Hittite Adds Two Variable Gain Amplifiers for Wideband Applications

The HMC742HFLP5E is a wideband digitally controlled 6-bit variable gain amplifier which operates from 500 MHz to 4 GHz and can be programmed to provide from 19 dB attenuation to 12.5 dB of gain, with 0.5 dB resolution. This Digital VGA delivers noise figure of 4 dB in its maximum gain state with output IP3 of up to +39 dBm in any state. The dual mode gain control interface is CMOS/TTL compatible and accepts either a three-wire serial input or a 6 bit parallel word. The HMC742HFLP5E also features user selectable power-up states and a serial output for cascading other Hittite serially controlled components.

The HMC625HFLP5E is a wideband digitally controlled variable gain amplifier which operates from 500 MHz to 6 GHz and can be programmed to provide anywhere from 13.5 dB attenuation to 18 dB of gain, in 0.5 dB steps. This Digital VGA delivers noise figure of 6 dB in its maximum gain state with output IP3 of up to +33 dBm in any state. The dual mode control interface is CMOS/TTL compatible and accepts either a three wire serial input or a 6 bit parallel word. The HMC625HFLP5E also features user selectable power-up states and a serial output port for cascading other Hittite serial controlled components.

The HMC742HFLP5E and HMC625HFLP5E are housed in RoHS compliant 5 x 5 mm QFN leadless packages, and require no external matching components. Samples and evaluation PC boards for all SMT packaged products are available from stock and can be ordered via the company's e-commerce site or via direct purchase order. Released data sheets are available on-line at www.hittite.com.

Hittite Microwave Corporation is an innovative designer and manufacturer of high performance integrated circuits, or ICs, modules, subsystems and instrumentation for technically demanding digital, RF, microwave and millimeterwave applications covering DC to 110 GHz. The Company's standard and custom products apply analog, digital and mixed-signal semiconductor technologies, which are used in a wide variety of wireless / wired communication and sensor applications for Automotive, Broadband, Cellular Infrastructure, Fiber Optics, Microwave & Millimeterwave Communications, Military, Test & Measurement, and Space markets.