Maxim > Products > Wireless and RF > MAX2371, MAX2373

MAX2371, MAX2373

LNAs with Step Attenuator and VGA

Overview

Technical Documents

Ordering Info

Status

Part Number	Status
MAX2371	Active: In Production. See Ordering Information for details.
MAX2373	Active: In Production. See Ordering Information for details.

Description

The MAX2371/MAX2373 wideband low-noise amplifier (LNA) ICs are designed for direct conversion receiver (DCR) or very low intermediate frequency (VLIF) receiver applications. They contain single-channel, single-ended LNAs with switchable attenuator and automatic gain control (AGC) intended as a low-noise gain stage. These devices provide high gain-control range (typically 60dB) at radio frequency (RF) with excellent noise and reverse isolation characteristics.

The MAX2371/MAX2373 can work over the frequency range from 100MHz to 1GHz. In practice, only a narrow band is needed in each application, so different matching circuits can be applied. The devices are dynamically configured through the digital/analog control pins to select either maximum gain and low noise figure or power-saving mode. In addition, the MAX2371/MAX2373 feature high/low-current modes, high/low attenuation modes, linearly controlled gain states, and shutdown mode.

Data Sheet

Download	Rev 1	(PDF, 152kB)
E-Mail

An evaluation kit is available: MAX2371EVKIT, MAX2373EVKIT

Key Features

Low Noise Figure (1.8dB typical)
High Small-Signal Gain (15dB Nominal)
Wide Frequency Range of Operation (100MHz to 1GHz)
20dB Step Attenuator
45dB AGC Range Excluding Step Attenuator
2.65V to 3.3V Single-Supply Operation
Shutdown Mode
3.5mA Supply Current, Adjustable Down to 2.5mA
40dB Reverse Isolation

Applications/Uses

Direct Conversion Receiver (DCR)
Very Low IF Receiver

Key Specifications:

Low-Noise Amplifiers

Part Number

RF Freq.
(MHz)

Noise Figure
(dB)

Gain
(dB)

Input IP3
(dBm)

I_SUPPLY
(mA)

Footprint
(mm x mm)

Package/Pins

Budgetary Price

min

max

See Notes

MAX2371

100

1000

1.8

-4

2.5 to 3.5

3.0 x 3.0

QFN/12

TQFN/12

$1.40 @1k

MAX2373

-9

QFN/12

TQFN/12

$1.50 @1k

See All Low-Noise Amplifiers (36)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Typical Operating Circuit

Application Notes

Application Note 2243		MAX2371 Makes a Terrific IF AGC Amplifier at 220MHz
Tutorial 5100		General Layout Guidelines for RF and Mixed-Signal PCBs

Product Guides

Wireless (PDF)

Reliability Reports

Reliability Report:	MAX2371.pdf MAX2373.pdf
Show FIT data for:

Software/Models

MAX2371 S-Parameter File

MAX2373 S-Parameter File

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX2371EGC		N/A	No Longer Available	MAX2371ETC	QFN;12 pin;9.6 mm² Outline Drawing:21-0102 (PDF) Land Pattern: 90-0213 (PDF) Use pkgcode/variation: G1233-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX2371EGC+		N/A	No Longer Available	MAX2371ETC+	QFN;12 pin;9.6 mm² Outline Drawing:21-0102 (PDF) Land Pattern: 90-0213 (PDF) Use pkgcode/variation: G1233+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX2371EGC+T		N/A	No Longer Available	MAX2371ETC+	QFN;12 pin;9.6 mm² Outline Drawing:21-0102 (PDF) Land Pattern: 90-0213 (PDF) Use pkgcode/variation: G1233+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX2371EGC-T		N/A	No Longer Available	MAX2371ETC	QFN;12 pin;9.6 mm² Outline Drawing:21-0102 (PDF) Land Pattern: 90-0213 (PDF) Use pkgcode/variation: G1233-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX2371ETC+			Active		TQFN;12 pin;9.6 mm² Outline Drawing:21-0136 (PDF) Land Pattern: 90-0018 (PDF) Use pkgcode/variation: T1233+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX2371ETC+T			Active		TQFN;12 pin;9.6 mm² Outline Drawing:21-0136 (PDF) Land Pattern: 90-0018 (PDF) Use pkgcode/variation: T1233+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX2373E/D-B0A			Active		DICE SALES;NA pin;DICE; Land Pattern: Not Applicable Use pkgcode/variation: DICE8*		See data sheet
MAX2373EGC		N/A	No Longer Available	MAX2373ETC	QFN;12 pin;9.6 mm² Outline Drawing:21-0102 (PDF) Land Pattern: 90-0213 (PDF) Use pkgcode/variation: G1233-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX2373EGC+		N/A	No Longer Available	MAX2373ETC+	QFN;12 pin;9.6 mm² Outline Drawing:21-0102 (PDF) Land Pattern: 90-0213 (PDF) Use pkgcode/variation: G1233+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX2373EGC+T		N/A	No Longer Available	MAX2373ETC+	QFN;12 pin;9.6 mm² Outline Drawing:21-0102 (PDF) Land Pattern: 90-0213 (PDF) Use pkgcode/variation: G1233+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX2373EGC-T		N/A	No Longer Available	MAX2373ETC	QFN;12 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX2373ETC			Active		TQFN;12 pin;9.6 mm² Outline Drawing:21-0136 (PDF) Land Pattern: 90-0018 (PDF) Use pkgcode/variation: T1233-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX2373ETC+			Active		TQFN;12 pin;9.6 mm² Outline Drawing:21-0136 (PDF) Land Pattern: 90-0018 (PDF) Use pkgcode/variation: T1233+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX2373ETC+G071			Active		QFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX2373ETC+T			Active		TQFN;12 pin;9.6 mm² Outline Drawing:21-0136 (PDF) Land Pattern: 90-0018 (PDF) Use pkgcode/variation: T1233+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX2373ETC+TG071			Active		TQFN;12 pin;9.6 mm² Outline Drawing:21-0136 (PDF) Land Pattern: 90-0018 (PDF) Use pkgcode/variation: T1233+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX2373ETC-T			Active		QFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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Evaluation Kits

MAX2371EVKIT, MAX2373EVKIT

Evaluation Kit for the MAX2371, MAX2373

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