AD8000 Analog Devices, AD8000 Datasheet

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AD8000

Manufacturer Part Number
AD8000
Description
1.5 GHz, Ultra-High Speed Op Amp with Power-Down
Manufacturer
Analog Devices
Datasheet

Specifications of AD8000

-3db Bandwidth
1580MHz
Slew Rate
4100V/µs
Vos
1mV
Ib
5µA
# Opamps Per Pkg
1
Input Noise (nv/rthz)
1.6nV/rtHz
Vcc-vee
4.5V to 12V
Isy Per Amplifier
14.3mA
Packages
CSP,SOIC

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FEATURES
High speed
Excellent video specifications
Output overdrive recovery: 22 ns
Low noise: 1.6 nV/√Hz input voltage noise
Low distortion over wide bandwidth
Input offset voltage: 1 mV typ
High output current: 100 mA
Wide supply voltage range: 4.5 V to 12 V
Supply current: 13.5 mA
Power-down mode
APPLICATIONS
Professional video
High speed instrumentation
Video switching
IF/RF gain stage
CCD imaging
GENERAL DESCRIPTION
The AD8000 is an ultrahigh speed, high performance, current
feedback amplifier. Using ADI’s proprietary eXtra Fast Com-
plementary Bipolar (XFCB) process, the amplifier can achieve a
small signal bandwidth of 1.5 GHz and a slew rate of 4100 V/μs.
The AD8000 has low spurious-free dynamic range (SFDR) of
75 dBc @ 20 MHz and input voltage noise of 1.6 nV/√Hz. The
AD8000 can drive over 100 mA of load current with minimal
distortion. The amplifier can operate on +5 V to ±6 V. These
specifications make the AD8000 ideal for a variety of applica-
tions, including high speed instrumentation.
With a differential gain of 0.02%, differential phase of 0.01°, and
0.1 dB flatness out to 170 MHz, the AD8000 has excellent video
specifications, which ensure that even the most demanding
video systems maintain excellent fidelity.
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no re-
sponsibility 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.
1.5 GHz, −3 dB bandwidth (G = +1)
650 MHz, full power bandwidth (G = +2, V
Slew rate: 4100 V/μs
0.1% settling time: 12 ns
0.1 dB flatness: 170 MHz
Differential gain: 0.02%
Differential phase: 0.01°
75 dBc SFDR @ 20 MHz
62 dBc SFDR @ 50 MHz
O
= 2 V p-p)
1.5 GHz Ultrahigh Speed Op Amp
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
The AD8000 power-down mode reduces the supply current to
1.3 mA. The amplifier is available in a tiny 8-lead LFCSP pack-
age, as well as in an 8-lead SOIC package. The AD8000 is rated
to work over the extended industrial temperature range (−40°C
to +125°C). A triple version of the AD8000 (AD8003) is under-
development.
Figure 1. 8-Lead AD8000, 3 mm × 3 mm LFCSP_VD (CP-8-2)
–1
–2
–3
–4
–5
–6
–7
3
2
1
0
POWER DOWN
NOTES
1. NC = NO CONNECT.
2. THE EXPOSED PADDLE IS CONNECTED TO GROUND.
FEEDBACK
NOTES
1. NC = NO CONNECT.
2. THE EXPOSED PADDLE IS CONNECTED TO GROUND.
1
FEEDBACK
V
R
V
Figure 2. 8-Lead AD8000 SOIC_N_EP (RD-8-1)
S
L
OUT
Figure 3. Large Signal Frequency Response
= 5V
= 150
–V
CONNECTION DIAGRAMS
+IN
–IN
= 2V p-p
S
–IN
+IN
©2005-2010 Analog Devices, Inc. All rights reserved.
1
2
3
4
1
2
3
4
10
AD8000
FREQUENCY (MHz)
AD8000
G = +2, R
8
7
6
5
100
POWER DOWN
+V
OUTPUT
NC
F
S
= 432
8 +V
7 OUTPUT
6 NC
5 –V
www.analog.com
AD8000
S
S
1000

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AD8000 Summary of contents

Page 1

... The AD8000 power-down mode reduces the supply current to 1.3 mA. The amplifier is available in a tiny 8-lead LFCSP pack- age, as well 8-lead SOIC package. The AD8000 is rated to work over the extended industrial temperature range (−40°C to +125°C). A triple version of the AD8000 (AD8003) is under- development ...

Page 2

... AD8000 TABLE OF CONTENTS Table of Contents .............................................................................. 2 Specifications with ±5 V Supply ..................................................... 3 Specifications with +5 V Supply ..................................................... 4 Absolute Maximum Ratings ............................................................ 5 Thermal Resistance ...................................................................... 5 ESD Caution .................................................................................. 5 Typical Performance Characteristics ............................................. 6 Test Circuits ..................................................................................... 13 Applications ..................................................................................... 14 Circuit Configurations ............................................................... 14 REVISION HISTORY 3/10—Rev Rev. A Changes to Figure 1 and Figure 2 ................................................... 1 Changes to Table 3 ............................................................................ 5 Updated Outline Dimensions and Changes to Ordering Guide ............................................................................... 17 1/05— ...

Page 3

... 100 Ω kΩ p-p, second HD < −50 dBc MHz, triangle wave step IN −PSRR/+PSRR Rev Page AD8000 Min Typ Max Unit 1580/1350 MHz 650/610 MHz 190/170 MHz 4100 V/μ 86/89 dBc ...

