Data Sheet
FEATURES
High speed
140 MHz bandwidth (3 dB, G = +1)
120 MHz bandwidth (3 dB, G = +2)
35 MHz bandwidth (0.1 dB, G = +2)
2500 V/μs slew rate
25 ns settling time to 0.1% (for a 2 V step)
65 ns settling time to 0.01% (for a 10 V step)
Excellent video performance (R
L
=150 Ω)
0.01% differential gain, 0.01° differential phase
Voltage noise of 1.9 nV/√Hz
Low distortion: THD = −74 dB at 10 MHz
Excellent dc precision: 3 mV max input offset voltage
Flexible operation
Specified for ±5 V and ±15 V operation
±2.3 V output swing into a 75 Ω load (V
S
= ±5 V)
High Performance Video Op Amp
CONNECTION DIAGRAMS
NC
1
–IN
2
+IN
3
–V
S 4
8
7
6
NC
+V
S
OUTPUT
NC
AD811
5
NC = NO CONNECT
Figure 1. 8-Lead Plastic (N-8), CERDIP (Q-8), SOIC-N (R-8)
NC
1
NC
2
–IN
3
NC
4
+IN
5
NC
6
–V
S 7
16
NC
NC
+V
S
NC
OUTPUT
NC
00866-E-002
AD811
15
14
13
12
11
TOP VIEW
10
NC
(Not to Scale)
NC
8
9
NC
APPLICATIONS
Video crosspoint switchers, multimedia broadcast systems
HDTV compatible systems
Video line drivers, distribution amplifiers
ADC/DAC buffers
DC restoration circuits
Medical
Ultrasound
PET
Gamma
Counter applications
MIL-STD-883B parts available
NOTES
1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN.
Figure 2. 16-Lead SOIC-W (RW-16)
NC
NC
NC
NC
3
2
1
20 19
NC
NC
4
NC
5
–IN
6
NC
7
+IN
8
TOP VIEW
(Not to Scale)
9
10 11 12 13
18
NC
NC
+V
S
NC
OUTPUT
00866-E-003
AD811
17
16
15
14
NC
NC
NC
NOTES
1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN.
Figure 3. 20-Terminal LCC (E-20-1)
GENERAL DESCRIPTION
A wideband current feedback operational amplifier, the
is optimized for broadcast-quality video systems. The −3 dB
bandwidth of 120 MHz at a gain of +2 and the differential gain
and phase of 0.01% and 0.01° (R
L
= 150 Ω) make the
an
excellent choice for all video systems. The
is designed to
meet a stringent 0.1 dB gain flatness specification to a bandwidth of
35 MHz (G = +2) in addition to low differential gain and phase
errors. This performance is achieved whether driving one or two
back-terminated 75 Ω cables, with a low power supply current
of 16.5 mA. Furthermore, the
is specified over a power
supply range of ±4.5 V to ±18 V.
The
is also excellent for pulsed applications where
transient response is critical. It can achieve a maximum slew
rate of greater than 2500 V/μs with a settling time of less than
25 ns to 0.1% on a 2 V step and 65 ns to 0.01% on a 10 V step.
The
is ideal as an ADC or DAC buffer in data acquisition
systems due to its low distortion up to 10 MHz and its wide unity
gain bandwidth. Because the
is a current feedback ampli-
fier, this bandwidth can be maintained over a wide range of
gains. The
also offers low voltage and current noise of
1.9 nV/√Hz and 20 pA/√Hz, respectively, and excellent dc
accuracy for wide dynamic range applications.
Rev. F
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
©2014 Analog Devices, Inc. All rights reserved.
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. 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.
–V
S
NC
00866-E-001
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