MAXIM MAX2667, MAX2669 Technical data

19-5518; Rev 0; 9/10

EVALUATION KIT

AVAILABLE

GPS/GNSS Ultra-Low-Noise-Figure LNAs

General Description

The MAX2667/MAX2669 high-gain, low-noise amplifiers
(LNAs) are designed for GPS L1, Galileo, and GLONASS
applications. Designed in Maxim’s advanced SiGe pro­cess, the devices achieve a high gain and our lowest
noise figure, while maximizing the input-referred 1dB
compression point and the 3rd-order intercept point.

The devices operate from a +1.6V to +3.3V single sup­ply. The MAX2667 is optimized for low current. The
MAX2669 is optimized for high linearity. The shutdown
feature in the device reduces the supply current to be
less than 10μA. The devices are available in a very small,
lead-free, RoHS-compliant, 0.86mm x 1.26mm x 0.65mm
wafer-level package (WLP).

Features

S 19dB High-Power Gain (MAX2667)

S

Ultra-Low Noise Figure: 0.65dB

S

Integrated 50Ω Output Matching Circuit

S

Low 4.1mA Supply Current (MAX2667)

S

Wide 1.6V to 3.3V Supply Voltage Range

S

Low Bill of Materials: Two Inductors, Three

Capacitors, and One Resistor

S Small Footprint: 0.86mm x 1.26mm

S

Thin Profile: 0.65mm

S

0.4mm-Pitch Wafer-Level Package (WLP)

MAX2667/MAX2669

Applications

Automotive Navigation

Location-Enabled Mobile Devices

Telematics (Asset Tracking and Management)

Personal Navigation Devices (PNDs)

Cellular Phones with GPS

Ordering Information

PART TEMP RANGE PIN-PACKAGE

MAX2667EWT+T -40°C to +85°C 6 WLP
MAX2669EWT+T -40°C to +85°C 6 WLP

+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.

Notebook PCs/Ultra-Mobile PCs

Recreational, Marine Navigation

Avionics

Watches

Typical Application Circuit

SHDN

RF OUTPUT

C2

RF INPUT

RFIN

+

MAX2667
MAX2669

A1

BIAS

B1

RFOUT

A2

V

CC

B2

25kΩ

V

CC

C3

BIAS

L2

C1

L1

GNDAC

L2 = 100nH
C3 = 39pF

_______________________________________________________________ Maxim Integrated Products 1

C1

L1 = 6.2nH (MAX2667)
C1 = 100nF (MAX2667)
C2 = 39pF

C2

GNDDC

L1 = 3.3nH (MAX2669)
C1 = 100nF (MAX2669)

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.

GPS/GNSS Ultra-Low-Noise-Figure LNAs

ABSOLUTE MAXIMUM RATINGS

VCC to GND_ ........................................................-0.3V to +3.6V

RFOUT and BIAS to GND_ ..... -0.3V to (Operating V

Maximum RF Input Power ............................................... +5dBm

Continuous Power Dissipation (T

WLP (derates 10.5mW/°C above +70°C) ....................840mW

Note 1: Refer to Application Note 1891: Wafer-level packaging (WLP) and its applications.

CAUTION! ESD SENSITIVE DEVICE

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.

= +70°C)

A

+ 0.3V)

CC

DC ELECTRICAL CHARACTERISTICS

(MAX2667/MAX2669 EV kit. VCC = 1.6V to 3.3V, no RF signals are applied, TA = -40°C to +85°C. Typical values are at VCC = 2.85V
and T

= +25°C, unless otherwise noted.) (Note 2)

MAX2667/MAX2669

A

PARAMETER CONDITIONS MIN TYP MAX UNITS

Supply Voltage 1.6 2.85 3.3 V

Supply Current

Digital Input Logic-High T
Digital Input Logic-Low T

SHDN = high

Shutdown mode, SHDN = low

= +25°C 1.2 V

A

= +25°C 0.45 V

A

Maximum Current into RF Input .........................................10mA

Operating Temperature Range .......................... -40°C to +85°C

Junction Temperature .....................................................+150°C

Storage Temperature Range ............................ -65°C to +160°C

Soldering Temperature (reflow) (Note 1) ........................+260°C

MAX2667 4.1
MAX2669 7.7

10

mA

FA

AC ELECTRICAL CHARACTERISTICS

(MAX2667/MAX2669 EV kit. VCC = 1.6V to 3.3V, f
T

= +25°C, unless otherwise noted.) (Note 2)

