300 MHz
Current Feedback Amplifier
AD8011
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Easy to Use
Low Power
8-Lead PDIP and SOIC
1 mA Power Supply Current (5 mW on 5 VS)
High Speed and Fast Settling on 5 V
300 MHz, –3 dB Bandwidth (G = +1)
180 MHz, –3 dB Bandwidth (G = +2)
2000 V/s Slew Rate
29 ns Settling Time to 0.1%
Good Video Specifications (RL = 1 k⍀, G = +2)
Gain Flatness 0.1 dB to 25 MHz
0.02% Differential Gain Error
0.06؇ Differential Phase Error
Low Distortion
NC
–IN
+IN
1
2
3
4
8
7
6
5
NC
V+
OUT
NC
V–
AD8011
NC = NO CONNECT
PRODUCT DESCRIPTION
The AD8011 is a very low power, high speed amplifier designed
to operate on +5 V or 5 V supplies. With wide bandwidth,
low distortion, and low power, this device is ideal as a general-
purpose amplifier. It also can be used to replace high speed
amplifiers consuming more power. The AD8011 is a current feed-
back amplifier and features gain flatness of 0.1 dB to 25 MHz
while offering differential gain and phase error of 0.02% and 0.06°
on a single 5 V supply. This makes the AD8011 ideal for profes-
sional video electronics such as cameras, video switchers, or any
high speed portable equipment. Additionally, the AD8011’s low
distortion and fast settling make it ideal for buffering high speed
8-, 10-, and 12-bit A-to-D converters.
–70 dBc Worst Harmonic @ 5 MHz
–62 dBc Worst Harmonic @ 20 MHz
Single Supply Operation
Fully Specified for 5 V Supply
APPLICATIONS
Power Sensitive, High Speed Systems
Video Switchers
Distribution Amplifiers
A-to-D Driver
Professional Cameras
CCD Imaging Systems
Ultrasound Equipment (Multichannel)
The AD8011 offers very low power of 1 mA maximum and can
run on single 5 V to 12 V supplies. All this is offered in a small
8-lead PDIP or 8-lead SOIC package. These features fit well with
portable and battery-powered applications where size and power
are critical.
5
G = +2
4
R
V
= 1k⍀
= +5V OR ؎5V
= 200mV p-p
F
The AD8011 is available in the industrial temperature range of
–40°C to +85°C.
S
3
2
V
OUT
1
–40
0
G = +2
THIRD
–1
–2
–3
R
= 150⍀
L
–60
SECOND
R
= 150⍀
L
–4
–5
1
10
100
500
FREQUENCY (MHz)
THIRD
=1k⍀
–80
R
L
Figure 1. Frequency Response; G = +2, VS = +5 V, or 5 V
SECOND
= 1k⍀
R
L
–100
10
20
FREQUENCY (MHz)
REV. C
Figure 2. Distortion vs. Frequency; VS = 5 V
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