ADL5561-EVALZ AD [Analog Devices], ADL5561-EVALZ Datasheet

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ADL5561-EVALZ

Manufacturer Part Number
ADL5561-EVALZ
Description
2.9 GHz Ultralow Distortion RF/IF Differential Amplifier
Manufacturer
AD [Analog Devices]
Datasheet
FEATURES
−3 dB bandwidth of 2.9 GHz (A
Low supply current: 40 mA
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 at A
Low broadband distortion (Av = 6 dB)
IMD3s of −86 dBc @ 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
GENERAL DESCRIPTION
The ADL5561 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 analog-to-digital converters (ADCs).
The ADL5561 provides three gain levels of 6 dB, 12 dB, and 15.5 dB
through a pin-strappable configuration. For the single-ended
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 ADL5561 is typically 40 mA and,
when disabled, consumes less than 3 mA, offering excellent
input-to-output isolation.
Rev. B
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.
10 MHz: −94 dBc HD2, −87 dBc HD3
70 MHz: −98 dBc HD2, −87 dBc HD3
140 MHz: −95 dBc HD2, −87 dBc HD3
250 MHz: −80 dBc HD2, −73 dBc HD3
V
= 6 dB)
V
= 12 dB
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
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 multi-
element discrete devices.
Fabricated on the Analog Devices, Inc., high speed SiGe process,
the ADL5561 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.
RF/IF Differential Amplifier
2.9 GHz Ultralow Distortion
VIN1
VIN2
VIP2
VIP1
FUNCTIONAL BLOCK DIAGRAM
R
R
R
R
G2
G1
G1
G2
©2009–2010 Analog Devices, Inc. All rights reserved.
Figure 1.
GND
VCC
R
R
F
F
ADL5561
ADL5561
www.analog.com
ENBL
VON
VCOM
VOP
GND

Related parts for ADL5561-EVALZ

ADL5561-EVALZ Summary of contents

Page 1

... The ADL5561 provides three gain levels of 6 dB, 12 dB, and 15.5 dB through a pin-strappable configuration. For the single-ended input configuration, the gains are reduced to 5.6 dB, 11.1 dB, and 14 ...

Page 2

... ADL5561 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 3/10—Rev A to Rev. B Changes to Figure 43 ...................................................................... 21 Changes to Ordering Guide .......................................................... 21 9/09— ...

Page 3

... 14.1 dB Ω Device disabled, ENBL low Device enabled, ENBL high ENBL high ENBL low ENBL high ENBL low Rev Page ADL5561 = 25°C. A Min Typ Max Unit 2900 MHz 2300 MHz 1800 MHz 200 MHz 200 ...

Page 4

... ADL5561 Parameter 10 MHz NOISE/HARMONIC PERFORMANCE Second/Third Harmonic Distortion Output Third-Order Intercept/Third-Order Intermodulation Distortion Noise Spectral Density (RTI Compression Point (RTO) 70 MHz NOISE/HARMONIC PERFORMANCE Second/Third Harmonic Distortion Output Third-Order Intercept/Third-Order Intermodulation Distortion Noise Spectral Density (RTI Compression Point (RTO) 140 MHz NOISE/HARMONIC PERFORMANCE ...

Page 5

... L OUT composite (2 MHz spacing 15 15 Rev Page ADL5561 Min Typ Max Unit −80/−73 dBc −76/−70 dBc −78/−72 dBc +41/−86 dBm/dBc +40/−84 dBm/dBc +39/−83 dBm/dBc 3.2 nV/√Hz 2.2 nV/√Hz 1.7 nV/√Hz 19 ...

Page 6

... ADL5561 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Supply Voltage (VCC) VIP1, VIP2, VIN1, VIN2 Internal Power Dissipation θ JA Maximum Junction Temperature Operating Temperature Range Storage Temperature Range Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress Rating rating only ...

Page 7

... VIN2 4 9 VCOM NOTES 1. EXPOSED PADDLE. CONNECT TO A LOW IMPEDANCE THERMAL AND ELECTRICAL GROUND PLANE. Figure 2. Pin Configuration = 15.5 dB 15.5 dB 15.5 dB 15.5 dB. v Rev Page ADL5561 = 12 dB gain, strapped gain, strapped gain, strapped gain, strapped to V ...

Page 8

... ADL5561 TYPICAL PERFORMANCE CHARACTERISTICS VCC = 3.3 V, VCOM = 1. 200 Ω differential MAXIMUM GAIN 14 12 MID GAIN MINIMUM GAIN 4 10M 100M FREQUENCY (Hz) Figure 3. Gain vs. Frequency Response for 200 Ω Differential Load dB dB, and A = 15.5 dB over Temperature MAXIMUM GAIN ...

