AD813AR-14 ,Single Supply, Low Power Triple Video AmplifierSpecifications (R = 150 V)L 13 –IN2DISABLE2 2Gain Flatness 0.1 dB to 50 MHz+IN2DISABLE3 3 120.03% D ..
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AD813AN-AD813AR-14
Single Supply, Low Power Triple Video Amplifier
REV. B
Single Supply, Low Powerriple Video Amplifier
PIN CONFIGURATION
14-Lead DIP and SOIC
DISABLE1
DISABLE2
OUT2
–IN2
+IN1
–IN1
OUT1
DISABLE3
VS+
+IN2
VS–
+IN3
–IN3
OUT3
FEATURES
Low Cost
Three Video Amplifiers in One Package
Optimized for Driving Cables in Video Systems
Excellent Video Specifications (RL = 150 V)
Gain Flatness 0.1 dB to 50 MHz
0.03% Differential Gain Error
0.068 Differential Phase Error
Low Power
Operates on Single +3 V to 615 V Power Supplies
5.5 mA/Amplifier Max Power Supply Current
High Speed
125 MHz Unity Gain Bandwidth (–3 dB)
500 V/ms Slew Rate
High Speed Disable Function per Channel
Turn-Off Time 80 ns
Easy to Use
50 mA Output Current
Output Swing to 1 V of Rails
APPLICATIONS
Video Line Driver
LCD Drivers
Computer Video Plug-In Boards
Ultrasound
RGB Amplifier
CCD Based SystemsMHz while offering differential gain and phase error of
0.03% and 0.06°. This makes the AD813 ideal for broadcast
and consumer video electronics.
The AD813 offers low power of 5.5 mA per amplifier max and
runs on a single +3 V power supply. The outputs of each ampli-
fier swing to within one volt of either supply rail to easily accom-
modate video signals. While operating on a single +5 V supply
the AD813 still achieves 0.1 dB flatness to 20 MHz and 0.05%
& 0.05° of differential gain and phase performance. All this is
offered in a small 14-lead plastic DIP or SOIC package. These
features make this triple amplifier ideal for portable and battery
powered applications where size and power are critical.
The outstanding bandwidth of 125 MHz along with 500 V/μs of
slew rate make the AD813 useful in many general purpose, high
speed applications where a single +3 V or dual power supplies
up to ±15 V are needed. Furthermore the AD813 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 multiplexing applications. The AD813 is avail-
able in the industrial temperature range of –40°C to +85°C in
plastic DIP and SOIC packages as well as chips.
PRODUCT DESCRIPTIONThe AD813 is a low power, single supply triple video amplifier.
Each of the three current feedback amplifiers has 50 mA of output
current, and is optimized for driving one back-terminated video
load (150 Ω). The AD813 features gain flatness of 0.1 dB to
Figure 2.Channel Switching Characteristics for a 3:1 Mux
Figure 1.Fine ScaleGainFlatnessvs.Frequency,
G=+2,RL=150Ω
NOISE/HARMONIC PERFORMANCE
DC PERFORMANCE
Dual Supply(@ TA = +258C, RL = 150 V, unless otherwise noted)
DISABLE CHARACTERISTICS
NOTES
1Slew rate measurement is based on 10% to 90% rise time in the specified closed-loop gain.
Specifications subject to change without notice.
AD813
AD813–SPECIFICATIONS
Single Supply(@ TA = +258C, RL = 150 V, unless otherwise noted)
ORDERING GUIDE*Refer to official DSCC drawing for tested specifications and pin configuration.
ABSOLUTE MAXIMUM RATINGS1SupplyVoltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18V
InternalPowerDissipation2
Plastic(N) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6Watts
SmallOutline(R) . . . . . . . . . . . . . . . . . . . . . . . . . 1.0Watts
Input Voltage (Common Mode) . . . . . . . . . . . . . . . . . . . ±VS
DifferentialInputVoltage . . . . . . . . . . . . . . . . . . . . . . . . ±6V
Output Short Circuit Duration
. . . . . . . . . . . . . . . . . . . . . . .Observe Power Derating Curves
Storage Temperature Range N, R . . . . . . . . –65°C to +125°C
Operating Temperature Range
AD813A . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to +85°C
Lead Temperature Range (Soldering10sec) . . . . . . . +300°C
NOTESStresses 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.Specification is for device in free air:
14-Lead Plastic DIP Package: θJA = 75°C/W
14-Lead SOIC Package: θJA = 120°C/W
AD813DISABLE CHARACTERISTICS
NOTES
1Slew rate measurement is based on 10% to 90% rise time in the specified closed-loop gain.
2Single supply differential gain and phase are measured with the ac coupled circuit of Figure 52.
Specifications subject to change without notice.
