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AD828ARZ-REEL ADI芯片 电子元器件中文版规格手册.pdf
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AD828ARZ-REEL ADI芯片 电子元器件中文版规格手册
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REV. C
a
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. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700www.analog.com
Fax: 781/326-8703 © Analog Devices, Inc., 2002
AD828
Dual, Low Power
Video Op Amp
FEATURES
Excellent Video Performance
Differential Gain and Phase Error of 0.01% and 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 Load
(V
S
= 5 V)
Excellent DC Performance
2.0 mV Input Offset Voltage
Available in 8-Lead SOIC and 8-Lead Plastic Mini-DIP
FUNCTIONAL BLOCK DIAGRAM
1
2
3
4
8
7
6
5
AD828
V+
OUT2
–IN2
+IN2
OUT1
–IN1
+IN1
V–
GENERAL DESCRIPTION
The AD828 is a low cost, dual video op amp optimized for use
in video applications that 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
differential gain and phase errors of 0.01% and 0.05°, along
with 50 mA of output current per amplifier, the AD828 is an
excellent choice for any video application. The 130 MHz gain
bandwidth and 450 V/µs 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
0.1F
0.1F
+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 that 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
510
0.03
0.01
0.02
SUPPLY VOLTAGE – V
DIFFERENTIAL PHASE – Degrees
DIFFERENTIAL GAIN – Percent
DIFF GAIN
DIFF PHASE
Figure 2. Differential Phase vs. Supply Voltage
REV. C–2–
AD828–SPECIFICATIONS
(@ T
A
= 25C, unless otherwise noted.)
Parameter Conditions V
S
Min Typ Max Unit
DYNAMIC PERFORMANCE
–3 dB Bandwidth Gain = +2 ±5 V 60 85 MHz
±15 V 100 130 MHz
0, +5 V 30 45 MHz
Gain = –1 ±5 V 35 55 MHz
±15 V 60 90 MHz
0, +5 V 20 35 MHz
Bandwidth for 0.1 dB Flatness Gain = +2 ±5 V 30 43 MHz
C
C
= 1 pF ± 15 V 30 40 MHz
0, +5 V 10 18 MHz
Gain = –1 ±5 V 15 25 MHz
C
C
= 1 pF ± 15 V 30 50 MHz
0, +5 V 10 19 MHz
Full Power Bandwidth
*
V
OUT
= 5 V p-p
R
LOAD
= 500 Ω±5 V 22.3 MHz
V
OUT
= 20 V p-p
R
LOAD
= 1 kΩ±15 V 7.2 MHz
Slew Rate R
LOAD
= 1 kΩ±5 V 300 350 V/µs
Gain = –1 ±15 V 400 450 V/µs
0, +5 V 200 250 V/µs
Settling Time to 0.1% –2.5 V to +2.5 V ±5 V 45 ns
0 V–10 V Step, A
V
= –1 ±15 V 45 ns
Settling Time to 0.01% –2.5 V to +2.5 V ± 5 V 80 ns
0 V–10 V Step, A
V
= –1 ±15 V 80 ns
NOISE/HARMONIC PERFORMANCE
Total Harmonic Distortion F
C
= 1 MHz ±15 V –78 dB
Input Voltage Noise f = 10 kHz ±5 V, ±15 V 10 nV/√Hz
Input Current Noise f = 10 kHz ±5 V, ±15 V 1.5 pA/√Hz
Differential Gain Error NTSC ±15 V 0.01 0.02 %
(R
L
= 150 Ω) Gain = +2 ±5 V 0.02 0.03 %
0, +5 V 0.08 %
Differential Phase Error NTSC ±15 V 0.05 0.09 Degrees
(R
L
= 150 Ω) Gain = +2 ±5 V 0.07 0.1 Degrees
0, +5 V 0.1 Degrees
DC PERFORMANCE
Input Offset Voltage ±5 V, ±15 V 0.5 2 mV
T
MIN
to T
MAX
3mV
Offset Drift 10 µV/°C
Input Bias Current ±5 V, ±15 V 3.3 6.6 µA
T
MIN
10 µA
T
MAX
4.4 µA
Input Offset Current ±5 V, ±15 V 25 300 nA
T
MIN
to T
MAX
500 nA
Offset Current Drift 0.3 nA/°C
Open-Loop Gain V
OUT
= ±2.5 V ±5 V
R
LOAD
= 500 Ω 35 V/mV
T
MIN
to T
MAX
2 V/mV
R
LOAD
= 150 Ω 24 V/mV
V
OUT
= ±10 V ±15 V
R
LOAD
= 1 kΩ 5.5 9 V/mV
