RF/IF Amplifier. AD8352 Datasheet

AD8352 Amplifier. Datasheet pdf. Equivalent


Analog Devices AD8352
Data Sheet
FEATURES
−3 dB bandwidth of 2.2 GHz (AV = +10 dB)
Single resistor gain adjust: 3 dB ≤ AV ≤ 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 at 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 at 150 MHz
Slew rate: 8 V/ns
Fast settling and overdrive recovery of <2 ns
Single-supply operation: 3 V to 5.5 V
Low power dissipation: 37 mA typical at 5 V
Power-down capability: 5 mA at 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
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 performance
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. It is ideally
suited for driving not only ADCs but also mixers, pin diode
attenuators, surface acoustic wave (SAW) filters, and multi-
element discrete devices. The device is available in a compact
2 GHz, Ultralow Distortion,
Differential RF/IF Amplifier
AD8352
FUNCTIONAL BLOCK DIAGRAM
RG CD
ENB
RGP
RDP
VIP
RD
VIN
RDN
RGN
BIAS CELL
VCM
VCC
+
Figure 1.
VOP
VON
GND
AD8352
3 mm × 3 mm, 16-lead LFCSP and operates over a temperature
range of −40°C to +85°C.
–60 44
–65 42
–70 40
–75 38
–80 36
–85 34
–90 32
–95 30
–100
28
20 40 60 80 100 120 140 160 180 200 220
FREQUENCY (MHz)
Figure 2. Third Harmonic Distortion (HD3) and IP3 vs.
Frequency, Measured Differentially
Rev. C
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AD8352 Datasheet
Recommendation AD8352 Datasheet
Part AD8352
Description 2 GHz Ultra Low Distortion Differential RF/IF Amplifier
Feature AD8352; FEATURES −3 dB bandwidth of 2.2 GHz (AV = 10 dB) Single resistor gain adjust: 3 dB ≤ AV ≤ 25 dB Sing.
Manufacture Analog Devices
Datasheet
Download AD8352 Datasheet




Analog Devices AD8352
AD8352
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Noise Distortion Specifications .................................................. 4
Absolute Maximum Ratings............................................................ 6
ESD Caution.................................................................................. 6
Pin Configuration and Function Descriptions............................. 7
Typical Performance Characteristics ............................................. 8
Applications Information .............................................................. 11
REVISION HISTORY
4/2018—Rev. B to Rev. C
Changes to Figure 3 and Table 4..................................................... 7
Updated Outline Dimensions ....................................................... 19
Changes to Ordering Guide .......................................................... 19
7/2008—Rev. A to Rev. B
Changes to Features Section............................................................ 1
Changes to Figure 21...................................................................... 10
Changes to Table 9.......................................................................... 16
Added Soldering Information Section......................................... 16
Changes to Figure 38...................................................................... 17
Changes to Ordering Guide .......................................................... 19
Data Sheet
Gain and Distortion Adjustment (Differential Input) .......... 11
Single-Ended Input Operation ................................................. 12
Narrow-Band, Third-Order Intermodulation Cancellation. 13
High Performance ADC Driving ............................................. 14
Layout and Transmission Line Effects..................................... 15
Evaluation Board ............................................................................ 16
Evaluation Board Loading Schemes ........................................ 16
Soldering Information ............................................................... 16
Evaluation Board Schematics ................................................... 17
Outline Dimensions ....................................................................... 19
Ordering Guide .......................................................................... 19
9/2006—Rev. 0 to Rev. A
Changes to Absolute Maximum Ratings........................................6
Inserted Figure 10, Figure 11, and Figure 13 .................................9
Inserted Figure 17, Figure 18, and Figure 21 .............................. 10
Changes to Figure 34...................................................................... 14
Changes to Table 9.......................................................................... 16
Changes to Figure 38...................................................................... 18
Changes to Ordering Guide .......................................................... 19
1/2006—Revision 0: Initial Version
Rev. C | Page 2 of 19



Analog Devices AD8352
Data Sheet
AD8352
SPECIFICATIONS
VS = 5 V, RL = 200 Ω differential, RG = 118 Ω (AV = 10 dB), f = 100 MHz, T = 25°C; parameters specified differentially (in/out), unless
otherwise noted. CD and RD are selected for differential broadband operation (see Table 5 and Table 6).
Table 1.
Parameter
DYNAMIC PERFORMANCE
−3 dB Bandwidth
Bandwidth for 0.1 dB Flatness
Bandwidth for 0.2 dB Flatness
Gain Accuracy
Gain Supply Sensitivity
Gain Temperature Sensitivity
Slew Rate
Settling Time
Overdrive Recovery Time
Reverse Isolation (S12)
INPUT/OUTPUT CHARACTERISTICS
Common-Mode Nominal
Voltage Adjustment Range
Maximum Output Voltage Swing
Output Common-Mode Offset
Output Common-Mode Drift
Output Differential Offset Voltage
Common-Mode Rejection Ratio (CMRR)
Output Differential Offset Drift
Input Bias Current
Input Resistance
Input Capacitance (Single Ended)
Output Resistance
Output Capacitance
POWER INTERFACE
Supply Voltage
ENB Threshold
ENB Input Bias Current
Quiescent Current
Conditions
AV = 6 dB, VOUT ≤ 1.0 V p-p
AV = 10 dB, VOUT ≤ 1.0 V p-p
AV = 14 dB, VOUT ≤ 1.0 V p-p
3 dB ≤ AV ≤ 20 dB, VOUT ≤ 1.0 V p-p
3 dB ≤ AV ≤ 20 dB, VOUT ≤ 1.0 V p-p
Using 1% resistor for RG, 0 dB ≤ AV ≤ 20 dB
VS ± 5%
−40°C to +85°C
RL = 1 kΩ, VOUT = 2 V step
RL = 200 Ω, VOUT = 2 V step
2 V step to 1%
VIN = 4 V to 0 V step, VOUT ≤ ±10 mV
1 dB compressed
Referenced to VCC/2
−40°C to +85°C
−40°C to +85°C
ENB at 3 V
ENB at 0.6 V
ENB at 3 V
ENB at 0.6 V
Min Typ
Max Unit
2500
2200
1800
190
300
±1
0.06
4
9
8
<2
<3
−80
MHz
MHz
MHz
MHz
MHz
dB
dB/V
mdB/°C
V/ns
V/ns
ns
ns
dB
VCC/2
V
1.2 to 3.8
V
6 V p-p
−100
+20 mV
0.25 mV/°C
−20 +20 mV
57 dB
0.15 mV/°C
±5 µA
3 kΩ
0.9 pF
100 Ω
3 pF
35
1.5
75
−125
35 37
5.3
5.5 V
V
nA
µA
39 mA
mA
Rev. C | Page 3 of 19







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