MAX2686/MAX2688 are low-noise amplifiers (LNAs) designed for GPS L1, Galileo, and GLONASS applications. 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 and MAX2688 are low‑noise amplifiers (LNAs) designed for GPS L1, Galileo, and GLONASS applications. They operate from a single‑supply voltage of 1.6 V to 3.3 V and are available in a tiny 0.86 mm × 0.86 mm × 0.65 mm wafer‑level package (WLP). Typical applications include automotive navigation, telematics, personal navigation devices, cellular phones with GPS, and notebook PCs.
Key features include a high gain of 19 dB (MAX2686) or 15 dB (MAX2688), ultra‑low noise figures of 0.75 dB (MAX2686) and 0.8 dB (MAX2688), an optional shutdown mode that reduces supply current to less than 10 µA, and a low bill‑of‑materials design requiring only one inductor and two capacitors. The devices provide integrated 50 Ω output matching and are RoHS‑compliant.
| Gain (MAX2686) | 19 dB |
|---|---|
| Gain (MAX2688) | 15 dB |
| Noise Figure (MAX2686) | 0.75 dB |
| Noise Figure (MAX2688) | 0.8 dB |
| Supply Voltage Range | 1.6 V to 3.3 V |
| Typical Supply Current | 4.1 mA |
| Package Dimensions | 0.86 mm × 0.86 mm × 0.65 mm (WLP) |
Both devices operate from a single supply of 1.6 V to 3.3 V.
The MAX2686 provides a high gain of 19 dB.
Apply a logic‑low to the RFOUT (SHDN) bump, typically through a resistor such as 25 kΩ, to place the part in shutdown mode.
Both parts are offered in a 4‑bump wafer‑level package (WLP) with dimensions 0.86 mm × 0.86 mm × 0.65 mm.