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AD8008ARMZ-REEL7

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
Ultralow Distortion,
High Speed Amplifiers
AD8007/AD8008
Rev. E
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.
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 ©2002–2009 Analog Devices, Inc. All rights reserved.
FEATURES
Extremely low distortion
Second harmonic
−88 dBc @ 5 MHz
−83 dBc @ 20 MHz (AD8007)
−77 dBc @ 20 MHz (AD8008)
Third harmonic
−101 dBc @ 5 MHz
−92 dBc @ 20 MHz (AD8007)
−98 dBc @ 20 MHz (AD8008)
High speed
650 MHz, −3 dB bandwidth (G = +1)
1000 V/μs slew rate
Low noise
2.7 nV/√Hz input voltage noise
22.5 pA/√Hz input inverting current noise
Low power: 9 mA/amplifier typical supply current
Wide supply voltage range: 5 V to 12 V
0.5 mV typical input offset voltage
Small packaging: 8-lead SOIC, 8-lead MSOP, and 5-lead SC70
APPLICATIONS
Instrumentation
IF and baseband amplifiers
Filters
A/D drivers
DAC buffers
CONNECTION DIAGRAMS
8
7
6
5
1
2
3
4
NC = NO CONNECT
NC
–IN
+IN
NC
+V
S
V
OUT
NC
–V
S
AD8007
(Top View)
02866-001
Figure 1. 8-Lead SOIC (R)
5
1
2
3
–IN
+IN
+V
S
V
OUT
–V
S
4
AD8007
(Top View)
02866-002
Figure 2. 5-Lead SC70 (KS)
1
V
OUT1
–IN1
+IN1
–V
S
+V
S
V
OUT2
–IN2
+IN2
8
27
36
45
AD8008
(Top View)
02866-003
Figure 3. 8-Lead SOIC (R) and 8-Lead MSOP (RM)
GENERAL DESCRIPTION
The AD8007 (single) and AD8008 (dual) are high performance
current feedback amplifiers with ultralow distortion and noise.
Unlike other high performance amplifiers, the low price and
low quiescent current allow these amplifiers to be used in a
wide range of applications. Analog Devices, Inc., proprietary
second-generation eXtra-Fast Complementary Bipolar (XFCB)
process enables such high performance amplifiers with low power
consumption.
The AD8007/AD8008 have 650 MHz bandwidth, 2.7 nV/√Hz
voltage noise, −83 dB SFDR at 20 MHz (AD8007), and −77 dBc
SFDR at 20 MHz (AD8008).
With the wide supply voltage range (5 V to 12 V) and wide
bandwidth, the AD8007/AD8008 are designed to work in a
variety of applications. The AD8007/AD8008 amplifiers have
a low power supply current of 9 mA/amplifier.
The AD8007 is available in a tiny SC70 package as well as a
standard 8-lead SOIC. The dual AD8008 is available in both an
8-lead SOIC and an 8-lead MSOP. These amplifiers are rated to
work over the industrial temperature range of −40°C to +85°C.
FREQUENCY (MHz)
–
30
–40
–110
1110
DISTO
00
R
TION (dBc)
–70
–80
–90
–100
–50
–60
SECOND
G = +2
R
L
= 150Ω
V
S
= ±5V
V
OUT
= 2V p-p
02866-004
THIRD
Figure 4. AD8007 Second and Third Harmonic Distortion vs. Frequency
AD8007/AD8008
Rev. E | Page 2 of 20
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Connection Diagrams ...................................................................... 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
V
S
= ±5 V ....................................................................................... 3
V
S
= 5 V .......................................................................................... 4
Absolute Maximum Ratings ............................................................ 6
Maximum Power Dissipation ......................................................... 6
Output Short Circuit ........................................................................ 6
ESD Caution .................................................................................. 6
Typical Performance Characteristics ..............................................7
Theory of Operation ...................................................................... 15
Using the AD8007/AD8008 ...................................................... 15
Layout Considerations ............................................................... 16
Layout And Grounding Considerations ...................................... 17
Grounding ................................................................................... 17
Input Capacitance ...................................................................... 17
Output Capacitance ................................................................... 17
Input-to-Output Coupling ........................................................ 17
External Components and Stability ......................................... 17
Outline Dimensions ....................................................................... 18
Ordering Guide .......................................................................... 19
