Data Sheet
FEATURES
−11.5 dB to +20 dB gain range
0.5 dB
±
0.1 dB step size
150 Ω differential input and output
7.5 dB noise figure at maximum gain
OIP3 > 50 dBm at 200 MHz
−3 dB upper frequency bandwidth of 700 MHz
Multiple control interface options
Parallel 6-bit control interface (with latch)
Serial peripheral interface (SPI) (with fast attack)
Gain up/down mode
Wide input dynamic range
Low power mode option
Power-down control
Single 5 V supply operation
24-lead, 4 mm × 4 mm LFCSP package
Wide Dynamic Range, High Speed,
Digitally Controlled VGA
FUNCTIONAL BLOCK DIAGRAM
SPI WITH FA,
PARALLEL WITH LATCH,
UP/DOWN INTERFACE
VPOS GND PWUP
MODE0,
MODE1
LOGIC
VIN+
VIN–
150Ω
0dB TO 31.5dB
+20dB
150Ω
VOUT+
VOUT–
09388-001
PM
ADL5201
Figure 1.
APPLICATIONS
Differential ADC drivers
High IF sampling receivers
High output power IF amplification
Instrumentation
GENERAL DESCRIPTION
The
is a digitally controlled, variable gain, wide band-
width amplifier that provides precise gain control, high IP3, and
low noise figure. The excellent distortion performance and high
signal bandwidth make the
an excellent gain control
device for a variety of receiver applications. The
also
incorporates a low power mode option that lowers the supply
current.
For wide input dynamic range applications, the
provides
a broad 31.5 dB gain range with 0.5 dB resolution. The gain is
adjustable through multiple gain control interface options: parallel,
serial peripheral interface, and up/down.
Incorporating proprietary distortion cancellation techniques,
the
achieves an output IP3 of greater than 47 dBm at
frequencies approaching 200 MHz for most gain settings.
The
is powered on by applying the appropriate logic
level to the PWUP pin. The quiescent current of the
is typically 80 mA in low power mode. When configured in high
performance mode for more demanding applications, the quiescent
current is 110 mA. When powered down, the
consumes
less than 7 mA and offers excellent input-to-output isolation.
The gain setting is preserved during power-down.
Fabricated on an Analog Devices, Inc., high speed SiGe process,
the
provides precise gain adjustment capabilities with
good distortion performance and low phase error. The
amplifier comes in a compact, thermally enhanced, 24-lead,
4 mm × 4 mm LFCSP package and operates over the temperature
range of −40°C to +85°C.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2011 Analog Devices, Inc. All rights reserved.
AD [ ANALOG DEVICES ]
