MAX2678GTB/V+ by Analog Devices

GPS/GNSS Front-End Amplifier


The MAX2678 GPS/GNSS front-end amplifier IC is designed for automotive and marine GPS/GNSS satellite navigation antenna modules, or for any application that needs to compensate for cable losses from the antenna to receiver. Two unconditionally stable low-noise amplifier stages provide the high gain and integrated I/O matching to minimize the need for external matching components and eliminate the need for additional gain stages. The IC features the option to place a bandpass ceramic or surface acoustic wave (SAW) filter between the two amplifier stages for improved immunity to out-of-band interferers. Additionally, a 3.4dB-gain step is provided to compensate for cable loss variation between different applications. The device is designed to operate across all GNSS frequency standards with a 35dB typical cascaded gain and a 25mA supply current. The two LNA stages allow the use of a wide range of GNSS filter types for maximum flexibility in system design. The final RF output pin, which drives the cable to the GNSS receiver, is also the power-supply connection that accepts a DC supply in the 3.0V to 5.25V range. Alternatively, the DC supply can be applied to pin 4. This GPS/GNSS front-end amplifier is available in a lead-free, 10-pin TDFN surface-mount package (3mm × 3mm). Electrical performance is guaranteed over the extended -40°C to +105°C temperature range.

Where to Buy

Prices starting from US$2.31

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Features

First Amplifier Noise Figure: 0.9dB
High Gain:* 35dB
3.4dB Gain Step
Shared VCC and RFOUT2 Pin
Integrated 50Ω Output Matching
AMP 2 includes 50Ω Input Matching
3.0V to 5.25V Supply Voltage Range
Small (3mm × 3mm) Low-Cost Package
AEC-Q100 Qualified
ESD Protected to ±2kV Human Body Model
-40°C to +105°C Ambient Temperature Range

Specifications

RF Freq. (MHz) (min) 1575
RF Freq. (MHz) (max) 1575
Gain (dB) 34.8
Noise Figure (dB) 1
Input IP3 (dBm) -12
OIP3 (dBm) 5
ISUPPLY (mA) 25
Footprint (mm x mm) 3.0 x 3.0
Package/Pins TDFN/10
BudgetaryPrice (See Notes) 1.27


MAX2678GTB/V+ Semiconductors - ICs by Analog Devices

GPS/GNSS FRONT-END AMPLIFIER TDFN-10

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Frequency Min -
Frequency Max -
Gain 17dB
Noise Figure Typ 0.9dB
RF IC Case Style TDFN
No. of Pins 10Pins
Supply Voltage Min 3V
Supply Voltage Max 5.2V
Operating Temperature Min -40°C
Operating Temperature Max 105°C
Product Range -
Automotive Qualification Standard AEC-Q100
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

GPS/GNSS FRONT-END AMPLIFIER, TDFN-10 | Farnell

Frequently Asked Questions

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Is the MAX2678GTB/V+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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