Analog Devices AD8041AR, AD8041AN, AD8041-EB, AD8041AR-REEL7, AD8041AR-REEL Datasheet
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CONNECTION DIAGRAM
8-Lead DIP and SOIC
ⴙV
S
DISABLE
1
2
3
4
8
7
6
5
NC = NO CONNECT
NC
NC
OUTPUT
–INPUT
ⴙINPUT
–V
S
AD8041
(Top View)
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.
a
160 MHz Rail-to-Rail
Amplifier with Disable
AD8041*
FEATURES
Fully Specified for +3 V, +5 V, and ⴞ5 V Supplies
Output Swings Rail to Rail
Input Voltage Range Extends 200 mV Below Ground
No Phase Reversal with Inputs 1 V 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 (R
L
= 150 ⍀, G = +2)
Gain Flatness of 0.1 dB to 30 MHz
0.03% Differential Gain Error
0.03ⴗ 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 DESCRIPTION
The AD8041 is a low power voltage feedback, high-speed amplifier designed to operate on +3 V, +5 V, or ±5 V supplies. It has
true single supply capability with an input voltage range extending
200 mV below the negative rail and within 1 V of the positive rail.
5V
2.5V
0V
200ns
1V
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 differential 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 multiplexing or for reducing power consumption (1.5 mA). The
disable logic interface is compatible with CMOS or opencollector 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.
FREQUENCY – MHz
VS = 5V
G = +2
R
F
= 400⍀
0
100
NORMALIZED GAIN – dB
80
60
40
20
0
2
1
–2
–1
–8
–7
–6
–5
–4
–3
Figure 2. Frequency Response: G = +2, VS = 5 V
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: www.analog.com
Fax: 781/326-8703 © Analog Devices, Inc., 2001
*Protected under U.S. Patent No. 5,537,079.
AD8041–SPECIFICATIONS
REV. A
–2–
(@ TA = 25ⴗC, VS = 5 V, RL = 2 k⍀ to 2.5 V, unless otherwise noted.)
AD8041A
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
–3 dB Small Signal Bandwidth, V
O
< 0.5 V p-p G = +1 130 160 MHz
Bandwidth for 0.1 dB Flatness G = +2, R
L
= 150 Ω 30 MHz
Slew Rate G = –1, V
O
= 2 V Step 130 160 V/µs
Full Power Response V
O
= 2 V p-p 24 MHz
Settling Time to 0.1% G = –1, V
O
= 2 V Step 35 ns
Settling Time to 0.01% 55 ns
NOISE/DISTORTION PERFORMANCE
Total Harmonic Distortion f
C
= 5 MHz, VO = 2 V p-p, G = +2, RL = 1 kΩ –72 dB
Input Voltage Noise f = 10 kHz 16 nV/√Hz
Input Current Noise f = 10 kHz 600 fA/√Hz
Differential Gain Error (NTSC) G = +2, R
L
= 150 Ω to 2.5 V 0.03 %
G = +2, R
L
= 75 Ω to 2.5 V 0.01 %
Differential Phase Error (NTSC) G = +2, R
L
= 150 Ω to 2.5 V 0.03 Degrees
G = +2, RL = 75 Ω to 2.5 V 0.19 Degrees
DC PERFORMANCE
Input Offset Voltage 27mV
T
MIN
to T
MAX
8mV
Offset Drift 10 µV/°C
Input Bias Current 1.2 3.2 µA
T
MIN
to T
MAX
3.5 µA
Input Offset Current 0.2 0.5 µA
Open-Loop Gain R