REVISION HISTORY
11/09—Rev. D to Rev. E
Change to Output Capacitance Section ....................................... 17
Updated Outline Dimensions ....................................................... 18
Changes to Ordering Guide .......................................................... 19
6/03—Rev. C to Rev. D
Change to Layout Considerations Section .................................. 15
Deleted Figure 7 .............................................................................. 16
Deleted Evaluation Board Section ................................................ 16
Updated Outline Dimensions ....................................................... 16
10/02—Rev. B to Rev. C
Connection Diagrams Captions Updated .................................... 1
Ordering Guide Updated ................................................................ 5
Figure 5 Edited ............................................................................... 14
Updated Outline Dimensions ....................................................... 19
9/02—Rev. A to Rev. B
Updated Outline Dimensions ....................................................... 19
8/02—Rev. 0 to Rev. A
Added AD8008 .................................................................. Universal
Added SOIC-8 (RN) and MSOP-8 (RM) ...................................... 1
Changes to Features .......................................................................... 1
Changes to General Description .................................................... 1
Changes to Specifications ................................................................ 2
Edits to Maximum Power Dissipation Section ............................. 4
New Figure 2 ..................................................................................... 4
Changes to Ordering Guide ............................................................ 5
New TPCs 19 to 24 and TPCs 27, 29, 30, and 35 .......................... 9
Changes to Evaluation Board Section ......................................... 16
MSOP-8 (RM) Added ................................................................... 19
AD8007/AD8008
Rev. E | Page 3 of 20
SPECIFICATIONS
V
S
= ±5 V
T
A
= 25°C, R
S
= 200 Ω, R
L
= 150 Ω, R
F
= 499 Ω, Gain = +2, unless otherwise noted.
Table 1.
AD8007/AD8008
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Bandwidth G = +1, V
O
= 0.2 V p-p, R
L
= 1 kΩ 540 650 MHz
G = +1, V
O
= 0.2 V p-p, R
L
= 150 Ω 250 500 MHz
G = +2, V
O
= 0.2 V p-p, R
L
= 150 Ω 180 230 MHz
G = +1, V
O
= 2 V p-p, R
L
= 1 kΩ 200 235 MHz
Bandwidth for 0.1 dB Flatness V
O
= 0.2 V p-p, G = +2, R
L
= 150 Ω 50 90 MHz
Overdrive Recovery Time ±2.5 V input step, G = +2, R
L
= 1 kΩ 30 ns
Slew Rate G = +1, V
O
= 2 V step 900 1000 V/μs
Settling Time to 0.1% G = +2, V
O
= 2 V step 18 ns
Settling Time to 0.01% G = +2, V
O
= 2 V step 35 ns
NOISE/HARMONIC PERFORMANCE
Second Harmonic f
C
= 5 MHz, V
O
= 2 V p-p −88 dBc
f
C
= 20 MHz, V
O
= 2 V p-p −83/−77 dBc
Third Harmonic f
C
= 5 MHz, V
O
= 2 V p-p −101 dBc
IMD f
C
= 20 MHz, V
O
= 2 V p-p −92/−98 dBc
f
C
= 19.5 MHz to 20.5 MHz, R
L
= 1 kΩ, V
O
= 2 V p-p −77 dBc
Third-Order Intercept f
C
= 5 MHz, R
L
= 1 kΩ 43.0/42.5 dBm
f
C
= 20 MHz, R
L
= 1 kΩ 42.5 dBm
Crosstalk (AD8008) f = 5 MHz, G = +2 −68 dB
Input Voltage Noise f = 100 kHz 2.7 nV/√Hz
Input Current Noise −Input, f = 100 kHz 22.5 pA/√Hz
+Input, f = 100 kHz 2 pA/√Hz
Differential Gain Error NTSC, G = +2, R
L
= 150 Ω 0.015 %
Differential Phase Error NTSC, G = +2, R
L
= 150 Ω 0.010 Degree
DC PERFORMANCE
Input Offset Voltage 0.5 4 mV
Input Offset Voltage Drift 3 μV/°C
Input Bias Current +Input 4 8 μA
−Input 0.4 6 μA
Input Bias Current Drift +Input 16 nA/°C
−Input 9 nA/°C
Transimpedance V
O
= ±2.5 V, R
L
= 1 kΩ 1.0 1.5 MΩ
R
L
= 150 Ω 0.4 0.8 MΩ
INPUT CHARACTERISTICS
Input Resistance +Input 4 MΩ
Input Capacitance +Input 1 pF
Input Common-Mode Voltage Range −3.9 to +3.9 V
Common-Mode Rejection Ratio V
CM
= ±2.5 V 56 59 dB
OUTPUT CHARACTERISTICS
Output Saturation Voltage V
CC
− V
OH
, V
OL
− V
EE
, R
L
= 1 kΩ 1.1 1.2 V
Short-Circuit Current, Source 130 mA
Short-Circuit Current, Sink 90 mA
Capacitive Load Drive 30% overshoot 8 pF
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

AD8008ARMZ-REEL7

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High Speed Operational Amplifiers Ultra Low Distortion
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