ANALOG DEVICES ADL5562 Service Manual
3.3 GHz Ultralow Distortion
V
V
V
FEATURES
−3 dB bandwidth of 3.3 GHz (AV = 6 dB)
Pin-strappable gain adjust: 6 dB, 12 dB, 15.5 dB
Differential or single-ended input to differential output
Low noise input stage: 2.1 nV/√Hz RTI @ A
Low broadband distortion (Av = 6 dB)
10 MHz: −91 dBc HD2, −98 dBc HD3
70 MHz: −102 dBc HD2, −90 dBc HD3
140 MHz: −104 dBc HD2, −87 dBc HD3
250 MHz: −80 dBc HD2, −94 dBc HD3
IMD3s of −94 dBc at 250 MHz center
Slew rate: 9.8 V/ns
Fast settling of 2 ns and overdrive recovery of 3 ns
Single-supply operation: 3 V to 3.6 V
Power-down control
Fabricated using the high speed XFCB3 SiGe process
APPLICATIONS
Differential ADC drivers
Single-ended to differential conversion
RF/IF gain blocks
SAW filter interfacing
= 12 dB
V
RF/IF Differential Amplifier
ADL5562
FUNCTIONAL BLOCK DIAGRAM
CC
R
F
ENBL
VON
VCOM
VOP
08003-001
VIP2
VIP1
IN1
IN2
R
G2
R
G1
R
G1
R
G2
R
F
ADL5562
GND
Figure 1.
GENERAL DESCRIPTION
The ADL5562 is a high performance differential amplifier
optimized for RF and IF applications. The amplifier offers low
noise of 2.1 nV/√Hz and excellent distortion performance over
a wide frequency range, making it an ideal driver for high speed
8-bit to 16-bit ADCs.
The ADL5562 provides three gain levels of 6 dB, 12 dB, and
15.5 dB through a pin-strappable configuration. For the singleended input configuration, the gains are reduced to 5.6 dB,
11.1 dB, and 14.1 dB. Using an external series input resistor
expands the amplifier gain flexibility and allows for any gain
selection from 0 dB to 15.5 dB.
The quiescent current of the ADL5562 is typically 80 mA and,
when disabled, consumes less than 3 mA, offering excellent
input-to-output isolation.
Rev. C
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.
The device is optimized for wideband, low distortion performance.
These attributes, together with its adjustable gain capability,
make this device the amplifier of choice for general-purpose IF
and broadband applications where low distortion, noise, and power
are critical. This device is optimized for the best combination of
slew speed, bandwidth, and broadband distortion. These attributes
allow it to drive a wide variety of ADCs and make it ideally suited
for driving mixers, pin diode attenuators, SAW filters, and multielement discrete devices.
Fabricated on an Analog Devices, Inc., high speed SiGe process,
the ADL5562 is supplied in a compact 3 mm × 3 mm, 16-lead
LFCSP package and operates over the temperature range of
−40°C to + 85°C.
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 ©2009–2011 Analog Devices, Inc. All rights reserved.
ADL5562
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 6
ESD Caution .................................................................................. 6
Pin Configuration and Function Descriptions ............................. 7
Typical Performance Characteristics ............................................. 8
Circuit Description ......................................................................... 13
Basic Structure ............................................................................ 13
REVISION HISTORY
7/11—Rev. B to Rev. C
Changes to Figure 28 and Figure 29 ............................................. 12
Added Figure 30 and Figure 31; Renumbered Sequentially ..... 12
Changes to Ordering Guide .......................................................... 21
3/10—Rev. A to Rev. B
Changes to Figure 43 ...................................................................... 19
Updated Outline Dimensions ....................................................... 21
Changes to Ordering Guide .......................................................... 21
9/09—Rev. 0 to Rev. A
Changes to Features Section............................................................ 1
Changes to Table 1 ............................................................................ 3
Changes to Figure 5 .......................................................................... 8
Changes to Figure 9 and Figure 10 ................................................. 9
Changes to Figure 32, Equation 1, and Figure 34 ...................... 15
Changes to Equation 2 ................................................................... 16
Changes to Figure 38, Figure 39, Figure 40, and Table 9 ........... 17
Changes to Figure 43 ...................................................................... 19
Moved Table 14 to........................................................................... 19
5/09—Revision 0: Initial Version
Applications Information .............................................................. 14
Basic Connections ...................................................................... 14
Input and Output Interfacing ................................................... 15
Gain Adjustment and Interfacing ............................................ 16
ADC Interfacing ......................................................................... 16
Layout Considerations ............................................................... 18
Soldering Information ............................................................... 19
Evaluation Board ........................................................................ 19
Outline Dimensions ....................................................................... 21
Ordering Guide .......................................................................... 21
Rev. C | Page 2 of 24
ADL5562
AV = 15.5 dB, V
≤ 1.0 V p-p
270 MHz
Maximum Output Voltage Swing
1 dB compressed
4.9 V p-p
SPECIFICATIONS
VCC = 3.3 V, VCOM = 1.65 V, RL = 200 Ω differential, AV = 6 dB, CL = 1 pF differential, f = 140 MHz, TA = 25°C.