Page 4

... AD8000 SPECIFICATIONS WITH +5 V SUPPLY 25° 150 Ω, Gain = + ground. Table 2. Parameter DYNAMIC PERFORMANCE −3 dB Bandwidth Bandwidth for 0.1 dB Flatness Slew Rate Settling Time to 0.1% NOISE/HARMONIC PERFORMANCE Second/Third Harmonic Second/Third Harmonic Input Voltage Noise Input Current Noise Differential Gain Error ...

Page 5

... Therefore, proper ESD precautions are recommended to avoid performance degradation and loss of functionality. The power dissipated in the package (P quiescent power dissipation and the power dissipated in the die due to the AD8000 drive at the output. The quiescent power is the voltage between the supply pins (V − 0 0.7 V ...

Page 6

... AD8000 TYPICAL PERFORMANCE CHARACTERISTICS 3 = ± + 432Ω 150Ω 200mV p-p OUT 1 0 – + 432Ω 432Ω –2 – +10 357Ω 40.2Ω –4 –5 –6 – 100 FREQUENCY (MHz) Figure 5. Small Signal Frequency Response vs. Various Gains 3 = ± ...

Page 7

... FREQUENCY (MHz) = ± +125° 1kΩ 200mV p-p OUT LFCSP 10 100 FREQUENCY (MHz) –40°C +25°C = ± 150Ω L +125° p-p OUT LFCSP 10 100 FREQUENCY (MHz) AD8000 –40°C 1000 +25°C –40°C 1000 1000 ...

Page 8

... AD8000 p-p OUT p-p = ±5V OUT 150Ω L LFCSP – 100 FREQUENCY (MHz) Figure 17. Large Signal Frequency Response vs. Various Outputs –40 = ± p-p OUT – 150Ω L –60 LFCSP SECOND HD –70 –80 –90 –100 –110 – ...

Page 9

... OUT – – LFCSP –60 –70 –80 –90 –100 –110 1 100 Figure 28. Harmonic Distortion vs. Frequency Rev Page AD8000 = ±2. p-p = 150Ω THIRD HD SECOND HD 10 FREQUENCY (MHz p-p = 1kΩ THIRD HD SECOND HD 10 FREQUENCY (MHz) = ± p-p = 150Ω SECOND HD THIRD HD ...

Page 10

... AD8000 –40 = ± p-p OUT – – 1kΩ L LFCSP –60 SECOND HD –70 –80 –90 –100 –110 –120 1 10 FREQUENCY (MHz) Figure 29. Harmonic Distortion vs. Frequency 1k = ± 0.2V p 432Ω F 100 LFCSP 0 0.01 0 FREQUENCY (MHz) Figure 30. Output Impedance vs. Frequency 2 ...

Page 11

... ±2.5V OUT 150Ω 432Ω F 200 400 600 800 TIME (ns) Figure 39. Output Overdrive = ± + 432Ω 47.5Ω N 100 1k 10k 100k 1M 10M FREQUENCY (Hz) Figure 40. Input Voltage Noise AD8000 1000 1000 100M ...

Page 12

... AD8000 1000 = ± 100 INVERTING CURRENT NOISE NONINVERTING CURRENT NOISE, R 0.1 10 100 1k 10k 100k FREQUENCY (Hz) Figure 41. Input Current Noise ± –5 –10 – –20 –5 –4 –3 –2 – (V) CM Figure 42. Input V vs. Common-Mode Voltage ...

Page 13

... AD8000 TRANSMISSION LINE 49.9Ω 50Ω 432Ω 432Ω 49.9Ω – Figure 49. Negative PSRR Rev Page 50Ω TRANSMISSION 49.9Ω LINE 49.9Ω 50Ω TRANSMISSION LINE 49.9Ω TERMINATION 50Ω 50Ω TRANSMISSION LINE 49.9Ω TERMINATION 50Ω AD8000 ...

Page 14

... F has on bandwidth. In VIDEO LINE DRIVER The AD8000 is designed to offer outstanding performance as a video line driver. The important specifications of differential gain (0.02%), differential phase (0.01°), and 650 MHz band- width p-p meet the most exacting video demands. Figure 52 shows a typical noninverting video driver with a gain of +2. ...

Page 15

... Laying out the printed circuit board (PCB) is usually the last step in the design process and often proves to be one of the most critical. A brilliant design can be rendered useless because of a poor or sloppy layout. Since the AD8000 can operate into the R frequency spectrum, high frequency board layout con- F siderations must be taken into account ...

Page 16

... Ground and power planes should not be used under any of the pins of the AD8000. The mounting pads and the ground or power planes can form a parasitic capacitance at the amplifiers input. Stray capacitance on the inverting input and the feedback resistor form a pole, which degrades the phase margin, leading to instability ...

Page 17

... Temperature Range AD8000YRDZ –40°C to +125°C AD8000YRDZ-REEL –40°C to +125°C AD8000YRDZ-REEL7 –40°C to +125°C AD8000YCPZ-R2 –40°C to +125°C AD8000YCPZ-REEL –40°C to +125°C AD8000YCPZ-REEL7 –40°C to +125° RoHS Compliant Part. 5.00 (0.197) 4.90 (0.193) 2.29 (0.090) 4.80 (0.189 6.20 (0.244) TOP VIEW 6 ...

Page 18

... AD8000 NOTES Rev Page ...

Page 19

... NOTES Rev Page AD8000 ...

Page 20

... AD8000 NOTES © 2005-2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05321–0–3/10(A) Rev Page ...

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