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PDF ADA4860-1 Data sheet ( Hoja de datos )
| Número de pieza | ADA4860-1 | |
| Descripción | Op Amp | |
| Fabricantes | Analog Devices | |
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FEATURES
High speed
800 MHz, −3 dB bandwidth
790 V/μs slew rate
8 ns settling time to 0.5%
Wide supply range: 5 V to 12 V
Low power: 6 mA
0.1 dB flatness: 125 MHz
Differential gain: 0.02%
Differential phase: 0.02°
Low voltage offset: 3.5 mV (typ)
High output current: 25 mA
Power down
APPLICATIONS
Consumer video
Professional video
Broadband video
ADC buffers
Active filters
GENERAL DESCRIPTION
The ADA4860-1 is a low cost, high speed, current feedback op
amp that provides excellent overall performance. The 800 MHz,
−3 dB bandwidth, and 790 V/μs slew rate make this amplifier
well suited for many high speed applications. With its combination
of low price, excellent differential gain (0.02%), differential
phase (0.02°), and 0.1 dB flatness out to 125 MHz, this amplifier
is ideal for both consumer and professional video applications.
The ADA4860-1 is designed to operate on supply voltages as
low as +5 V and up to ±5 V using only 6 mA of supply current.
To further reduce power consumption, the amplifier is
equipped with a power-down feature that lowers the supply
current to 0.25 mA.
The ADA4860-1 is available in a 6-lead SOT-23 package and
is designed to work over the extended temperature range of
−40°C to +105°C.
High Speed, Low Cost,
Op Amp
ADA4860-1
PIN CONFIGURATION
VOUT 1
6 +VS
–VS 2
+–
5 POWER DOWN
+IN 3
4 –IN
Figure 1. 6-Lead SOT-23 (RJ-6)
6.3
G = +2
6.2 VOUT = 2V p-p
RF = RG = 499Ω
6.1
6.0
5.9
5.8 VS = +5V
5.7
5.6
5.5
5.4
5.3
0.1
1 10
FREQUENCY (MHz)
Figure 2. 0.1 dB Flatness
100
VS = ±5V
1000
Rev. 0
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. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.
1 page  
ABSOLUTE MAXIMUM RATINGS
Table 3.
Parameter
Supply Voltage
Power Dissipation
Common-Mode Input Voltage
Differential Input Voltage
Storage Temperature Range
Operating Temperature Range
Lead Temperature
Junction Temperature
Rating
12.6 V
See Figure 3
−VS + 1 V to +VS − 1 V
±VS
−65°C to +125°C
−40°C to +105°C
JEDEC J-STD-20
150°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent 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.
THERMAL RESISTANCE
θJA is specified for the worst-case conditions, that is, θJA is
specified for device soldered in circuit board for surface-mount
packages.
Table 4. Thermal Resistance
Package Type
6-lead SOT-23
θJA
170
Unit
°C/W
Maximum Power Dissipation
The maximum safe power dissipation for the ADA4860-1 is
limited by the associated rise in junction temperature (TJ) on
the die. At approximately 150°C, which is the glass transition
temperature, the plastic changes its properties. Even temporarily
exceeding this temperature limit can change the stresses that the
package exerts on the die, permanently shifting the parametric
performance of the amplifiers. Exceeding a junction temperature of
150°C for an extended period can result in changes in silicon
devices, potentially causing degradation or loss of functionality.
ADA4860-1
The power dissipated in the package (PD) for a sine wave and a
resistor load is the total power consumed from the supply
minus the load power.
PD = Total Power Consumed − Load Power
( )PD = VSUPPLY VOLTAGE × I SUPPLY CURRENT
– VOUT 2
RL
RMS output voltages should be considered.
Airflow across the ADA4860-1 helps remove heat from the
package, effectively reducing θJA. In addition, more metal
directly in contact with the package leads and through holes
under the device reduces θJA.
Figure 3 shows the maximum safe power dissipation in the
package vs. the ambient temperature for the 6-lead SOT-23
(170°C/W) on a JEDEC standard 4-layer board. θJA values are
approximations.
2.0
1.5
1.0
0.5
0
–40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90 100 110
AMBIENT TEMPERATURE (°C)
Figure 3. Maximum Power Dissipation vs. Temperature for a 4-Layer Board
ESD 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 this product 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.
Rev. 0 | Page 5 of 20
5 Page 
2500
2000
VS = ±5V
G = +1
RF = 550Ω
1500
POSITIVE SLEW RATE
1000
500
NEGATIVE SLEW RATE
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
INPUT VOLTAGE (V p-p)
Figure 34. Slew Rate vs. Input Voltage
900
VS = 5V
800
G = +1
RF = 550Ω
700
600
POSITIVE SLEW RATE
500
NEGATIVE SLEW RATE
400
300
200
100
0
0.5 1.0 1.5 2.0
INPUT VOLTAGE (V p-p)
2.5
Figure 35. Slew Rate vs. Input Voltage
1.00
0.75
0.50
0.25
1V
0
–0.25
–0.50
–0.75
–1.00
t = 0s
VIN
VS = ±5V
G = +2
VOUT = 2V p-p
RF = RG = 499Ω
TIME = 5ns/DIV
Figure 36. Settling Time Rising Edge
ADA4860-1
1600
1400
VS = ±5V
G = +2
RF = RG = 499Ω
1200
1000
POSITIVE SLEW RATE
800
NEGATIVE SLEW RATE
600
400
200
0
0 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25
INPUT VOLTAGE (V p-p)
Figure 37. Slew Rate vs. Input Voltage
900
VS = 5V
G = +2
800 RF = RG = 499Ω
700
POSITIVE SLEW RATE
600
500
NEGATIVE SLEW RATE
400
300
200
100
0
0.25 0.50 0.75 1.00
INPUT VOLTAGE (V p-p)
Figure 38. Slew Rate vs. Input Voltage
1.25
1.00
t = 0s
0.75
0.50
0.25
1V
0
–0.25
–0.50
–0.75
–1.00
VS = ±5V
G = +2
VOUT = 2V p-p
RF = RG = 499Ω
TIME = 5ns/DIV
VIN
Figure 39. Settling Time Falling Edge
Rev. 0 | Page 11 of 20
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| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet ADA4860-1.PDF ] | |
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