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PDF AD811 Data sheet ( Hoja de datos )
| Número de pieza | AD811 | |
| Descripción | High Performance Video Op Amp | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Data Sheet
High Performance Video Op Amp
AD811
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 (RL =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 (VS = ±5 V)
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
GENERAL DESCRIPTION
A wideband current feedback operational amplifier, the AD811
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° (RL = 150 Ω) make the AD811 an
excellent choice for all video systems. The AD811 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 AD811 is specified over a power
supply range of ±4.5 V to ±18 V.
CONNECTION DIAGRAMS
NC 1
–IN 2
+IN 3
–VS 4
AD811
8 NC
7 +VS
6 OUTPUT
5 NC
NC = NO CONNECT
Figure 1. 8-Lead Plastic (N-8), CERDIP (Q-8), SOIC-N (R-8)
NC 1
NC 2
16 NC
AD811 15 NC
–IN 3
NC 4
14 +VS
13 NC
+IN 5
12 OUTPUT
NC 6
11 NC
–VS 7 TOP VIEW 10 NC
NC 8 (Not to Scale) 9 NC
NOTES
1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN.
Figure 2. 16-Lead SOIC-W (RW-16)
NC 4
NC 5
–IN 6
NC 7
+IN 8
3 2 1 20 19
AD811
TOP VIEW
(Not to Scale)
9 10 11 12 13
18 NC
17 NC
16 +VS
15 NC
14 OUTPUT
NOTES
1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN.
Figure 3. 20-Terminal LCC (E-20-1)
The AD811 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 AD811 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 AD811 is a current feedback ampli-
fier, this bandwidth can be maintained over a wide range of
gains. The AD811 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
Document Feedback
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
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.
Technical Support
www.analog.com
1 page  
AD811
Parameter
INPUT VOLTAGE NOISE
INPUT CURRENT NOISE
OUTPUT CHARACTERISTICS
Voltage Swing, Useful Operating
Range5
Output Current
Short-Circuit Current
Output Resistance
INPUT CHARACTERISTIC
+Input Resistance
−Input Resistance
Input Capacitance
Common-Mode Voltage Range
POWER SUPPLY
Operating Range
Quiescent Current
TRANSISTOR COUNT
Conditions
f = 1 kHz
f = 1 kHz
VS
±5 V
TJ = 25°C
±15 V
(Open Loop at 5 MHz)
+Input
±5 V
±15 V
Number of Transistors
±5 V
±15 V
1 The AD811JR is specified with ±5 V power supplies only, with operation up to ±12 V.
2 See the Analog Devices military data sheet for 883B tested specifications.
3 FPBW = slew rate/(2 π VPEAK).
4 Output power level, tested at a closed-loop gain of two.
5 Useful operating range is defined as the output voltage at which linearity begins to degrade.
Data Sheet
AD811J/A1
Min Typ Max
1.9
20
AD811S2
Min Typ Max
1.9
20
Unit
nV/√Hz
pA/√Hz
±2.9 ±2.9 V
±12 ±12 V
100 100 mA
150 150 mA
9 9Ω
1.5 1.5 MΩ
14 14 Ω
7.5 7.5 pF
±3 ±3 V
±13 ±13 V
±4.5 ±18 ±4.5
±18 V
14.5 16.0
14.5 16.0 mA
16.5 18.0
16.5 18.0 mA
40 40
Rev. F | Page 4 of 20
5 Page 
AD811
26
G = +1
23 RL = 150Ω
20
VS = ±15V
RFB = 511Ω
17
VS = ±5V
14 RFB = 442Ω
11
8
1 10 100
FREQUENCY (MHz)
Figure 29. Closed-Loop Gain vs. Frequency, Gain = +10
100
VIN 90
1V
20ns
VOUT 10
0%
10V
Figure 30. Large Signal Pulse Response, Gain = +10
RFB
VIN RG
HP8130
PULSE
GENERATOR
+VS
2–
7
AD811
3+
4
0.1µF
6
VOUT TO
TEKTRONIX
P6201 FET
PROBE
RL
0.1µF
–VS
Figure 31. Inverting Amplifier Connection
100
VIN 90
1V
Data Sheet
10ns
VOUT 10
0%
1V
Figure 32. Small Signal Pulse Response, Gain = −1
100
VIN 90
100mV
10ns
VOUT 10
0%
1V
Figure 33. Small Signal Pulse Response, Gain = −10
6
G = –1
3 RL = 150Ω
0
VS = ±15V
RFB = 590Ω
–3
VS = ±5V
–6 RFB = 562Ω
–9
–12
1
10 100
FREQUENCY (MHz)
Figure 34. Closed-Loop Gain vs. Frequency, Gain = −1
Rev. F | Page 10 of 20
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet AD811.PDF ] | |
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