Table 1.
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Bandwidth AV = 6 dB, V
AV = 12 dB, V
AV = 15.5 dB, V
Bandwidth for 0.1 dB Flatness AV = 6 dB, V
AV = 12 dB, V
Gain Accuracy AV = 6 dB, RL = open 0.17 dB
AV = 12 dB, RL = open 0.05 dB
AV = 15.5 dB, RL = open 0.06 dB
Gain Supply Sensitivity VCC ± 5% −0.005 dB/V
Gain Temperature Sensitivity −40°C to +85°C, AV = 15.5 dB 0.32 mdB/°C
Slew Rate Rise, AV = 15.5 dB, RL = 200 Ω, V
Fall, AV = 15.5 dB, RL = 200 Ω, V
Settling Time 2 V step to 1% 2 ns
Overdrive Recovery Time VIN = 4 V to 0 V step, V
Reverse Isolation (S12) 60 dB
INPUT/OUTPUT CHARACTERISTICS
Output Common Mode VCC/2 V
Voltage Adjustment Range 1.4 to 1.8 V
≤ 1.0 V p-p 3300 MHz
OUT
≤ 1.0 V p-p 3900 MHz
OUT
≤ 1.0 V p-p 1900 MHz
OUT
≤ 1.0 V p-p 220 MHz
OUT
≤ 1.0 V p-p 270 MHz
OUT
OUT
= 2 V step 9.8 V/ns
OUT
= 2 V step 10.1 V/ns
OUT
≤ ±10 mV 3 ns
OUT
Output Common-Mode Offset Referenced to VCC/2 60 mV
Output Common-Mode Drift −40°C to +85°C 285 µV/°C
Output Differential Offset Voltage 1 mV
CMRR 65 dB
Output Differential Offset Drift −40°C to +85°C 15 µV/°C
Input Bias Current 3 µA
Input Resistance (Differential) AV = 6 dB 400 Ω
AV = 12 dB 200 Ω
AV = 15.5 dB 133 Ω
Input Resistance (Single-Ended)1 AV = 5.6 dB, RS = 50 Ω 307 Ω
AV = 11.1 dB, RS = 50 Ω 179 Ω
AV = 14.1 dB, RS = 50 Ω 132 Ω
Input Capacitance (Single-Ended) 0.3 pF
Output Resistance (Differential) 12 Ω
POWER INTERFACE
Supply Voltage 3 3.3 3.6 V
ENBL Threshold Device disabled, ENBL low 0.6 V
Device enabled, ENBL high 1.3 V
ENBL Input Bias Current ENBL high −27 µA
ENBL low −300 µA
Quiescent Current ENBL high 75.5 80 84.5 mA
ENBL low 3.5 mA
Rev. C | Page 3 of 24
ADL5562
Output Third-Order Intercept/Third-Order
AV = 6 dB, RL = 200 Ω, V
= 2 V p-p composite
+42/−97
dBm/dBc
Second/Third Harmonic Distortion
AV = 6 dB, RL = 200 Ω, V
= 2 V p-p
−102/−90
dBc
AV = 15.5 dB
18.1 dBm
Parameter Conditions Min Typ Max Unit
10 MHz NOISE/HARMONIC PERFORMANCE
Second/Third Harmonic Distortion AV = 6 dB, RL = 200 Ω, V
AV = 12 dB, RL = 200 Ω, V
AV = 15.5 dB, RL = 200 Ω, V
Intermodulation Distortion
(2 MHz spacing)
AV = 12 dB, RL = 200 Ω, V
(2 MHz spacing)
AV = 15.5 dB, RL = 200 Ω, V
(2 MHz spacing)
Noise Spectral Density (RTI) AV = 6 dB 3 nV/√Hz
AV = 12 dB 2.1 nV/√Hz
AV = 15.5 dB 1.6 nV/√Hz
1 dB Compression Point (RTO) AV = 6 dB 19.7 dBm
AV = 12 dB 19.6 dBm
AV = 15.5 dB 18.2 dBm
70 MHz NOISE/HARMONIC PERFORMANCE
AV = 12 dB, RL = 200 Ω, V
