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參數資料
| 型號： | AD828 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Dual, Low Power Video Op Amp |
| 中文描述： | 雙通道，低功耗視頻運算放大器 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 256K |
| 代理商： | AD828 |
FUNCTIONAL BLOCK DIAGRAM
1
2
3
4
8
7
6
5
AD828
V+
OUT2
–IN2
+IN2
OUT1
–IN1
+IN1
V–
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.
a
Dual, Low Power
Video Op Amp
AD828
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 2000
FEATURES
Excellent Video Performance
Differential Gain & Phase Error of 0.01% & 0.05
High Speed
130 MHz 3 dB Bandwidth (G = +2)
450 V/ s Slew Rate
80 ns Settling Time to 0.01%
Low Power
15 mA Max Power Supply Current
High Output Drive Capability:
50 mA Minimum Output Current per Amplifier
Ideal for Driving Back Terminated Cables
Flexible Power Supply
Specified for +5 V, 5 V and 15 V Operation
3.2 V Min Output Swing into a 150
(V
S
= 5 V)
Excellent DC Performance
2.0 mV Input Offset Voltage
Available in 8-Lead SOIC and 8-Lead Plastic Mini-DIP
Load
PRODUCT DESCRIPTION
The AD828 is a low cost, dual video op amp optimized for use
in video applications which require gains of +2 or greater and
high output drive capability, such as cable driving. Due to its
low power and single supply functionality, along with excellent
differential gain and phase errors, the AD828 is ideal for power
sensitive applications such as video cameras and professional
video equipment.
With video specs like 0.1 dB flatness to 40 MHz and low differ-
ential gain and phase errors of 0.01% and 0.05
°
, along with
50 mA of output current per amplifier, the AD828 is an excel-
lent choice for any video application. The 130 MHz gain
bandwidth and 450 V/
μ
s slew rate make the AD828 useful in
many high speed applications including: video monitors, CATV,
color copiers, image scanners and fax machines.
1/2
AD828
0.1 F
0.1 F
V
–
V
R
BT
75
75
R
T
75
1k
R
T
75
1k
V
IN
Figure 1. Video Line Driver
The AD828 is fully specified for operation with a single +5 V
power supply and with dual supplies from
±
5 V to
±
15 V. This
power supply flexibility, coupled with a very low supply current
of 15 mA and excellent ac characteristics under all power supply
conditions, make the AD828 the ideal choice for many demand-
ing yet power sensitive applications.
The AD828 is a voltage feedback op amp which excels as a gain
stage (gains >+2) or active filter in high speed and video systems
and achieves a settling time of 45 ns to 0.1%, with a low input
offset voltage of 2 mV max.
The AD828 is available in low cost, small 8-lead plastic mini-
DIP and SOIC packages.
0.04
15
0.07
0.05
0.06
5
10
0.03
0.01
0.02
SUPPLY VOLTAGE
–
Volts
D
–
D
–
DIFF GAIN
DIFF PHASE
Figure 2. Differential Phase vs. Supply Voltage
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