a
800 MHz, 50 mW
Current Feedback Amplifier
AD8001
FEATURES
Excellent Video Specifications (RL = 150 ⍀, G = +2)
Gain Flatness 0.1 dB to 100 MHz
0.01% Differential Gain Error
0.025؇ Differential Phase Error
Low Power
5.5 mA Max Power Supply Current (55 mW)
High Speed and Fast Settling
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%
Low Distortion
–65 dBc THD, fC = 5 MHz
33 dBm Third Order Intercept, F1 = 10 MHz
–66 dB SFDR, f = 5 MHz
High Output Drive
70 mA Output Current
Drives Up to 4 Back-Terminated Loads (75 ⍀ Each)
While Maintaining Good Differential Gain/Phase
Performance (0.05%/0.25؇)
APPLICATIONS
A-to-D Drivers
Video Line Drivers
Professional Cameras
Video Switchers
Special Effects
RF Receivers
FUNCTIONAL BLOCK DIAGRAMS
8-Lead PDIP (N-8),
CERDIP (Q-8) and SOIC (R-8)
NC 1
8
–IN
2
7
6
OUT
5
NC
AD8001
V+
+IN 3
5-Lead SOT-23-5
(RT-5)
V– 4
NC
VOUT 1
AD8001
5
+VS
4
–IN
–VS 2
+IN 3
NC = NO CONNECT
transimpedance linearization circuitry. This allows it to drive
video loads with excellent differential gain and phase performance 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 (VS = ± 5 V) and
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.
GENERAL DESCRIPTION
The AD8001 is a low power, high speed amplifier designed
to operate on ± 5 V supplies. The AD8001 features unique
The outstanding bandwidth of 800 MHz along with 1200 V/µs
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.
9
VS = ؎5V
RFB = 820⍀
6
GAIN – dB
3
G = +2
RL = 100⍀
0
–3
VS = ؎5V
RFB = 1k⍀
–6
–9
–12
10M
100M
FREQUENCY – Hz
1G
Figure 1. Frequency Response of AD8001
Figure 2. Transient Response of AD8001; 2 V Step, G = +2
REV. D
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. 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 companies.
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© 2003 Analog Devices, Inc. All rights reserved.