AD813
METALIZATION PHOTODimensions shown in inches and (mm).
AMBIENT TEMPERATURE – C
MAXIMUM POWER DISSIPATION – WattsFigure 3.Maximum Power Dissipation vs. Ambient
Temperature
Maximum Power DissipationThe maximum power that can be safely dissipated by the
AD813 is limited by the associated rise in junction temperature.
The maximum safe junction temperature for the plastic encap-
sulated parts is determined by the glass transition temperature
of the plastic, about 150°C. Exceeding this limit temporarily
may cause a shift in parametric performance due to a change in
the stresses exerted on the die by the package. Exceeding a
junction temperature of 175°C for an extended period can result
in device failure.
While the AD813 is internally short circuit protected, this may
not be enough to guarantee that the maximum junction tem-
perature (150°C) is not exceeded under all conditions. To
ensure proper operation, it is important to observe the derating
curves.
It must also be noted that in (noninverting) gain configurations
(with low values of gain resistor), a high level of input overdrive
can result in a large input error current, which may result in a
significant power dissipation in the input stage. This power
must be included when computing the junction temperature rise
due to total internal power.
CAUTIONESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD813 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.
+IN2
+IN3VS–
VS–
VS–
9 –IN3
8 OUT3
–IN1
+IN1
VS+
DISABLE1 1
OUT2 14
–IN2 13
7 OUT1
DISABLE2 2
DISABLE3
Figure 5.Output Voltage Swing vs. Supply VoltageFigure 8Supply Current vs. Supply Voltage at Low
Voltages
Figure 4.Input Common-Mode Voltage Range vs.
Supply Voltage
Figure 7.Supply Current vs. Junction Temperature
02015
SUPPLY VOLTAGE – 6Volts
OUTPUT VOLTAGE – V p-p
SUPPLY VOLTAGE – 6Volts
COMMON-MODE VOLTAGE RANGE –
Volts
INPUT BIAS CURRENT –
JUNCTION TEMPERATURE – C
JUNCTION TEMPERATURE – C
SUPPLY CURRENT – mA1010010k1k
LOAD RESISTANCE – V
OUTPUT VOLTAGE – V p-p
AD813Figure 10.Input Offset Voltage vs. Junction
Temperature
Figure 13.Linear Output Current vs. Supply Voltage
100k100M10M1M10k
FREQUENCY – Hz
CLOSED-LOOP OUTPUT RESISTANCE – Figure 14.Closed-Loop Output Resistance vs.
Frequency
Figure 11.Short Circuit Current vs. Junction
Temperature
JUNCTION TEMPERATURE – C
SHORT CIRCUIT CURRENT – mA100M10M100k
10k
100k
FREQUENCY – Hz
OUTPUT RESISTANCE – 501510
SUPPLY VOLTAGE – 6Volts
OUTPUT CURRENT – mA
JUNCTION TEMPERATURE – C
OUTPUT CURRENT – mA
INPUT OFFSET VOLTAGE – mV
JUNCTION TEMPERATURE – C
Figure 19.Open-Loop Transimpedance vs. Frequency
(Relative to 1 Ω)
Figure 16.Input Current and Voltage Noise vs.
Frequency
Figure 20.Harmonic Distortion vs. FrequencyFigure 17.Common-Mode Rejection vs. Frequency
SETTLING TIME – ns
OUTPUT SWING FROM
V TO 0
FREQUENCY – Hz
POWER SUPPLY REJECTION – dB
10k100k100M10M1M
100100100k10k1k
FREQUENCY – Hz
VOLTAGE NOISE – nV/ Hz
CURRENT NOISE – pA/ Hz
10k100k100M10M1M
FREQUENCY – Hz
COMMON-MODE REJECTION – dB
10k100k100M10M1M
FREQUENCY – Hz
TRANSIMPEDANCE – dB
PHASE – Degrees
FREQUENCY – Hz
HARMONIC DISTORTION – dBc–13010k100k1M10M100M
–90
AD813Figure 22.Slew Rate vs. Output Step Size
Figure 26.Small Signal Pulse Response, Gain = +1,
(RF = 750 Ω, RL = 150 Ω, VS = ±5 V)
Figure 23.Large Signal Pulse Response, Gain = +1,
(RF = 750 Ω, RL = 150 Ω, VS = ±5 V)
Figure 25.Maximum Slew Rate vs. Supply VoltageAAAA
VIN
VOUT101000100
FREQUENCY – MHz
CLOSED-LOOP GAIN – dB
+90
PHASE SHIFT – Degrees
VIN
VOUT
SUPPLY VOLTAGE – 6Volts
–3dB BANDWIDTH – MHz
SUPPLY VOLTAGE – 6Volts
SLEW RATE – V/
15.01.5013.512.010.59.07.56.04.53.0