AV = 15.5 dB, RL = 200 Ω, V
Output Third-Order Intercept/Third-Order
Intermodulation Distortion
AV = 6 dB, RL = 200 Ω, V
(2 MHz spacing)
AV = 12 dB, RL = 200 Ω, V
(2 MHz spacing)
AV = 15.5 dB, RL = 200 Ω, V
(2 MHz spacing)
Noise Spectral Density (RTI) AV = 6 dB 3 nV/√Hz
AV = 12 dB 2.1 nV/√Hz
AV = 15.5 dB 1.6 nV/√Hz
1 dB Compression Point (RTO) AV = 6 dB 19.6 dBm
AV = 12 dB 19.6 dBm
AV = 15.5 dB 18.2 dBm
140 MHz NOISE/HARMONIC PERFORMANCE
Second/Third Harmonic Distortion AV = 6 dB, RL = 200 Ω, V
AV = 12 dB, RL = 200 Ω, V
AV = 15.5 dB, RL = 200 Ω, V
Output Third-Order Intercept/Third-Order
Intermodulation Distortion
AV = 6 dB, RL = 200 Ω, V
(2 MHz spacing)
AV = 12 dB, RL = 200 Ω, V
(2 MHz spacing)
AV = 15.5 dB, RL = 200 Ω, V
(2 MHz spacing)
Noise Spectral Density (RTI) AV = 6 dB 3 nV/√Hz
AV = 12 dB 2.1 nV/√Hz
AV = 15.5 dB 1.6 nV/√Hz
1 dB Compression Point (RTO) AV = 6 dB 19.6 dBm
AV = 12 dB 19.4 dBm
= 2 V p-p −91/−98 dBc
OUT
= 2 V p-p −95/−98 dBc
OUT
= 2 V p-p −96/−92 dBc
OUT
OUT
= 2 V p-p composite
OUT
= 2 V p-p composite
OUT
OUT
= 2 V p-p −97/−85 dBc
OUT
= 2 V p-p −93/−83 dBc
OUT
= 2 V p-p composite
OUT
= 2 V p-p composite
OUT
= 2 V p-p composite
OUT
= 2 V p-p −104/−87 dBc
OUT
= 2 V p-p −82/−81 dBc
OUT
= 2 V p-p −80/−80 dBc
OUT
= 2 V p-p composite
OUT
= 2 V p-p composite
OUT
= 2 V p-p composite
OUT
+43/−93 dBm/dBc
+43/−91 dBm/dBc
+46/−96 dBm/dBc
+44/−93 dBm/dBc
+43/−91 dBm/dBc
+47/−100 dBm/dBc
+45/−95 dBm/dBc
+43/−92 dBm/dBc
Rev. C | Page 4 of 24
ADL5562
Output Third-Order Intercept/Third-Order
AV = 6 dB, RL = 200 Ω, V
= 2 V p-p composite
+43/−94
dBm/dBc
AV = 12 dB, RL = 200 Ω, V
= 1 V p-p
−69/−73
dBc
AV = 12 dB, RL = 200 Ω, V
= 1 V p-p composite
+24/−66
dBm/dBc
Parameter Conditions Min Typ Max Unit
250 MHz NOISE/HARMONIC PERFORMANCE
Second/Third Harmonic Distortion AV = 6 dB, RL = 200 Ω, V
AV = 12 dB, RL = 200 Ω, V
AV = 15.5 dB, RL = 200 Ω, V
Intermodulation Distortion
(2 MHz spacing)
AV = 12 dB, RL = 200 Ω, V
(2 MHz spacing)
AV = 15.5 dB, RL = 200 Ω, V
(2 MHz spacing)
Noise Spectral Density (RTI) AV = 6 dB 3.2 nV/√Hz
AV = 12 dB 2.2 nV/√Hz
AV = 15.5 dB 1.6 nV/√Hz
1 dB Compression Point (RTO) AV = 6 dB 19.8 dBm
AV = 12 dB 19.3 dBm
AV = 15.5 dB 19.1 dBm
500 MHz NOISE/HARMONIC PERFORMANCE
Second/Third Harmonic Distortion AV = 6 dB, RL = 200 Ω, V
AV = 15.5 dB, RL = 200 Ω, V
Output Third-Order Intercept/Third-Order
Intermodulation Distortion
AV = 6 dB, RL = 200 Ω, V
(2 MHz spacing)
AV = 12 dB, RL = 200 Ω, V
