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AD8352ACPZ-WP Datasheet(Hoja de datos) 1 Page - Analog Devices

No. de Pieza. AD8352ACPZ-WP
Descripción  2 GHz Ultralow Distortion Differential RF/IF Amplifier
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Fabricante  AD [Analog Devices]
Página de inicio  http://www.analog.com
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2 GHz Ultralow Distortion
Differential RF/IF Amplifier
AD8352
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.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
©2006 Analog Devices, Inc. All rights reserved.
FEATURES
−3 dB bandwidth of 2.2 GHz (AV = 10 dB)
Single resistor gain adjust: 3 dB
≤ A
V
≤ 25 dB
Single resistor and capacitor distortion adjust
Input resistance: 3 kΩ, independent of gain (AV)
Differential or single-ended input to differential output
Low noise input stage: 2.7 nV/√Hz RTI @ AV = 10 dB
Low broadband distortion
10 MHz: −86 dBc HD2, −82 dBc HD3
70 MHz: −84 dBc HD2, −82 dBc HD3
190 MHz: −81 dBc HD2, −87 dBc HD3
OIP3 of 41 dBm @ 150 MHz
Slew rate: 8 V/ns
Fast settling and overdrive recovery of 2 ns
Single-supply operation: 3 V to 5.0 V
Low power dissipation: 37 mA @ 5 V
Power down capability: 5 mA @ 5 V
Fabricated using the high speed XFCB3 SiGe process
APPLICATIONS
Differential ADC drivers
Single-ended to differential conversion
RF/IF gain blocks
SAW filter interfacing
FUNCTIONAL BLOCK DIAGRAM
ENB
VCM
VOP
VON
GND
RGP
RDP
RDN
RGN
VIP
VIN
BIAS CELL
VCC
CD
RD
RG
AD8352
+
Figure 1.
–60
–100
20
220
FREQUENCY (MHz)
–65
–70
–75
–80
–85
–90
–95
44
28
42
40
38
36
34
32
30
40
60
80
100
120
140
160
180
200
Figure 2. IP3 and Third Harmonic Distortion vs. Frequency,
Measured Differentially
GENERAL DESCRIPTION
The AD8352 is a high performance differential amplifier
optimized for RF and IF applications. It achieves better than
80 dB SFDR performance at frequencies up to 200 MHz, and
65 dB beyond 500 MHz, making it an ideal driver for high
speed 12-bit to 16-bit analog-to-digital converters (ADCs).
Unlike other wideband differential amplifiers, the AD8352 has
buffers that isolate the gain setting resistor (RG) from the signal
inputs. As a result, the AD8352 maintains a constant 3 kΩ input
resistance for gains of 3 dB to 25 dB, easing matching and input
drive requirements. The AD8352 has a nominal 100 Ω differential
output resistance.
The device is optimized for wideband, low distortion perform-
ance at frequencies beyond 500 MHz. These attributes, together
with its wide gain adjust capability, make this device the amplifier
of choice for general-purpose IF and broadband applications
where low distortion, noise, and power are critical. In particular,
it is ideally suited for driving not only ADCs, but also mixers,
pin diode attenuators, SAW filters, and multielement discrete
devices. The device is available in a compact 3 mm × 3 mm,
16-lead LFCSP package and operates over a temperature range
of −40°C to +85°C.




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