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AD8041AR-REEL7
12.6V; 160MHz rail-to-rail amplifier with disable. For power sensitive high speed systems, video switches, distribution amplifiers, A/D driver
CONNECTION DIAGRAM
8-Lead DIP and SOICREV.A
160 MHz Rail-to-Rail
Amplifier with Disable
FEATURES
Fully Specified for +3 V, +5 V, and �5 V Supplies
Output Swings Rail to Rail
Input Voltage Range Extends 200mV Below Ground
No Phase Reversal with Inputs 1V Beyond Supplies
Disable/Power-Down Capability
Low Power of 5.2 mA (26 mW on 5 V)
High Speed and Fast Settling on 5 V:
160 MHz –3 dB Bandwidth (G = +1)
160 V/�s Slew Rate
30 ns Settling Time to 0.1%
Good Video Specifications (RL = 150 �, G = +2)
Gain Flatness of 0.1 dB to 30 MHz
0.03% Differential Gain Error
0.03� Differential Phase Error
Low Distortion
–69 dBc Worst Harmonic @ 10 MHz
Outstanding Load Drive Capability
Drives 50 mA 0.5 V from Supply Rails
Cap Load Drive of 45 pF
APPLICATIONS
Power Sensitive High Speed Systems
Video Switchers
Distribution Amplifiers
A/D Driver
Professional Cameras
CCD Imaging Systems
Ultrasound Equipment (Multichannel)
Single-Supply Multiplexer
PRODUCT DESCRIPTIONThe AD8041 is a low power voltage feedback, high-speed ampli-
fier designed to operate on +3 V, +5 V, or ±5 V supplies. It has
true single supply capability with an input voltage range extending
200mV below the negative rail and within 1V of the positive rail.
Figure 1.Output Swing:G = –1, VS = 5 V
The output voltage swing extends to within 50 mV of each rail,
providing the maximum output dynamic range. Additionally, it
features gain flatness of 0.1 dB to 30 MHz while offering differ-
ential gain and phase error of 0.03% and 0.03° on a single 5 V
supply. This makes the AD8041 ideal for professional video
electronics such as cameras, video switchers or any high-speed
portable equipment. The AD8041’s low distortion and fast settling
make it ideal for buffering high-speed A-to-D converters.
The AD8041 has a high-speed disable feature useful for mul-
tiplexing or for reducing power consumption (1.5 mA). The
disable logic interface is compatible with CMOS or open-
collector logic. The AD8041 offers low power supply current of
5.8 mA max and can run on a single 3 V power supply. These
features are ideally suited for portable and battery powered
applications where size and power are critical.
The wide bandwidth of 160 MHz along with 160 V/µs of slew
rate on a single 5 V supply make the AD8041 useful in many
general purpose high-speed applications where dual power
supplies of up to ±6 V and single supplies from 3 V to 12 V are
needed. The AD8041 is available in 8-lead plastic DIP and
SOIC over the industrial temperature range of –40°C to +85°C.
Figure 2.Frequency Response:G = +2, VS = 5 V
*Protected under U.S. Patent No. 5,537,079.
AD8041–SPECIFICATIONS
(@ TA = 25�C, VS = 5 V, RL = 2 k� to 2.5 V, unless otherwise noted.)Specifications subject to change without notice.
AD8041SPECIFICATIONS(@ TA = 25�C, VS = 3 V, RL = 2 k� to 1.5 V, unless otherwise noted)Specifications subject to change without notice.
DC PERFORMANCE
OUTPUT CHARACTERISTICS
Specifications subject to change without notice.
(@ TA = 25�C, VS = �5 V, RL = 2 k� to 0 V, unless otherwise noted)
AD8041–SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS1Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.6 V
Internal Power Dissipation2
Plastic DIP Package (N) . . . . . . . . . . . . . . . . . . . 1.3 Watts
Small Outline Package (R) . . . . . . . . . . . . . . . . . . 0.9 Watts
Input Voltage (Common Mode) . . . . . . . . . . . . . . . . . . . . ±VS
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . ±3.4 V
Output Short Circuit Duration
. . . . . . . . . . . . . . . . . . . . . .Observe Power Derating Curves
Storage Temperature Range N, R . . . . . . . . –65°C to +125°C
Operating Temperature Range (A Grade) . . . –40°C to +85°C
Lead Temperature Range (Soldering 10 sec) . . . . . . . . . 300°C
NOTES
1Stresses 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.
2Specification is for the device in free air:
8-Lead Plastic DIP Package: θJA = 90°C/W.
8-Lead SOIC Package: θJA = 155°C/W.
MAXIMUM POWER DISSIPATIONThe maximum power that can be safely dissipated by the
AD8041 is limited by the associated rise in junction temperature.
The maximum safe junction temperature for plastic encapsulated
devices is determined by the glass transition temperature of the
plastic, approximately 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 AD8041 is internally short circuit protected, this may
not be sufficient to guarantee that the maximum junction tem-
perature (150°C) is not exceeded under all conditions. To
ensure proper operation, it is necessary to observe the maximum
power derating curves.
Figure 3.Maximum Power Dissipation vs. Temperature
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 AD8041 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.
ORDERING GUIDE*Refer to official DSCC drawing for tested specifications.
TPC 1.Typical Distribution of VOS
TPC 2.VOS Drift Over –40°C to +85°C
TPC 3.IB vs. Temperature
AD8041–Typical Performance CharacteristicsTPC 4.Open-Loop Gain vs. RL to 25°C
TPC 5.Open-Loop Gain vs. Temperature
TPC 6.Open-Loop Gain vs. Output Voltage
TPC 7.Input Voltage Noise vs. Frequency
TPC 8.Total Harmonic Distortion
TPC 9.Worst Harmonic vs. Output Voltage
TPC 10.Differential Gain and Phase Errors
TPC 11.0.1 dB Gain Flatness
OPEN-LOOP GAIN
dB
PHASE
�C
FREQUENCY – MHz TPC 12.Open-Loop Gain and Phase vs. Frequency
TPC 13.Closed-Loop Frequency Response
vs. Temperature
TPC 14.Closed-Loop Frequency Response vs. Supply
TPC 15.Output Resistance vs. Frequency
TPC 16.Settling Time vs. Input Step
TPC 17.CMRR vs. Frequency
LOAD CURRENT – mA
OUTPUT SATURATION VOLTAGE
mV
0.1110100TPC 18.Output Saturation Voltage vs. Load Current
AD8041–Typical Performance Characteristics
