Maxim GPS LNAs extend receive sensitivity, read range

maximmax2667Sunnyvale, Calif. — Maxim Integrated Products has added the MAX2667 and MAX2669 to its GPS/GNSS low-noise amplifier (LNA) family. Designed using Maxim’s advanced SiGe processes, these fully integrated LNAs feature an exceptionally low noise figure of 0.65 dB, said Maxim. This improves receive sensitivity and read range over discrete or highly integrated CMOS solutions.

Maxim touts that the MAX2667 and MAX2669 LNAs provide the best performance, smallest size, and lowest current consumption available in the market, making them suitable for smart phones, personal navigation devices (PNDs), and other battery-powered handheld devices.

These devices provide different linearity options to suit system requirements. For customers who wish to ensure a higher level of receive performance in the presence of signal blockers, the MAX2669 (at 4.5dBm) provides approximately 8dBm better in-band and out-of-band IIP3 than the MAX2667 (at -3.5dBm), for only a 4.0 mA extra supply current.

For power efficiency, customers can expect longer battery life in their end-equipment design thanks to the MAX2667, which is optimized for a low operating supply current of 4 mA (typ), said Maxim. When not in use, both LNAs have an optional logic-enabled shutdown mode that reduces supply current to less than 1microamp.

These LNAs are offered in a space-saving, 0.4-mm-pitch wafer-level package (WLP) that takes up 1 mm2 of board space. The devices only require four external components to complete the board-level design (plus an optional resistor for logic-enabled shutdown).

The devices are available in an ultra-small, 0.86 x 1.26-mm, 6-pin WLP, and operate from a 1.6-V to 3.3-V supply. The devices are fully specified over a -40°C to +85°C extended temperature range.

Pricing: Starts at $0.54 (1000-up, FOB USA). The MAX2667EVKIT and MAX2669EVKIT are also available for bench-level evaluation. Pricing for the EV kits is $110.00 (each, FOB USA).
Resources: MAX2667 datasheet.