ADH8191S

The ADH8191S is a passive, wideband, in phase and quadrature (I/Q), monolithic microwave integrated circuit (MMIC) mixer that can be used either as an image rejection mixer for receiver operations or as a single sideband upconverter for transmitter operations. With an RF and local oscillator (LO) range of 6 GHz to 26.5 GHz, and an intermediate frequency (IF) bandwidth of DC to 5 GHz, the ADH8191S is ideal for applications requiring a wide frequency range, excellent RF performance, a simple design with fewer components, and a small, printed circuit board (PCB) footprint. A single ADH8191S can replace multiple narrow-band mixers in a design. The inherent I/Q architecture of the ADH8191S offers excellent image rejection of 29.5 dBc typical, eliminating the need for expensive filtering for unwanted sidebands. The mixer provides excellent LO to RF isolation of 43.5 dB typical, and LO to IF isolation of 42 dB typical. The mixer also reduces the effect of LO leakage to ensure signal integrity. As a passive mixer, the ADH8191S does not require any dc power sources. The device offers a lower noise figure compared to an active mixer, ensuring optimal dynamic range for high performance and precision applications. The ADH8191S is fabricated on a gallium arsenide (GaAs), metal semiconductor field effect transistor (MESFET) process and uses Analog Devices, Inc., mixer cells and a 90° hybrid.

Applications

• Test and measurement instrumentation
• Microwave point-to-point
• Military & Space