Data Sheet 100 MHz to 4000 MHz
RF/IF Digitally Controlled VGA
ADL5240 FEATURES GENERAL DESCRIPTION Operating frequency from 100 MHz to 4000 MHz
Digitally controlled VGA with serial and parallel interfaces
6-bit, 0.5 dB digital step attenuator
31.5 dB gain control range with ±0.25 dB step accuracy
Gain block amplifier specifications
Gain: 19.7 dB at 2.14 GHz
OIP3: 41.0 dBm at 2.14 GHz
P1dB: 19.5 dBm at 2.14 GHz
Noise figure: 2.9 dB at 2.14 GHz
Gain block or digital step attenuator can be first
Single supply operation from 4.75 V to 5.25 V
Low quiescent current of 93 mA
Thermally efficient, 5 mm × 5 mm, 32-lead LFCSP
The companion ADL5243 integrates a ¼ W driver amplifier to
the output of the gain block and DSA The ADL5240 is a high performance, digitally controlled variable
gain amplifier (VGA) operating from 100 MHz to 4000 MHz.
The VGA integrates a high performance, 20 dB gain, internally
matched amplifier (AMP) with a 6-bit digital step attenuator
(DSA) that has a gain control range of 31.5 dB in 0.5 dB steps
with ±0.25 dB step accuracy. The attenuation of the DSA can be
controlled using a serial or parallel interface. …