APPLICATIONS
Power Sensitive, High Speed Systems
Video Switchers
Distribution Amplifiers
A-to-D Driver
Professional Cameras
CCD Imaging Systems
Ultrasound Equipment (Multichannel)
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
)
S
Current Feedback Amplifier
AD8011*
FUNCTIONAL BLOCK DIAGRAM
8-Lead Plastic DIP and SOIC
NC
1
2
–IN
3
+IN
4
V–
AD8011
NC = NO CONNECT
amplifier. It also can be used to replace high-speed amplifiers
consuming more power. The AD8011 is a current feedback
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 professional 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-, 12-bit A-to-D converters.
The AD8011 offers very low power of 1 mA max and can run
on single +5 V to +12 V supplies. All this is offered in a small
8-lead plastic DIP or 8-lead SOIC package. These features fit
well with portable and battery-powered applications where size
and power are critical.
The AD8011 is available in the industrial temperature range of –
40°C to +85°C.
8
NC
V+
7
OUT
6
NC
5
+5
G = +2
+4
= 1k⍀
R
F
= +5V OR ⴞ5V
V
S
NORMALIZED GAIN – dB
+3
+2
+1
–1
–2
–3
–4
–5
0
1
V
OUT
= 200mV p-p
10
FREQUENCY – MHz
100500
Figure 1. Frequency Response; G = +2, VS = +5 V or ±5 V
*Protected under Patent Number 5,537,079.
REV. B
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.
Storage Temperature Range (N, R) . . . . . . . . –65°C to +125°C
Operating Temperature Range (A Grade) . . . –40°C to +85°C
Lead Temperature Range (Soldering 10 sec) . . . . . . . . +300°C
NOTES
1
Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
The maximum power that can be safely dissipated by the
AD8011 is limited by the associated rise in junction temperature. The maximum safe junction temperature for plastic
encapsulated devices is determined by the glass transition temperature of the plastic, approximately +150°C. Exceeding this
limit temporarily may cause a shift in parametric performance
due to a change in the stresses exerted on the die by the package.
Exceeding a junction temperature of +175°C for an extended
period can result in device failure.
While the AD8011 is internally short circuit protected, this
may not be sufficient to guarantee that the maximum junction
temperature is not exceeded under all conditions. To ensure
proper operation, it is necessary to observe the maximum power
derating curves (shown below in Figure 3).
2.0
TJ = +150ⴗC
8-LEAD PLASTIC DIP PACKAGE
1.5
1.0
8-LEAD SOIC PACKAGE
0.5
MAXIMUM POWER DISSIPATION – Watts
0
–50 –40 –30 –20 –10 0 10203040 5060708090
AMBIENT TEMPERATURE – ⴗC
Figure 3. Maximum Power Dissipation vs. Temperature
ORDERING GUIDE
TemperaturePackagePackage
ModelRangeDescriptionOption
AD8011AN–40°C to +85°C8-Lead Plastic DIPN-8
AD8011AR–40°C to +85°C8-Lead SOICSO-8
AD8011AR-REEL–40°C to +85°C13" Tape and ReelSO-8
AD8011AR-REEL7–40°C to +85°C7" Tape and ReelSO-8
AD8011-EBEvaluation Bo
ard
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD8011 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
–4–
REV. B
AD8011
1k⍀1k⍀
V
IN
50⍀
0.01F
0.01F
10F
10F
R
L
1k⍀
V
OUT
+V
S
–V
S
V
IN
Figure 4. Test Circuit; Gain = +2
1k⍀
52.3⍀
1k⍀
0.01F
0.01F
10F
10F
Figure 7. Test Circuit; Gain = –1
R
1k⍀
V
OUT
L
+V
S
–V
S
Figure 5.* 100 mV Step Response; G = +2, VS = ±2.5 V or ±5 V
Figure 6.* Step Response; G = +2, VS = ±2.5 V (2 V
±
Step) and
*NOTE: VS = ±2.5 V operation is identical to VS = +5 V single supply operation.
5 V (4 V Step)
Figure 8.* 100 mV Step Response; G = –1, VS = ±2.5 V or ±5 V
Figure 9.* Step Response; G = –1, VS = ±2.5 V (2 V
±
Step) and
5 V (4 V Step)
REV. B
–5–
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