Overview
The MAX2659ELT+T is a high-gain, low-noise amplifier (LNA) designed by Maxim Integrated, now part of Analog Devices. This device is specifically tailored for GPS, Galileo, and GLONASS applications. It is fabricated using Maxim’s advanced SiGe process, which enables it to achieve a 20.5dB gain and an ultra-low noise figure of 0.8dB. The MAX2659ELT+T is optimized for maximizing the input-referred 1dB compression point and the 3rd-order intercept point, making it an ideal choice for various navigation and location-enabled devices.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain | 20.5 | dB |
| Noise Figure | 0.8 | dB |
| Supply Voltage Range | 1.6 to 3.6 | V |
| Supply Current | 4.1 | mA |
| Shutdown Supply Current | < 1 | μA |
| Input 1dB Compression Point | -12 | dBm |
| 3rd-Order Intercept Point | -5 | dBm |
| Package Type | 6-pin μDFN | - |
| Package Dimensions | 1.5mm x 1.0mm x 0.75mm | - |
| Operating Temperature Range | -40°C to +85°C | - |
| ESD Protection | ±2500V HBM | - |
Key Features
- Ultra-Low Noise Figure: Achieves a noise figure of 0.8dB, enhancing system performance.
- High Gain: Provides a gain of 20.5dB, suitable for GPS, Galileo, and GLONASS applications.
- Wide Supply Voltage Range: Operates from a single supply of 1.6V to 3.6V.
- Low Power Consumption: Consumes only 4.1mA, with a shutdown mode reducing current to less than 1μA.
- Integrated Output Matching: Includes an on-chip 50Ω output matching circuit, eliminating the need for external components.
- Small Footprint: Available in a compact, lead-free, RoHS-compliant 6-pin μDFN package.
- AEC-Q100 Qualified: Suitable for automotive applications (MAX2659ELT/V+ only).
- ESD Protection: Offers ±2500V ESD protection (Human Body Model).
Applications
- Automotive Navigation: Ideal for in-vehicle GPS and navigation systems.
- Location-Enabled Mobile Devices: Suitable for smartphones and tablets with GPS capabilities.
- Telematics: Used in asset tracking and management systems.
- Personal Navigation Devices (PND): Enhances performance in handheld GPS devices.
- Cellular Phones with GPS: Improves GPS signal reception in mobile phones.
- Notebook PC/Ultra-Mobile PC: Used in mobile computing devices with GPS functionality.
- Recreational and Marine Navigation: Suitable for GPS devices used in recreational and marine environments.
- Avionics: Used in aviation navigation systems.
Q & A
- What is the primary application of the MAX2659ELT+T?
The MAX2659ELT+T is primarily designed for GPS, Galileo, and GLONASS applications.
- What is the gain and noise figure of the MAX2659ELT+T?
The device achieves a gain of 20.5dB and an ultra-low noise figure of 0.8dB.
- What is the supply voltage range of the MAX2659ELT+T?
The device operates from a single supply of 1.6V to 3.6V.
- How much current does the MAX2659ELT+T consume?
The device consumes approximately 4.1mA, and less than 1μA in shutdown mode.
- What is the package type and dimensions of the MAX2659ELT+T?
The device is available in a 6-pin μDFN package with dimensions of 1.5mm x 1.0mm x 0.75mm.
- Is the MAX2659ELT+T AEC-Q100 qualified?
Yes, the MAX2659ELT/V+ version is AEC-Q100 qualified for automotive applications.
- What kind of ESD protection does the MAX2659ELT+T offer?
The device offers ±2500V ESD protection (Human Body Model).
- Does the MAX2659ELT+T require external output matching components?
No, the device integrates an on-chip 50Ω output matching circuit.
- What are some common applications of the MAX2659ELT+T?
Common applications include automotive navigation, location-enabled mobile devices, telematics, personal navigation devices, and avionics.
- How does the shutdown feature of the MAX2659ELT+T work?
The shutdown feature reduces the supply current to less than 1μA, eliminating the need for an external supply switch.