(2 MHz spacing)
AV = 15.5 dB, RL = 200 Ω, V
(2 MHz spacing)
Noise Spectral Density (RTI) AV = 6 dB 3.7 nV/√Hz
AV = 12 dB 2.2 nV/√Hz
AV = 15.5 dB 1.6 nV/√Hz
1 dB Compression Point (RTO) AV = 6 dB 18.1 dBm
AV = 12 dB 18.1 dBm
AV = 15.5 dB 18.1 dBm
1000 MHz NOISE/HARMONIC PERFORMANCE
Second/Third Harmonic Distortion AV = 6 dB, RL = 200 Ω, V
AV = 12 dB, RL = 200 Ω, V
AV = 15.5 dB, RL = 200 Ω, V
Output Third-Order Intercept/Third-Order
Intermodulation Distortion
AV = 6 dB, RL = 200 Ω, V
(2 MHz spacing)
(2 MHz spacing)
AV = 15.5 dB, RL = 200 Ω, V
(2 MHz spacing)
Noise Spectral Density (RTI) AV = 6 dB 4.7 nV/√Hz
AV = 12 dB 2.2 nV/√Hz
AV = 15.5 dB 1.6 nV/√Hz
1 dB Compression Point (RTO) AV = 6 dB 15 dBm
AV = 12 dB 15.1 dBm
AV = 15.5 dB 15.1 dBm
1
See the Applications Information section for a discussion of single-ended input, dc-coupled operation.
= 2 V p-p −80/−94 dBc
OUT
= 2 V p-p −74/−86 dBc
OUT
= 2 V p-p −74/−84 dBc
OUT
OUT
= 2 V p-p composite
OUT
= 2 V p-p composite
OUT
= 1 V p-p −75/−69 dBc
OUT
OUT
= 1 V p-p −72/−75 dBc
OUT
= 1 V p-p composite
OUT
= 1 V p-p composite
OUT
= 1 V p-p composite
OUT
= 1 V p-p −70/−60 dBc
OUT
= 1 V p-p −69/−61 dBc
OUT
= 1 V p-p −66/−59 dBc
OUT
= 1 V p-p composite
OUT
OUT
= 1 V p-p composite
OUT
+41/−87 dBm/dBc
+40/−86 dBm/dBc
+40/−98 dBm/dBc
+39/−97 dBm/dBc
+38/−93 dBm/dBc
+24/−65 dBm/dBc
+25/−66 dBm/dBc
Rev. C | Page 5 of 24
ADL5562
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter Rating
Supply Voltage (VCC) 3.6 V
VIP1, VIP2, VIN1, VIN2 VCC + 0.5 V
Internal Power Dissipation 310 mW
θJA 98.3°C/W
Maximum Junction Temperature 125°C
Operating Temperature Range −40°C to +85°C
Storage Temperature Range −65°C to +150°C
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. C | Page 6 of 24
ADL5562
PIN 1
INDICATOR
1VIP2
2VIP1
3VIN1
4VIN2
11 VOP
12 ENBL
10 VON
9 VCOM
5VCC
6VCC
7VCC
8VCC
15
GND
16
GND
14
GND
13
GND
TOP VIEW
(Not to S cale)
ADL5562
08003-031
NOTES
1. EXPOS E D P ADDLE. CONNECT TO A LOW
IMPEDANCE T HE RM AL AND ELECTRI CAL
GROUND PLANE .
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Figure 2. Pin Configuration
Table 3. Pin Function Descriptions
Pin No. Mnemonic Description
1 VIP2 Balanced Differential Input. Biased to VCOM, typically ac-coupled. Input for AV = 12 dB gain, strapped to
VIP1 for A
= 15.5 dB.
V
2 VIP1 Balanced Differential Input. Biased to VCOM, typically ac-coupled. Input for AV = 6 dB gain, strapped to
VIP2 for A
= 15.5 dB.