Page 9

... R L – /TONE (dBm) OUT Frequency 140 MHz 15 MAXIMUM V A MID V A MINIMUM 100 150 200 FREQUENCY (MHz) Figure 14. IMD vs. Frequency (Single-Ended Input) ADL5561 0 –20 –40 –60 –80 –100 –120 250 = 1 kΩ OUT 250 ...

Page 10

... ADL5561 –40 –60 –80 –100 –120 –140 –160 0 50 100 150 FREQUENCY (MHz) Figure 15. Harmonic Distortion (HD2/HD3) vs. Frequency dB, and A = 15.5 dB, Output Level p- –40 –60 –80 –100 –120 –140 –160 0 50 100 150 FREQUENCY (MHz) Figure 16. Harmonic Distortion (HD2/HD3) vs. Frequency, Three Temperatures, Output Level p-p, R – ...

Page 11

... FREQUENCY (MHz) Figure 25. Group Delay and Phase vs. Frequency A MAXIMUM V A MID V A MINIMUM 1kΩ 200Ω L 100M FREQUENCY (Hz) ADL5561 –60 –65 –70 –75 –80 –85 –90 –95 –100 –105 1.9 0 –20 –40 –60 –80 –100 –120 –140 –160 – ...

Page 12

... ADL5561 0 –10 –20 DISABLED –30 –40 ENABLED –50 –60 –70 0 0.5 1.0 1.5 FREQUENCY (GHz) Figure 27. Reverse Isolation (S12) vs. Frequency 1k A MAXIMUM V A MID 900 V A MINIMUM V 800 700 600 500 400 300 200 100 0 10M 100M FREQUENCY (Hz) Figure 28. Input Impedance vs. Frequency ...

Page 13

... MHz with low noise and low power consumption. The low distortion and noise are realized with a 3.3 V power supply at 40 mA. The ADL5561 is very flexible in terms of I/O coupling. It can be ac-coupled or dc-coupled at the inputs and/or the outputs within the specified input and output common-mode levels. The input of the device can be configured as single-ended or differential with similar distortion performance ...

Page 14

... Figure 31. To enable the ADL5561, the ENBL pin must be pulled high. Pulling the ENBL pin low puts the ADL5561 in sleep mode, reducing the current consumption ambient. 1 VIP2 ...

Page 15

... INPUT AND OUTPUT INTERFACING The ADL5561 can be configured as a differential input to differential output driver, as shown in Figure 32. The differential broadband input is provided by the ETC1-1-13 balun transformer, and the two 34.8 Ω resistors provide a 50 Ω input match for the three input impedances that change with the variable gain strapping. The input and output 0.1 μ ...

Page 16

... For frequencies less than 100 MHz, the input impedance of the ADL5561 can be modeled as a real 133 Ω, 200 Ω, or 400 Ω resistance (differential) for maximum, middle, and minimum gains, respectively. Assuming that the frequency is low enough ...

Page 17

... In this example, a low loss 1:1 input transformer is used to match the ADL5561 balanced input Ω unbalanced source, resulting in minimum insertion loss at the input. Figure 40 is optimized for driving some of the Analog Devices popular unbuffered ADCs, such as the AD9246, AD9640, and AD6655 ...

Page 18

... R6 VIN2 Figure 41. General-Purpose Characterization Circuit R2 (Ω) R3 (Ω) R4 (Ω) 29 Open Open 40 (Ω) 84.5 487 R3 VIP2 R1 R4 VIP1 VOP ADL5561 R5 VIN1 VON R2 R6 VIN2 R2 (Ω) R3 (Ω) R4 (Ω) 67 Open 0 100 0 Open 200 (Ω) 50 475 Rev Page ETC1-1-13 SPECTRUM ...

Page 19

... EVALUATION BOARD Figure 43 shows the schematic of the ADL5561 evaluation board. The board is powered by a single supply in the 3.6 V range. The power supply is decoupled by 10 μF and 0.1 μF capacitors Table 14 details the various configuration options of the evaluation board ...

Page 20

... ADL5561 Figure 44. Layout of Evaluation Board, Component Side Figure 45. Layout of Evaluation Board, Circuit Side Rev Page ...

Page 21

... OUTLINE DIMENSIONS PIN 1 INDICATOR 12° MAX 1.00 0.85 0.80 SEATING PLANE ORDERING GUIDE Temperature Model 1 Range ADL5561ACPZ-R7 −40°C to +85°C ADL5561ACPZ-WP −40°C to +85°C ADL5561-EVALZ RoHS Compliant Part. 3.00 0.60 MAX BSC SQ 0.45 12 2.75 TOP BSC SQ VIEW 9 0.50 BSC 1.50 REF 0.80 MAX 0.65 TYP 0.05 MAX 0.02 NOM 0.30 0.20 REF ...

Page 22

... ADL5561 NOTES Rev Page ...

Page 23

... NOTES Rev Page ADL5561 ...

Page 24

... ADL5561 NOTES ©2009–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D08004-0-3/10(B) Rev Page ...

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