AD812 Fast Delivery |IC PHOENIX CO.,LIMITED

AD812 ,Dual, Current Feedback Low Power Op AmpSPECIFICATIONSDual Supply (@ T = +258C, R = 150 V, unless otherwise noted)A LModel ..
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AD812
Dual, Current Feedback Low Power Op Amp
aDual, Current Feedback
Low Power Op Amp
PIN CONFIGURATION
8-Lead Plastic
Mini-DIP and SOIC
REV. B
FEATURES
Two Video Amplifiers in One 8-Lead SOIC Package
Optimized for Driving Cables in Video Systems
Excellent Video Specifications (RL = 150 V):
Gain Flatness 0.1 dB to 40 MHz
0.02% Differential Gain Error
0.028 Differential Phase Error
Low Power
Operates on Single +3 V Supply
5.5 mA/Amplifier Max Power Supply Current
High Speed
145 MHz Unity Gain Bandwidth (3 dB)
1600 V/ms Slew Rate
Easy to Use
50 mA Output Current
Output Swing to 1 V of Rails (150 V Load)
APPLICATIONS
Video Line Driver
Professional Cameras
Video Switchers
Special Effects
PRODUCT DESCRIPTION
The AD812 is a low power, single supply, dual video amplifier.
Each of the amplifiers have 50 mA of output current and are
optimized for driving one back-terminated video load (150 W)
each. Each amplifier is a current feedback amplifier and fea-
tures gain flatness of 0.1 dB to 40 MHz while offering differen-
tial gain and phase error of 0.02% and 0.02°. This makes the
AD812 ideal for professional video electronics such as cameras
and video switchers.
–0.61M100M10M
NORMALIZED GAIN – dB
100k
FREQUENCY – Hz
0.4
Figure 1.Fine-Scale Gain Flatness vs. Frequency, Gain
= +2, RL = 150 W
The AD812 offers low power of 4.0 mA per amplifier max (VS =
+5 V) and can run on a single +3 V power supply. The outputs
of each amplifier swing to within one volt of either supply rail to
easily accommodate video signals of 1 V p-p. Also, at gains of
+2 the AD812 can swing 3 V p-p on a single +5 V power sup-
ply. All this is offered in a small 8-lead plastic DIP or 8-lead
SOIC package. These features make this dual amplifier ideal
for portable and battery powered applications where size and
power is critical.
The outstanding bandwidth of 145 MHz along with 1600 V/ms
of slew rate make the AD812 useful in many general purpose
high speed applications where a single +5 V or dual power sup-
plies up to –15 V are available. The AD812 is available in the
industrial temperature range of –40°C to +85°C.
SUPPLY VOLTAGE – 6Volts
DIFFERENTIAL PHASE – Degrees
DIFFERENTIAL GAIN – %
Figure 2.Differential Gain and Phase vs. Supply Voltage,
Gain = +2, RL = 150 W
DYNAMIC PERFORMANCE
NOISE/HARMONIC PERFORMANCE
DC PERFORMANCE
INPUT CHARACTERISTICS
(@ TA = +258C, RL = 150 V, unless otherwise noted)Dual SupplyAD812–SPECIFICATIONS
POWER SUPPLY
NOTESSlew rate measurement is based on 10% to 90% rise time in the specified closed-loop gain.
Specifications subject to change without notice.
Single Supply
DYNAMIC PERFORMANCE
NOISE/HARMONIC PERFORMANCE
AD812
(@ TA = +258C, RL = 150 V, unless otherwise noted)
DC PERFORMANCE
INPUT CHARACTERISTICS
MATCHING CHARACTERISTICS
AD812–SPECIFICATIONS
Single Supply (Continued)
MAXIMUM POWER DISSIPATION
The maximum power that can be safely dissipated by the
AD812 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 AD812 is internally short circuit protected, this may
not be sufficient to guarantee that the maximum junction tem-
perature (150 degrees) 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 high (noninverting) gain configura-
tions (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 tempera-
ture rise due to total internal power.
MAXIMUM POWER DISSIPATION – Watts
AMBIENT TEMPERATURE – 8C
0.5
Figure 3.Plot of Maximum Power Dissipation vs.