V
3 VIN1 Balanced Differential Input. Biased to VCOM, typically ac-coupled. Input for AV = 6 dB gain, strapped to
VIN2 for A
= 15.5 dB.
V
4 VIN2 Balanced Differential Input. Biased to VCOM, typically ac-coupled. Input for AV = 12 dB gain, strapped to
VIN1 for A
= 15.5 dB.
V
5, 6, 7, 8 VCC Positive Supply.
9 VCOM Common-Mode Voltage. A voltage applied to this pin sets the common-mode voltage of the input and
output. Typically decoupled to ground with a 0.1 μF capacitor. With no reference applied, input and
output common mode floats to midsupply (VCC/2).
10 VON Balanced Differential Output. Biased to VCOM, typically ac-coupled.
11 VOP Balanced Differential Output. Biased to VCOM, typically ac-coupled.
12 ENBL Enable. Apply positive voltage (1.0 V < ENBL < VCC) to activate device.
13, 14, 15, 16 GND Ground. Connect to low impedance ground.
EP Exposed Pad. Connect to a low impedance thermal and electrical ground plane.
Rev. C | Page 7 of 24
ADL5562
A
√
TYPICAL PERFORMANCE CHARACTERISTICS
VCC = 3.3 V, VCOM = 1.65 V, RL = 200 Ω differential, AV = 6 dB, CL = 1 pF differential, f = 140 MHz, T = 25°C.
16
MAXIMUM GAIN
14
12
MID GAIN
–40°C
+25°C
+85°C
25
RL = 200Ω
20
10
GAIN (dB)
8
MINIMUM GAIN
6
4
10M 100M 1G 10G
FREQUENCY (Hz)
Figure 3. Gain vs. Frequency Response for 200 Ω Differential Load,
= 6 dB, AV = 12 dB, and AV = 15.5 dB over Temperature
A
V
20
–40°C
+25°C
+85°C
18
MAXIMUM GAIN
16
14
MID GAIN
12
GAIN (dB)
10
8
MINIMUM GAIN
6
4
10M 100M 1G 10G
FREQUENCY ( Hz)
Figure 4. Gain vs. Frequency Response for 1 kΩ Differential Load,
= 6 dB, AV = 12 dB, and AV = 15.5 dB over Temperature
A
V
16
AV MAXIMUM
A
MID
V
A
MINIMUM
14
V
12
15
OP1dB (dBm)
MIN GAIN +85°C
MIN GAIN +25°C
MIN GAIN –40°C
10
MID GAIN +85°C
MID GAIN +25°C
MID GAIN –40°C
MAX GAIN +85°C
MAX GAIN +25°C
MAX GAIN –40°C
5
0 100 200 300 400 500 600 700 800 900 1000
08003-002
FREQEUNCY (MHz)
8003-016
Figure 6. Output P1dB (OP1dB) vs. Frequency at AV = 6 dB, AV = 12 dB, and
= 15.5 dB over Temperature, 200 Ω Differential Load
A
V
25
20
15
OP1dB (dBm)
10
5
0 100 200 300 400 500 600 700 800 900 1000
08003-003
FREQUENCY (MHz)
RL = 1kΩ
MIN GAIN +85°C
MIN GAIN +25°C
MIN GAIN –40°C
MID GAIN +85°C
MID GAIN +25°C
MID GAIN –40°C
MAX GAIN +85°C
MAX GAIN +25°C
MAX GAIN –40°C
08003-017
Figure 7. Output P1dB (OP1dB) vs. Frequency at AV = 6 dB, AV = 12 dB, and
= 15.5 dB over Temperature, 1 kΩ Differential Load
A
V
8
AV MAXIMUM
A
MID
V
7
A
MINIMUM
Hz)
V
6
10
8
6
NOISE FI GURE (dB)
4
2
0
10 100 1000
FREQUENCY ( MHz)
Figure 5. Noise Figure vs. Frequency at
= 6 dB, AV = 12 dB, and AV = 15.5 dB
A
V
08003-004
5
4
L DENSITY ( nV/
3
2
NOISE SPECTR
1
0
10M 100M 1G
FREQUENCY ( Hz)
Figure 8. Noise Spectral Density vs. Frequency
at A
= 6 dB, AV = 12 dB, and AV = 15.5 dB
V
08003-005
Rev. C | Page 8 of 24
Loading...