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ADL5240

Part Number	ADL5240
Manufacturer	Analog Devices
Description	100 MHz to 4000 MHz RF/IF Digitally Controlled VGA
Published	Apr 12, 2012
Detailed Description	100 MHz to 4000 MHz RF/IF Digitally Controlled VGA ADL5240 FEATURES Operating frequency from 100 MHz to 4000 MHz Digital...
Datasheet	ADL5240 PDF File

Overview

100 MHz to 4000 MHz RF/IF Digitally Controlled VGA ADL5240 FEATURES 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 GENERAL DESCRIPTION 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.
Both the gain block and DSA are internally matched to 50 Ω at their inputs and outputs and are separately biased.
The separate bias allows all or part of the ADL5240 to be used, which facilitates easy reuse throughout a design.
The pinout of the ADL5240 also enables either the gain block or DSA to be first, giving the VGA maximum flexibility in a signal chain.
The ADL5240 consumes just 93 mA and operates from a single supply ranging from 4.
75 V to 5.
25 V.
The VGA is packaged in a thermally efficient, 5 mm × 5 mm, 32-lead LFCSP and is fully specified for operation from −40°C to +85°C.
A fully populated evaluation board is available.
APPLICATIONS Wireless infrastructure Automated test equipment RF/IF gain control www.
DataSheet.
co.
kr FUNCTIONAL BLOCK DIAGRAM D1/DATA D0/CLK D2/LE SEL D3 D4 D5 D6 25 32 31 30 29 28 27 26 VDD 1 SERIAL/PARALLEL INTERFACE NC...

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