max2686ews+t Maxim Integrated Products, Inc., max2686ews+t Datasheet

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max2686ews+t

Manufacturer Part Number
max2686ews+t
Description
Gps/gnss Low-noise Amplifiers
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
19-5456; Rev 0; 8/10
The MAX2686/MAX2688 low-noise amplifiers (LNAs) are
designed for GPS L1, Galileo, and GLONASS applica-
tions. Designed in Maxim’s advanced SiGe process,
the devices achieve high gain and ultra-low-noise figure
while maximizing the input-referred 1dB compression
point and the 3rd-order intercept point. The MAX2686
provides a high gain of 19dB. The MAX2688 supplies
15dB of gain while attaining higher linearity.
The devices operate from a +1.6V to +3.3V single sup-
ply. The optional shutdown feature in the devices reduc-
es the supply current to less than 10FA. The devices
are available in a very small, lead-free, RoHS-compliant,
0.86mm x 0.86mm x 0.65mm wafer-level package (WLP).
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.
Automotive Navigation
Telematics (Asset Tracking and Management)
Personal Navigation Devices (PNDs)
Cellular Phones with GPS
Notebook PCs/Ultra-Mobile PCs
Recreational, Marine Navigation
Avionics
Watches
Digital Cameras
_______________________________________________________________ Maxim Integrated Products 1
General Description
INPUT
RF
Applications
C1
GPS/GNSS Low-Noise Amplifiers
V
CC
C2
L1
RFIN
V
CC
A1
B1
MAX2686
L1 = 6.8nH
C1 = 100nF
C2 = 10pF
MAX2686
MAX2688
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
S High-Power Gain: 19dB (MAX2686)
S Ultra-Low-Noise Figure: 0.75dB (MAX2686)
S Integrated 50Ω Output Matching Circuit
S Low Supply Current: 4.1mA
S Wide Supply Voltage Range: 1.6V to 3.3V
S Low Bill of Materials: One Inductor, Two
S Small Footprint: 0.86mm x 0.86mm
S Thin Profile: 0.65mm
S 0.4mm-Pitch Wafer-Level Package (WLP)
MAX2686EWS+T
MAX2688EWS+T
L1 = 6.2nH
C1 = 100nF
C2 = 10pF
MAX2688
Capacitors
PART
A2
B2
RFOUT
GND
Typical Application Circuit
OPTIONAL SHUTDOWN
R1
25kI
RF
OUTPUT
SHDN
-40NC to +85NC
-40NC to +85NC
TEMP RANGE
Ordering Information
PIN-PACKAGE
4 WLP
4 WLP
Features

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max2686ews+t Summary of contents

Page 1

... S Integrated 50Ω Output Matching Circuit S Low Supply Current: 4.1mA S Wide Supply Voltage Range: 1.6V to 3.3V S Low Bill of Materials: One Inductor, Two Capacitors S Small Footprint: 0.86mm x 0.86mm S Thin Profile: 0.65mm S 0.4mm-Pitch Wafer-Level Package (WLP) PART MAX2686EWS+T MAX2688EWS+T +Denotes a lead(Pb)-free/RoHS-compliant package Tape and reel. MAX2686 MAX2688 ...

Page 2

GPS/GNSS Low-Noise Amplifiers ABSOLUTE MAXIMUM RATINGS V to GND ..........................................................-0.3V to +3.6V CC Other Pins to GND ...............-0. Operating V Maximum RF Input Power ............................................... +5dBm Continuous Power Dissipation (T = +70°C) A 4-Bump WLP (derates 9.7mW/°C above ...

Page 3

AC ELECTRICAL CHARACTERISTICS (continued) (MAX2686/MAX2688 EV kit 1.6V to 3.3V +25NC, unless otherwise noted.) (Note 2) A PARAMETER Output Return Loss Reverse Isolation Note 2: Min and max limits guaranteed by test at T ...

Page 4

GPS/GNSS Low-Noise Amplifiers (MAX2686/MAX2688 EV kit. Typical values are at V MAX2688 IN-BAND IIP3 vs. SUPPLY VOLTAGE AND TEMPERATURE (TWO TONES LOCATED AT 1MHz AND 2MHz OFFSET WITH -30dBm/TONE -40° ...

Page 5

BUMP NAME A1 V Supply Voltage. Bypass to ground with a 10pF capacitor as close as possible to the IC Output/SHDN Input. RFOUT is internally matched to 50I and pulled RFOUT A2 resistor. SHDN is ...

Page 6

GPS/GNSS Low-Noise Amplifiers Table 1. MAX2686 Typical S Parameter Values and K-Factor S11 S11 FREQ. MAG PHASE (MHz) (dB) (DEGREES) 1000 -2.9 -26.8 1100 -3.1 -27.2 1200 -3.4 -27.0 1300 -3.5 -28.0 1400 -3.5 -28.3 1500 -3.9 -29.0 1575 -4.1 ...

Page 7

Table 4. MAX2688 Typical Noise Parameters (V FREQUENCY (MHz) FMIN (dB) 1550 0.73 1560 0.74 1570 0.74 1575 0.74 1580 0.74 1590 0.74 1600 0.74 Applications Information A properly designed PCB is essential to any RF micro- wave circuit. Use ...

Page 8

... Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 8 2010 Maxim Integrated Products © Revision History DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc. PAGES CHANGED — ...

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