The ADAR2004 is a 4-channel receiver IC that is optimized for
millimeter wave body scanning applications. Accepting differential
input signals from 10 GHz to 40 GHz, the ADAR2004 provides a
low intermediate frequency (IF) output up to 800 MHz. Each
receive channel also has independent gain control.
The mixer local oscillator (LO) path includes a 4× multiplier
requiring an applied LO frequency between 2.4 GHz and
10.1 GHz. The 4x multiplier block includes a programmable filter
that helps keep harmonics down before reaching the mixer.
Two programmable state machines are included to facilitate
simple configuration, control, and fast switching of the frequency
multiplier, filter, and receiver sections. These sequencers are
programmed through the serial peripheral interface (SPI) and
are then operated by pulsed inputs (reset and advance).
The ADAR2004 requires only a single 2.5 V supply with power
consumption of 910 mW with all channels turned on.
The ADAR2004 is available in a 7 x 7 mm, 48-terminal LGA
package and is specified from −40 C to +85 C.
