AD8023 Analog Devices, AD8023 Datasheet

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AD8023

Manufacturer Part Number
AD8023
Description
High Current Output, Triple Video Amplifier
Manufacturer
Analog Devices
Datasheet

Specifications of AD8023

-3db Bandwidth
125MHz
Slew Rate
1.2kV/µs
Vos
2mV
Ib
5µA
# Opamps Per Pkg
3
Input Noise (nv/rthz)
2nV/rtHz
Vcc-vee
4.2V to 15V
Isy Per Amplifier
10mA
Packages
SOIC

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a
Figure 1. Pulse Response Driving a Large Load Capacitor,
C
PRODUCT DESCRIPTION
The AD8023 is a high current output drive, high voltage output
drive, triple video amplifier. Each amplifier has 70 mA of output
current and is optimized for driving large capacitive loads. The
amplifiers are current feedback amplifiers and feature gain
flatness of 0.1 dB to 10 MHz while offering differential gain and
phase error of 0.06% and 0.02°.
REV. 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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
L
FEATURES
Drives 13 V Output
Drives Unlimited Capacitive Load
High Current Output Drive: 70 mA
Excellent Video Specifications (R
Power
High Speed
High Speed Disable Function
Easy to Use
APPLICATIONS
LCD Displays
Video Line Driver
Broadcast and Professional Video
Computer Video Plug-In Boards
Consumer Video
RGB Amplifier in Component Systems
= 300 pF, G = +3, R
Gain Flatness 0.1 dB to 10 MHz
0.06% Differential Gain Error
0.02 Differential Phase Error
Operates on
10.0 mA/Amplifier Max Power Supply Current
250 MHz Unity Gain Bandwidth (3 dB)
1200 V/ s Slew Rate
Fast Settling Time of 35 ns (0.1%)
Turn-Off Time 30 ns
200 mA Short Circuit Current
Output Swing to 1 V of Rails
V
V
IN
O
2.5 V to
F
= 750 Ω , R
7.5 V Supply
S
= 16.9 Ω , R
L
= 150
)
L
= 10 k Ω
The AD8023 uses maximum supply current of 10.0 mA per
amplifier and runs on ± 2.5 V to ± 7.5 V power supply. The
outputs of each amplifier swing to within one volt of either
supply rail to easily accommodate video signals. The AD8023
is unique among current feedback op amps by virtue of its large
capacitive load drive with a small series resistor, while still
achieving rapid settling time. For instance, it can settle to 0.1% in
35 ns while driving 300 pF capacitance.
The bandwidth of 250 MHz along with a 1200 V/µs slew rate
make the AD8023 useful in high speed applications requiring
a single +5 V or dual power supplies up to ± 7.5 V. Further-
more, the AD8023 contains a high speed disable function for
each amplifier in order to power down the amplifier or high
impedance the output. This can then be used in video multi-
plexing applications. The AD8023 is available in the indus-
trial temperature range of –40°C to +85°C.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
V
V
IN
O
DISABLE 1
DISABLE 2
DISABLE 3
R
Figure 2. Output Swing Voltage,
L
OUT 1
= 150 Ω ; V
+IN 1
–IN 1
+V
PIN CONFIGURATION
World Wide Web Site: http://www.analog.com
S
Triple Video Amplifier
High Current Output,
1
2
3
4
5
6
7
14-Lead SOIC
AD8023
S
= ± 7.5 V, G = +10
© Analog Devices, Inc., 2000
14
13
12
11
10
9
8
OUT 2
–IN 2
+IN 2
–V
+IN 3
–IN 3
OUT 3
S
AD8023

Related parts for AD8023

AD8023 Summary of contents

Page 1

... Consumer Video RGB Amplifier in Component Systems PRODUCT DESCRIPTION The AD8023 is a high current output drive, high voltage output drive, triple video amplifier. Each amplifier has output current and is optimized for driving large capacitive loads. The amplifiers are current feedback amplifiers and feature gain flatness of 0 MHz while offering differential gain and phase error of 0.06% and 0.02° ...

Page 2

... – – – + MHz Single Supply Dual Supply MIN MAX Power-Down –2– pF 150 , unless otherwise noted) LOAD AD8023A V Min Typ Max S 125 7 1200 30 –72 2.0 14 0.06 0.02 – – – 111 50 ...

Page 3

... Storage Temperature Range R Package . . . . . . . . . . . . . . . . . . . . . . . . –65°C to +125°C Operating Temperature Range AD8023A . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to +85°C Lead Temperature Range (Soldering 10 sec +300°C *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 ...

Page 4

... AD8023 –IN1 6 7 OUT 1 8 OUT 3 –IN3 9 Typical Performance Characteristics SUPPLY VOLTAGE – Figure 4. Input Common-Mode Voltage Range vs. Supply Voltage METALIZATION PHOTO Contact factory for latest dimensions. Dimensions shown in inches and (mm). +IN DISABLE – ...

Page 5

... Volts Figure 10. Input Offset Voltage vs. Temperature V = 7.5V S 100 0.31 0.1 Figure 11. Closed-Loop Output Resistance vs. Frequency –5– AD8023 – 100 TEMPERATURE – 2. 7.5V S –30 –20 – TEMPERATURE – ...

Page 6

... AD8023 200 100 – I NOISE 10 V NOISE 1 0 FREQUENCY – kHz Figure 12. Input Current and Voltage Noise vs. Frequency 450 400 SOURCE 350 SINK 300 250 –50 –40 –30 –20 – TEMPERATURE – C Figure 13. Short Circuit Current vs. Temperature ...

Page 7

... – + Figure 22. Maximum Slew Rate vs. Supply Voltage Figure 23. Large Signal Pulse Response, = ± 7.5 V) Gain = +10 –7– AD8023 = 2 k Ω 150 Ω ± 7 1600 1400 G = –1 1200 1000 800 600 G = +10 400 200 ...

Page 8

... AD8023 + 7.5V GAIN S 0 – 2.5V – 7.5V S PHASE –3 –4 – 2. +10 – 150 L –7 – FREQUENCY – MHz Figure 24. Closed-Loop Gain and Phase vs. Frequency, = 150 Ω +10 GAIN –1 – 2.5V –3 S –4 PHASE –5 –6 –7 – ...

Page 9

... Table II contains values of feedback and series resistors which result in the best pulse responses. Figure 28 shows the AD8023 driving a 300 pF capacitor through a large voltage step with virtually no overshoot. (In this case, the large and small signal pulse responses are quite similar in appearance.) – ...

Page 10

... For example gain of +10, with 50% overdrive, the recovery time of the AD8023 is about 20 ns (see Figure 31). For higher overdrive, the response is somewhat slower. For 100% overdrive, (in a gain of +10), the recovery time is about 80 ns ...

Page 11

... OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 14-Lead Plastic SOIC (R-14) 0.3444 (8.75) 0.3367 (8.55 0.1574 (4.00) 0.2440 (6.20 0.1497 (3.80) 0.2284 (5.80) 0.0688 (1.75) PIN 1 0.0098 (0.25) 0.0532 (1.35) 0.0040 (0.10) 0.0500 0.0192 (0.49) SEATING 0.0099 (0.25) (1.27) 0.0138 (0.35) PLANE BSC 0.0075 (0.19) –11– AD8023 0.0196 (0.50) x 45° 0.0099 (0.25) 8° 0° 0.0500 (1.27) 0.0160 (0.41) ...

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