Maxim MAX2666/MAX2668 low-noise amplifiers

Maxim has introduced the MAX2666/MAX2668 low-noise amplifiers for high-data-rate wireless protocols such as HSPA and LTE.

Each LNA features three programmable gain states, allowing users to dynamically adjust linearity and sensitivity to optimise system performance in the face of varying input-signal strengths.

If interference from adjacent signals is particularly high, as is often the case with mobile devices, the gain can be increased to maintain optimum blocker performance.

Ensuring peak system performance regardless of signal conditions, the devices are suitable for HSPA/LTE-based radio systems such as smartphones and tablets.

The company’s SiGe BiCMOS process enables these broadband LNAs to combine good performance characteristics with an ultra-compact footprint. They deliver 15 dB of gain; feature a low 1.0 dB noise figure for improved receive sensitivity over discrete or CMOS solutions; and operate over the I, IV, V, VI, VII, and X UMTS frequency bands.

The devices operate with 3.8 mA (typ) supply current and less than 100 µA in the lowest gain mode. They run off a 2.7 to 3.3 V supply.