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PDF ADL5201 Data sheet ( Hoja de datos )
| Número de pieza | ADL5201 | |
| Descripción | Digitally Controlled VGA | |
| Fabricantes | Analog Devices | |
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Data Sheet
Wide Dynamic Range, High Speed,
Digitally Controlled VGA
ADL5201
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
APPLICATIONS
Differential ADC drivers
High IF sampling receivers
High output power IF amplification
Instrumentation
GENERAL DESCRIPTION
The ADL5201 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 ADL5201 an excellent gain control
device for a variety of receiver applications. The ADL5201 also
incorporates a low power mode option that lowers the supply
current.
For wide input dynamic range applications, the ADL5201 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 ADL5201 achieves an output IP3 of greater than 47 dBm at
frequencies approaching 200 MHz for most gain settings.
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–
PM ADL5201
Figure 1.
The ADL5201 is powered on by applying the appropriate logic
level to the PWUP pin. The quiescent current of the ADL5201
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 ADL5201 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 ADL5201 provides precise gain adjustment capabilities with
good distortion performance and low phase error. The ADL5201
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
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.
1 page  
Data Sheet
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Supply Voltage, VPOS
PWUP, A0 to A5, MODE0, MODE1, PM, LATCH
Input Voltage, VIN+ and VIN−
Internal Power Dissipation
θJA (Exposed Paddle Soldered Down)
θJC (at Exposed Paddle)
Maximum Junction Temperature
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 60 sec)
Rating
5.5 V
3.6 V
+3.6 V to −1.2 V
676.5 mW
37.16°C/W
2.29°C/W
140°C
–40°C to +85°C
–65°C to +150°C
240°C
ADL5201
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ESD CAUTION
Rev. 0 | Page 5 of 28
5 Page 
Data Sheet
–50 –11.5dB
–60
0dB
+10dB
+20dB
–70
–20
–30
–40
–80 –50
–90 –60
–100
–70
–110
–80
–120
–90
–130
–100
–140
–110
–150
0
–120
50 100 150 200 250 300 350
FREQUENCY (MHz)
Figure 30. Harmonic Distortion vs. Frequency at Four Gain Codes,
Low Power Mode
–50
TA = –40°C
–60 TA = +25°C
TA = +85°C
–70
–20
–30
–40
–80 –50
–90 –60
–100
–70
–110
–80
–120
–90
–130
–100
–140
–150
0
–110
–120
50 100 150 200 250 300 350
FREQUENCY (MHz)
Figure 31. Harmonic Distortion vs. Frequency, Three Temperatures,
Low Power Mode
CH4 1mV/DIV
CH1 200mV/DIV
TIME (10ns/DIV)
Figure 32. Enable Time Domain Response
ADL5201
–60
–11.5dB
0dB
–70 +10dB
+20dB
–80
–40
–50
–60
–90 –70
–100
–80
–110
–90
–120
–100
–130
–110
–140
–120
–6 –5 –4 –3 –2 –1 0 1 2 3 4 5 6
POUT (dBm)
Figure 33. Harmonic Distortion vs. Power at Four Gain Codes,
Frequency = 140 MHz, Low Power Mode
–70
TA = –40°C
TA = +25°C
–80 TA = +85°C
–50
–60
–90 –70
–100
–80
–110
–90
–120
–100
–130
–110
–6 –5 –4 –3 –2 –1 0 1 2 3 4 5 6
POUT (dBm)
Figure 34. Harmonic Distortion vs. Power, Frequency = 140 MHz,
Three Temperatures, Low Power Mode
CH1 200mV/DIV
CH4 1V/DIV
TIME (10ns/DIV)
Figure 35. Disable Time Domain Response
Rev. 0 | Page 11 of 28
11 Page | ||
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| PDF Descargar | [ Datasheet ADL5201.PDF ] | |
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