A

PARAMETER CONDITIONS MIN TYP MAX UNITS

RF Frequency L1 band 1575.42 MHz

= 2.85V

V

CC

Power Gain

V

= 1.6V

CC

Noise Figure

In-Band 3rd-Order Input
Intercept Point

Out-of-Band 3rd-Order Input
Intercept Point

Input 1dB Compression Point (Note 5)

Input Return Loss 10 dB
Output Return Loss 15 dB
Reverse Isolation 30 dB

2

(Note 3)

(Note 4)

= 1575.42MHz, TA = -40°C to +85°C. Typical values are at VCC = 2.85V and

RFIN

MAX2667 15.0 19.5
MAX2669 14.6 17.7
MAX2667 14.8 19.4
MAX2669 14.3 17.6
V

= 1.8V 0.65

CC

= 3.3V 0.65

V

CC

MAX2667 -3.5
MAX2669 +4.5
MAX2667 +2.5
MAX2669 +8
MAX2667 -12.5
MAX2669 -10

dB

dB

dBm

dBm

dBm

GPS/GNSS Ultra-Low-Noise-Figure LNAs

AC ELECTRICAL CHARACTERISTICS (continued)

(MAX2667/MAX2669 EV kit. VCC = 1.6V to 3.3V, f
T

= +25°C, unless otherwise noted.) (Note 2)

A

= 1575.42MHz, TA = -40°C to +85°C. Typical values are at VCC = 2.85V and

RFIN

MAX2667/MAX2669

Note 2: Min and max limits guaranteed by test at T

= +25°C and guaranteed by design and characterization at TA = -40°C and

A

TA = +85°C.

Note 3: Measured with the two tones located at 1MHz and 2MHz offset from the center of the GPS band with -30dBm/tone for

MAX2667 and -27dBm/tone for MAX2669.

Note 4: Measured with input tones at 1713MHz (-25dBm) and 1851MHz (-49dBm).
Note 5: Measured with a tone located at 5MHz offset from the center of the GPS band.

Typical Operating Characteristics

(MAX2667/MAX2669 EV kit. Typical values are at VCC = 2.85V, f

INPUT RETURN LOSS vs. FREQUENCY

0

-5

-10

-15

|S11| (dB)

-20

-25

-30

-35
500 2500

MAX2667

FREQUENCY (MHz)

MAX2669

200015001000

MAX2667 toc01

25

20

15

10

GAIN (dB)

5

0

-5

-10
500 2500

GAIN vs. FREQUENCY

MAX2669

= 1575.42MHz, TA = +25°C, unless otherwise noted.)

RFIN

REVERSE ISOLATION vs. FREQUENCY

MAX2667 toc02

-20

-30

-40

|S12| (dB)

-50

-60

-70

MAX2669

500 2500

FREQUENCY (MHz)

MAX2667

200015001000

FREQUENCY (MHz)

MAX2667

200015001000

MAX2667 toc03

OUTPUT RETURN LOSS vs. FREQUENCY

0

-5
MAX2667

-10
MAX2669

|S22| (dB)

-15

-20

-25

500 2500

FREQUENCY (MHz)

200015001000

MAX2667 toc04

MAX2667 IN-BAND IIP3 vs.

SUPPLY VOLTAGE AND TEMPERATURE

(TWO TONES LOCATED AT 1MHz AND

2MHz OFFSET WITH -35dBm/TONE)

0

-1

-2

IIP3 (dBm)

-3

-4

-5

-40NC

+25NC

+85NC

1.6 3.2
SUPPLY VOLTAGE (V)

MAX2669 IN-BAND IIP3 vs.

SUPPLY VOLTAGE AND TEMPERATURE

(TWO TONES LOCATED AT 1MHz AND

2MHz OFFSET WITH -30dBm/TONE)

8

MAX2667 toc05

3.02.82.62.42.22.01.8

6

-40NC

4

IIP3 (dBm)

+25NC

2

+85NC

0

1.6
SUPPLY VOLTAGE (V)

MAX2667 toc06

3.2

3.02.82.62.42.22.01.8

3