T
MIN
to T
MAX
2.5 V/mV
V
OUT
= ±7.5 V ±15 V
R
LOAD
= 150 Ω (50 mA Output) 3 5 V/mV
INPUT CHARACTERISTICS
Input Resistance 300 kΩ
Input Capacitance 1.5 pF
Input Common-Mode Voltage Range ±5 V +3.8 +4.3 V
–2.7 –3.4 V
±15 V +13 +14.3 V
–12 –13.4 V
0, +5 V +3.8 +4.3 V
+1.2 +0.9 V
Common-Mode Rejection Ratio V
CM
= +2.5 V, T
MIN
to T
MAX
±5 V 82 100 dB
V
CM
= ±12 V ±15 V 86 120 dB
T
MIN
to T
MAX
±15 V 84 100 dB
Parameter Conditions V
S
Min Typ Max Unit
OUTPUT CHARACTERISTICS
Output Voltage Swing R
LOAD
= 500 Ω±5 V 3.3 3.8 ± V
R
LOAD
= 150 Ω±5 V 3.2 3.6 ± V
R
LOAD
= 1 kΩ±15 V 13.3 13.7 ±V
R
LOAD
= 500 Ω±15 V 12.8 13.4 ±V
1.5
R
LOAD
= 500 Ω 0, +5 V 3.5 ±V
Output Current ±15 V 50 mA
±5 V 40 mA
0, +5 V 30 mA
Short Circuit Current ±15 V 90 mA
Output Resistance Open-Loop 8 Ω
MATCHING CHARACTERISTICS
Dynamic
Crosstalk f = 5 MHz ±15 V –80 dB
Gain Flatness Match G = +1, f = 40 MHz ±15 V 0.2 dB
Skew Rate Match G = –1 ±15 V 10 V/µs
DC
Input Offset Voltage Match T
MIN
to T
MAX
±5 V, ±15 V 0.5 2 mV
Input Bias Current Match T
MIN
to T
MAX
±5 V, ±15 V 0.06 0.8 µA
Open-Loop Gain Match V
O
= ±10 V, R
L
= 1 kΩ, T
MIN
to T
MAX
±15 V 0.01 0.15 mV/V
Common-Mode Rejection Ratio Match V
CM
= ±12 V, T
MIN
to T
MAX
±15 V 80 100 dB
Power Supply Rejection Ratio Match ±5 V to ±15 V, T
MIN
to T
MAX
80 100 dB
POWER SUPPLY
Operating Range Dual Supply ±2.5 ± 18 V
Single Supply +5 +36 V
Quiescent Current ±5 V 14.0 15 mA
T
MIN
to T
MAX
±5 V 14.0 15 mA
T
MIN
to T
MAX
±5 V 15 mA
Power Supply Rejection Ratio V
S
= ±5 V to ±15 V, T
MIN
to T
MAX
80 90 dB
*Full power bandwidth = slew rate/2 π V
PEAK
.
Specifications subject to change without notice.
ABSOLUTE MAXIMUM RATINGS
1
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18 V
Internal Power Dissipation
2
Plastic DIP (N) . . . . . . . . . . . . . . . . . . See Derating Curves
Small Outline (R) . . . . . . . . . . . . . . . . . See Derating Curves
Input Voltage (Common Mode) . . . . . . . . . . . . . . . . . . . . ±V
S
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . ±6 V
Output Short Circuit Duration . . . . . . . . See Derating Curves
Storage Temperature Range (N, R) . . . . . . . . –65°C to +125°C
Operating Temperature Range . . . . . . . . . . . . –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.
2
Specification is for device in free air:
8-Lead Plastic DIP Package: θ
JA
= 100°C/W
8-Lead SOIC Package: θ
JA
= 155°C/W
2.0
0
–50 90
1.5
0.5
–30
1.0
50 703010–10 80–40 40 60200–20
AMBIENT TEMPERATURE – C
MAXIMUM POWER DISSIPATION – Watts
8-LEAD MINI-DIP PACKAGE
8-LEAD SOIC PACKAGE
T
J
= 150C
Figure 3. Maximum Power Dissipation vs.
Temperature for Different Package Types
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 AD828 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.
WARNING!
ESD SENSITIVE DEVICE
REV. C
AD828
–3–
ORDERING GUIDE
Temperature Package Package
Model Range Description Option
AD828AN –40°C to +85°C 8-Lead Plastic DIP N-8
AD828AR –40°C to +85°C 8-Lead Plastic SOIC SO-8
AD828AR-REEL7 –40°C to +85°C 7" Tape and Reel SO-8
AD828AR-REEL –40°C to +85°C 13" Tape and Reel SO-8
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