Temperature
ABSOLUTE MAXIMUM RATINGS1
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .–18 V
Internal Power Dissipation2
Plastic (N) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.3 Watts
Small Outline (R) . . . . . . . . . . . . . . . . . . . . . . . . . .0.9 Watts
Input Voltage (Common Mode) . . . . . . . . . . . . . . . . . . . .–VS
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . .–1.2 V
Output Short Circuit Duration
. . . . . . . . . . . . . . . . . . . . . .Observe Power 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
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: 8-lead plastic package: qJA = 90°C/Watt;
8-lead SOIC package: qJA = 150°C/Watt.
ORDERING GUIDE
AD812AR
AD812AR-REEL
METALIZATION PHOTO
Dimensions shown in inches and (mm).
OUT2
–IN2
–IN1
+IN1
OUT1
5 +IN2
4 V–
(1.37)
CAUTION
ESD (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 AD812 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.
02015SUPPLY VOLTAGE – 6Volts
COMMON-MODE VOLTAGE RANGE –
Volts
Figure 4.Input Common-Mode Voltage Range vs. Supply
Voltage02015
SUPPLY VOLTAGE – 6Volts
OUTPUT VOLTAGE – V p-p
Figure 5.Output Voltage Swing vs. Supply Voltage1010010k1k
LOAD RESISTANCE – V
OUTPUT VOLTAGE – Volts p-p
Figure 6.Output Voltage Swing vs. Load Resistance
JUNCTION TEMPERATURE – 8C
TOTAL SUPPLY CURRENT – mA
Figure 7.Total Supply Current vs. Junction Temperature20141210864
SUPPLY VOLTAGE – 6Volts
TOTAL SUPPLY CURRENT – mA
Figure 8.Total Supply Current vs. Supply Voltage
INPUT BIAS CURRENT –
JUNCTION TEMPERATURE – 8C
Figure 9.Input Bias Current vs. Junction Temperature
AD812–Typical Performance Characteristics
INPUT OFFSET VOLTAGE – mV
JUNCTION TEMPERATURE – 8C
Figure 10.Input Offset Voltage vs. Junction Temperature
JUNCTION TEMPERATURE – 8C
SHORT CIRCUIT CURRENT – mA
Figure 11.Short Circuit Current vs. Junction Temperature
JUNCTION TEMPERATURE – 8C
OUTPUT CURRENT – mA
Figure 12.Linear Output Current vs. Junction Temperature501510
SUPPLY VOLTAGE – 6Volts
OUTPUT CURRENT – mA
Figure 13.Linear Output Current vs. Supply Voltage
100k100M10M1M10k
FREQUENCY – Hz
CLOSED-LOOP OUTPUT RESISTANCE –
Figure 14.Closed-Loop Output Resistance vs. Frequency
100k1M100M10M
FREQUENCY – Hz
OUTPUT VOLTAGE – V p-p
Figure 15.Large Signal Frequency Response
AD812
10010100100k10k1k
FREQUENCY – Hz
VOLTAGE NOISE – nV/ Hz
CURRENT NOISE – pA/ Hz
Figure 16.Input Current and Voltage Noise vs. Frequency
10k100k100M10M1M
FREQUENCY – Hz
COMMON-MODE REJECTION – dB
Figure 17.Common-Mode Rejection vs. Frequency
FREQUENCY – Hz
POWER SUPPLY REJECTION – dB10k100k100M10M1M
Figure 18.Power Supply Rejection vs. Frequency
10k100k100M10M1M
FREQUENCY – Hz
TRANSIMPEDANCE – dB
PHASE – Degrees
Figure 19.Open-Loop Transimpedance vs. Frequency
(Relative to 1 W)
FREQUENCY – Hz
HARMONIC DISTORTION – dBc
10k100k1M10M100M
–90
Figure 20.Harmonic Distortion vs. Frequency
SETTLING TIME – ns
OUTPUT SWING FROM
V TO 0
–103050
Figure 21.Output Swing and Error vs. Settling Time

Partno	Mfg	Dc	Qty	Available	Descript
AD812	AD	N/a	1000	avai	Dual, Current Feedback Low Power Op Amp