AD8001A Analog Devices, AD8001A Datasheet

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AD8001A

Manufacturer Part Number
AD8001A
Description
800 Mhz, 50 MW Current Feedback Amplifier
Manufacturer
Analog Devices
Datasheet

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a
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
REV. C
PRODUCT DESCRIPTION
The AD8001 is a low power, high-speed amplifier designed
to operate on 5 V supplies. The AD8001 features unique
FEATURES
Excellent Video Specifications (R
Low Power
High Speed and Fast Settling
Low Distortion
High Output Drive
APPLICATIONS
A-to-D Driver
Video Line Driver
Professional Cameras
Video Switchers
Special Effects
RF Receivers
Gain Flatness 0.1 dB to 100 MHz
0.01% Differential Gain Error
0.025 Differential Phase Error
5.5 mA Max Power Supply Current (55 mW)
880 MHz, –3 dB Bandwidth (G = +1)
440 MHz, –3 dB Bandwidth (G = +2)
1200 V/ s Slew Rate
10 ns Settling Time to 0.1%
–65 dBc THD, f
33 dBm 3rd Order Intercept, F
–66 dB SFDR, f = 5 MHz
70 mA Output Current
Drives Up to Four Back-Terminated Loads (75
While Maintaining Good Differential Gain/Phase
Performance (0.05%/0.25 )
–12
–3
–6
–9
Figure 1. Frequency Response of AD8001
9
6
3
0
10M
G = +2
R
L
= 100
C
= 5 MHz
FREQUENCY – Hz
100M
V
R
S
FB
=
= 1k
5V
1
L
= 10 MHz
= 150
V
R
S
FB
=
= 820
, G = +2)
5V
1G
Each)
transimpedance linearization circuitry. This allows it to drive
video loads with excellent differential gain and phase perfor-
mance on only 50 mW of power. The AD8001 is a current
feedback amplifier and features gain flatness of 0.1 dB to 100 MHz
while offering differential gain and phase error of 0.01% and
0.025 . This makes the AD8001 ideal for professional video
electronics such as cameras and video switchers. Additionally,
the AD8001’s low distortion and fast settling make it ideal for
buffer high-speed A-to-D converters.
The AD8001 offers low power of 5.5 mA max (V
can run on a single +12 V power supply, while being capable of
delivering over 70 mA of load current. These features make this
amplifier ideal for portable and battery-powered applications
where size and power are critical.
The outstanding bandwidth of 800 MHz along with 1200 V/ s
of slew rate make the AD8001 useful in many general purpose
high-speed applications where dual power supplies of up to 6 V
and single supplies from 6 V to 12 V are needed. The AD8001 is
available in the industrial 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
Fax: 781/326-8703
Figure 2. Transient Response of AD8001; 2 V Step, G = +2
8-Lead DIP (N-8, Q-8)
–IN
+IN
Current Feedback Amplifier
NC
and SOIC (SO-8)
V–
1
2
3
4
NC = NO CONNECT
FUNCTIONAL BLOCK DIAGRAMS
AD8001
World Wide Web Site: http://www.analog.com
8
7
6
5
NC
V+
OUT
NC
800 MHz, 50 mW
V
–V
OUT
+IN
© Analog Devices, Inc., 1999
S
1
2
3
SOT-23-5
AD8001
5-Lead
AD8001
S
= 5 V) and
5
4
+V
–IN
S

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AD8001A Summary of contents

Page 1

... FREQUENCY – Hz Figure 1. Frequency Response of AD8001 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 which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices ...

Page 2

... –V = – –V = – – –T MIN MAX T –T MIN MAX –2– , unless otherwise noted) AD8001A Min Typ Max Units 350 440 MHz 650 880 MHz 350 440 MHz 575 715 MHz 300 380 ...

Page 3

... Model Range AD8001AN – +85 C AD8001AQ – +125 C AD8001AR – +85 C AD8001AR-REEL – +85 C AD8001AR-REEL7 – +85 C AD8001ART-REEL – +85 C AD8001ART-REEL7 – +85 C AD8001ACHIPS – + 5962-9459301MPA – +125 C 2 AD8001R-EB+2 NOTES 1 Standard Military Drawing Device ...

Page 4

AD8001 806 0.001 0.1 F 806 AD8001 0 HP8133A 50 PULSE 0.001 F GENERATOR 50ps R F –V S Figure 4. Test Circuit , Gain = +2 Figure ...

Page 5

100 – –6 –9 –12 10M 100M FREQUENCY – Hz Figure 10. Frequency Response 0 –0.1 ...

Page 6

AD8001 5 0 – –26dBm IN – 909 F –15 –20 –25 –30 –35 100M FREQUENCY – Hz Figure 16. Frequency Response – 953 F –2 –3 –4 G ...

Page 7

G = +100 + – 100 L –10 –15 –20 –25 1M 10M 100M FREQUENCY – Hz Figure 22. Frequency Response +10, G ...

Page 8

AD8001 150 OUT 3 – –60 –40 – JUNCTION TEMPERATURE – C Figure 28. Transresistance vs. Temperature 100 INVERTING CURRENT ...

Page 9

150 –20 V OUT 62 150 –30 –40 –50 300k 1M 10M FREQUENCY – Hz Figure 34. CMRR vs. Frequency 1 0 – 649 F –2 – –2 –4 R ...

Page 10

AD8001 THEORY OF OPERATION A very simple analysis can put the operation of the AD8001, a current feedback amplifier, in familiar terms. Being a current feedback amplifier, the AD8001’s open-loop behavior is ex- pressed as transimpedance ...

Page 11

Printed Circuit Board Layout Considerations expected for a wideband amplifier, PC board parasitics can affect the overall closed-loop performance. Of concern are stray capacitances at the output and the inverting input nodes ground plane is ...

Page 12

AD8001 Communications Distortion is a key specification in communications applications. Intermodulation distortion (IMD measure of the ability of an amplifier to pass complex signals without the generation of spurious harmonics. The third order products are usually the most ...

Page 13

Driving A-to-D Converters The AD8001 is well suited for driving high speed analog-to- digital converters such as the AD9058. The AD9058 is a dual 8-bit 50 MSPS ADC. In the circuit below the AD8001 is shown driving the inputs of ...

Page 14

... –V S Noninverting Configuration AD8001ART (SOT-23-5) Gain +10 +100 – +10 470 1000 845 1000 768 470 51 10 845 768 51 49.9 49.9 49.9 49.9 49.9 49.9 0 49.9 49.9 54.9 49.9 49.9 49.9 260 20 240 795 380 ...

Page 15

Evaluation Board An evaluation board for the AD8001 is available that has been carefully laid-out and tested to demonstrate that the specified high speed performance of the device can be realized. For Figure 50. Evaluation Board Silkscreen (Top) REV. C ...

Page 16

AD8001 8-Lead Plastic DIP (N-8) 0.430 (10.92) 0.348 (8.84 0.280 (7.11) 0.240 (6.10 0.325 (8.25) PIN 1 0.100 (2.54) 0.300 (7.62) BSC 0.060 (1.52) 0.210 0.015 (0.38) (5.33) MAX 0.130 0.160 (4.06) (3.30) MIN 0.115 (2.93) ...

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