MAX2655：1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers

The MAX2654/MAX2655/MAX2656 high third-order intercept point (IP3), low-noise amplifiers (LNAs) are designed for applications in GPS, PCS, WLL, and satellite phone systems. The MAX2654/MAX2655/MAX2656 incorporate on-chip internal output matching to 50Ω, eliminating the need for external matching components. A shutdown feature in the MAX2654/MAX2655 reduces the operating current to 0.1µA, eliminating the need for an external supply switch. The MAX2654 operates in the GPS frequency of 1575MHz with 15.1dB of gain, 1.5dB noise figure, and only consumes 5.8mA. The MAX2655 is designed with high-input IP3 to improve operation in cellular applications where the cellular power amplifier leaks into the GPS receiver. The MAX2656 is designed for PCS phone applications with 13.5dB of gain in high-gain mode and 0.8dB of gain in low-gain mode (selected by a logic control) and 1.9dB noise figure. The IP3 of MAX2655/MAX2656 is adjustable by a single external bias resistor (RBIAS), allowing supply current to be optimized for a specific application. The MAX2654/MAX2655/MAX2656 operate from a +2.7V to +5.5V single supply and are available in the miniature 6-pin SC70 package.

Key Features

Low Noise Figure
- MAX2654: 1.5dB at 1575MHz
- MAX2655: 1.45dB at 1575MHz
- MAX2656: 1.9dB at 1960MHz
High Gain
- MAX2654: 15.1dB at 1575MHz
- MAX2655: 14.1dB at 1575MHz
- MAX2656: 13.5dB at 1960MHz
12.7dB Gain Step (MAX2656 only)
Integrated 50Ω Output Matching
Variable IP3 Set by One Bias Resistor (MAX2655/MAX2656 only)
0.1µA Shutdown Mode (MAX2654/MAX2655 only)
+2.7V to +5.5V Single-Supply Operation
Ultra-Small 6-Pin SC70 Package

MAX2654, MAX2655, MAX2656: Typical Operating Circuit

Applications/Uses

DCS/PCS Cellular Phones
GPS Receivers in Cellular Phones
Satellite Phones
Wireless Local Loop (WLL)

DataSheet

title	Download file
MAX2654-MAX2656 Data Sheet	MAX2654-MAX2656.pdf

Parametrics

Part Number	RF Freq. (MHz)	RF Freq. (MHz)	Noise Figure (dB)	Gain (dB)	Input IP3 (dBm)	I_SUPPLY (mA)	Footprint (mm x mm)	Package/Pins	Budgetary Price
Part Number	min	max	Noise Figure (dB)	Gain (dB)	Input IP3 (dBm)	I_SUPPLY (mA)	Footprint (mm x mm)	Package/Pins	See Notes
MAX2654	1400	1700	1.5	15.1	-7.2	5.8	2.0 x 2.1	SC-70/6	$0.70 @1k
MAX2655	1400	1700	1.45	14.1	3.8	5.9 to 10.1		SC-70/6	$0.73 @1k
MAX2656	1800	2000	0.8	13.5	7.2	12.3		SC-70/6	-

Design kits & evaluation modules

Ordering Information

Part Number	Status	Recommended Replacement	Package	Temp	RoHS
MAX2655EXT+	Active		SC-70,;6 pin;5.3 mm²	-40°C to +85°C	Lead Free
MAX2655EXT+T	Active		SC-70,;6 pin;5.3 mm²	-40°C to +85°C	Lead Free
MAX2655EXT-T	No Longer Available	MAX2655EXT+T	SC-70,;6 pin;5.3 mm²	-40°C to +85°C	No

MAX2654-MAX2656.pdf MAX2656