 W-CDMA OFDMA LTE Infrastructure RF Power Control

Typical Application

Typical Application click for larger image Typical Application	Block Diagram click for larger image Block Diagram
Typical Performance *click for larger image Output Voltage and Log Conformance Error vs. RF Input Power at 1900 MHz

Parameters Values RF Frequency (MHz) 50-8000 Dynamic Range 45 dB Detector Power Range -40dBm to 5dBm Accuracy 0.5 dB Inputs/Outputs 1/1 Transfer Linear in dB Modulation Independent Yes Supply Min 2.7 Volt Supply Max 5 Volt Supply Current 4.8 mA Shut down Yes Application LTE, W-CDMA, OFDMA, CDMA/CDMA2000, GSM/EDGE Channels 1 Channels Temperature Min -40 deg C Temperature Max 85 deg C AEC Q-100 Automotive Grade 0

Datasheets

Title		Size	Date	Other Language
	LMH2110 8 GHz Logarithmic RMS Power Detector with 45 dB dynamic range	1755 Kbytes	13-Oct-10

Application Notes

Title		Size	Date	Other Language
	AN-2014: Application Note 2014 LMH2110 Evaluation Board	1746 Kbytes	4-May-10

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMH2110TM/NOPB RoHS Status	MICRO SMD	Full production Lead Time: 6 weeks	Distributor Region Qty AVNET-EM Worldwide 649 DIGI-KEY Worldwide 772	$2.40 each at 1K+ pcs	reel of 250
LMH2110TMX/NOPB RoHS Status	MICRO SMD	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$2.40 each at 1K+ pcs	reel of 3000

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 LMH2110.

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 LMH2110 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMH2110TMEVAL/NOPB	LMH2110 Evaluation Board	Full production Lead Free (RoHS)	Distributor Region Qty DIGI-KEY Worldwide 0 MOUSER Worldwide 2	$150.00 each	1
Description: The evaluation board is designed to help the evaluation of the LMH2110, which is a 45 dB Logarithmic RMS power detector particularly suited for accurate power measurement of modulated RF signals that exhibit large peak-to-average ratios, i.e. large variations of the signal envelope. Such signals are encountered in W-CDMA and LTE cell phones. The RMS measurement topology inherently ensures a modulation insensitive measurement. The device has an RF frequency range from 50 MHz to 8 GHz. It provides an accurate, temperature and supply insensitive, output voltage that relates linearly to the RF input power in dBm. The LMH2110's excellent conformance to a logarithmic response enables an easy integration by using slope and intercept only, reducing calibration effort significantly. The device operates with a single supply from 2.7V to 5V. The LMH2110 has an RF power detection range from -40 dBm to 5 dBm and is ideally suited for use in combination with a directional coupler. Alternatively a resistive divider can be used as well. The device is active for EN = High, otherwise it is in a low power consumption shutdown mode. To save power and prevent discharge of an external filter capacitance, the output (OUT) is high-impedance during shutdown. The LMH2110 power detector is offered in a tiny 6-bump microSMD package. Features: Logarithmic root mean square response 45 dB linear-in-dB power detection range Multi-band operation from 50 MHz to 8 GHz LOG conformance better than ±0.5 dB Highly temperature insensitive, ±0.25 dB Modulation independent response, 0.08 dB Minimal Slope and Intercept variation Shutdown functionality Wide supply range from 2.7V to 5V Tiny 6-bump microSMD package

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
LMH2110TM/NOPB	1.385	MICRO SMD	6	1	260	Detail	N/A	N/A	XV I P
LMH2110TMX/NOPB	1.385	MICRO SMD	6	1	260	Detail	N/A	N/A	XV I P

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 LMH2110.

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 LMH2110 is located at RoHS Status.

CAD Symbols and Models N/A

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMH2110TM	BICMOS8B+	0	3632	0	0	2762292	2	783807897
LMH2110TMX	BICMOS8B+	0	3632	0	0	2762292	2	783807897

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 LMH2110.

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 LMH2110 is located at RoHS Status.

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