MAX2674 Datasheet, PDF (1/9 Pages) Maxim Integrated Products – GPS/GNSS LNAs with Antenna Switch and Bias

19-5670; Rev 0; 12/10
EVAALVUAAILTAIOBNLEKIT
GPS/GNSS LNAs with Antenna Switch and Bias
General Description
The MAX2674/MAX2676 are ultra-small, high-IP3, low-
noise amplifiers (LNAs) designed for GPS L1, Galileo,
and GLONASS applications. Designed in Maxim’s
advanced SiGe process, the devices are also equipped
with an autosensing feature for applications that enable
the use of external antennas. These high-performance
LNAs provide high gain and an ultra-low noise figure
while optimizing the input-referred 2dB compression
point and 3rd-order intercept point.
The ultra-small size is ideal for front-end modules and
receiver applications in cellular phones, smartphones,
PDAs, PNDs, or other custom GNSS applications. The
MAX2674/MAX2676 operate from a 1.6V to 3.6V single
supply. The MAX2674 is optimized for high gain, while
the MAX2676 is optimized for high linearity. A shutdown
feature is present in both devices reducing the supply
current to less than 10FA. The antenna port automati-
cally senses when an external antenna is connected,
eliminating the need for additional control circuitry
while also providing improved short-circuit protection.
The MAX2674/MAX2676 are available in an ultra-small,
RoHS-compliant 0.86mm x 1.26mm x 0.64mm wafer-
level package (WLP).
Features
S Eliminate Discrete Antenna Sensing, Switching,
and Bias Networks
Autodetect Antenna Connection
Provide Antenna Bias
Short-Circuit Protection
S Wide 1.6V to 3.6V Supply Voltage Range
S Ultra-Small Footprint (0.86mm x 1.26mm) WLP
Package
S For Applications Without Antenna Port, Use Pin-
Compatible 4-Bump MAX2686/MAX2687/MAX2688
LNA
Applications
Front-End SAW Modules
Receiver Modules
Cellular and Smartphones
Avionics and Military
Telematics (Asset Tracking and Management)
Personal Navigation Devices (PNDs)
Recreational, Marine Navigation
Ordering Information
PART
MAX2674EWT+T
MAX2676EWT+T
TEMP RANGE
-40NC to +85NC
-40NC to +85NC
PIN-PACKAGE
6 WLP
6 WLP
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Typical Operating Circuit
1.6V TO 3.6V
10pF
MAX2674
MAX2676
A1
A2
VCC
RFOUT/SHDN
OPTIONAL
100pF _88nH
B1
RFIN
ANT
BIAS
C1
GNDDC
B2
GNDAC
C2
ANT
100pF
25kI
RFOUT
SHDN
39pF
OPTIONAL
ACTIVE
ANTENNA
________________________________________________________________ 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.