MAX2687 Datasheet, PDF (1/11 Pages) Maxim Integrated Products – GPS/GNSS Low-Noise Amplifiers

19-6040; Rev 1; 5/12
EVAALVUAAILTAIOBNLEKIT
GPS/GNSS Low-Noise Amplifiers
General Description
The MAX2687/MAX2689/MAX2694 low-noise amplifiers
(LNAs) are designed for GPS L1, Galileo, and GLONASS
applications. Designed in Maxim’s advanced SiGe pro-
cess, the devices achieve high gain and low noise figure
while maximizing the input-referred 1dB compression
point and the 3rd-order intercept point. The MAX2687/
MAX2689/MAX2694 provide high gains of 12dB, 15dB,
and 18dB, respectively. Each is optimized for high
linearity.
The devices operate from a +1.6V to +3.6V 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).
Applications
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
Features
S High Power Gain: 17.8dB (MAX2687)
S Low Noise Figure: 0.85dB (MAX2687)
S Integrated 50Ω Output Matching Circuit
S Low Supply Current: 4.5mA (MAX2694)
S Wide Supply Voltage Range: 1.6V to 3.6V
S Low Bill of Materials: One Inductor, Two
Capacitors
S Small Footprint: 0.86mm x 0.86mm
S 0.4mm-Pitch Wafer-Level Package (WLP)
Ordering Information appears at end of data sheet.
Typical Application Circuit
RF
INPUT
VCC
C2
C1
L1
VCC _A1
MAX2687
MAX2689
MAX2694
RFIN _B1
A2
RFOUT
RF
OUTPUT
R1
25kI
SHDN
OPTIONAL SHUTDOWN
B2 GND
MAX2687
MAX2694
MAX2689
L1 = 4.7nH L1 = 5.8nH
C1 = 100nF C1 = 100nF
C2 = 10pF C2 = 10pF
________________________________________________________________ Maxim Integrated Products  1
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.