L
= 1 kΩ 86 95 dB
T
MIN
to T
MAX
90 dB
INPUT CHARACTERISTICS
Input Resistance 160 kΩ
Input Capacitance 1.8 pF
Input Common-Mode Voltage Range –0.2 to +4 V
Common-Mode Rejection Ratio VCM = 0 V to 3.5 V 74 80 dB
OUTPUT CHARACTERISTICS
Output Voltage Swing: R
L
= 10 kΩ 0.05 to 4.95 V
Output Voltage Swing: R
L
= 1 kΩ 0.35 to 4.75 0.1 to 4.9 V
Output Voltage Swing: R
L
= 50 Ω 0.4 to 4.4 0.3 to 4.5 V
Output Current V
OUT
= 0.5 V to 4.5 V 50 mA
Short Circuit Current Sourcing 90 mA
Sinking 150 mA
Capacitive Load Drive G = +1 45 pF
POWER SUPPLY
Operating Range 312V
Quiescent Current 5.2 5.8 mA
Quiescent Current (Disabled) 1.4 1.7 mA
Power Supply Rejection Ratio VS = 0, +5 V, ±1 V 72 80 dB
DISABLE CHARACTERISTICS V
O
= 2 V p-p @ 10 MHz, G = +2
Turn-Off Time R
F
= RL = 2 kΩ 120 ns
Turn-On Time R
F
= RL = 2 kΩ 230 ns
Off Isolation (Pin 8 Tied to –V
S
)R
L
= 100 Ω, f = 5 MHz, G = +2, RF = 1 kΩ 70 dB
Off Voltage (Device Disabled) <V
S
– 2.5 V
On Voltage (Device Enabled) Open or +V
S
V
Specifications subject to change without notice.
REV. A
–3–
AD8041
SPECIFICATIONS
(@ TA = 25ⴗC, VS = 3 V, RL = 2 k⍀ to 1.5 V, unless otherwise noted)
AD8041A
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
–3 dB Small Signal Bandwidth, V
O
< 0.5 V p-p G = +1 120 150 MHz
Bandwidth for 0.1 dB Flatness G = +2, R
L
= 150 Ω 25 MHz
Slew Rate G = –1, V
O
= 2 V Step 120 150 V/µs
Full Power Response V
O
= 2 V p-p 20 MHz
Settling Time to 0.1% G = –1, V
O
= 2 V Step 40 ns
Settling Time to 0.01% 55 ns
NOISE/DISTORTION PERFORMANCE
Total Harmonic Distortion f
C
= 5 MHz, VO = 2 V p-p, G = –1, RL = 100 Ω –55 dB
Input Voltage Noise f = 10 kHz 16 nV/√Hz
Input Current Noise f = 10 kHz 600 fA/√Hz
Differential Gain Error (NTSC) G = +2, R
L
= 150 Ω to 1.5 V, Input VCM = 1 V 0.07 %
Differential Phase Error (NTSC) G = +2, RL = 150 Ω to 1.5 V, Input VCM = 1 V 0.05 Degrees
DC PERFORMANCE
Input Offset Voltage 27mV
T
MIN
to T
MAX
8mV
Offset Drift 10 µV/°C
Input Bias Current 1.2 3.2 µA
T
MIN
to T
MAX
3.5 µA
Input Offset Current 0.2 0.6 µA
Open-Loop Gain R
L
= 1 kΩ 85 94 dB
T
MIN
to T
MAX
89 dB
INPUT CHARACTERISTICS
Input Resistance 160 kΩ
Input Capacitance 1.8 pF
Input Common-Mode Voltage Range –0.2 to +2 V
Common-Mode Rejection Ratio VCM = 0 V to 1.5 V 72 80 dB
OUTPUT CHARACTERISTICS
Output Voltage Swing: R
L
= 10 kΩ 0.05 to 2.95 V
Output Voltage Swing: R
L
= 1 kΩ 0.45 to 2.7 0.1 to 2.9 V
Output Voltage Swing: R
L
= 50 Ω 0.5 to 2.6 0.25 to 2.75 V
Output Current V
OUT
= 0.5 V to 2.5 V 50 mA
Short Circuit Current Sourcing 70 mA
Sinking 120 mA
Capacitive Load Drive G = +1 40 pF
POWER SUPPLY
Operating Range 312V
Quiescent Current 5.0 5.6 mA
Quiescent Current (Disabled) 1.3 1.5 mA
Power Supply Rejection Ratio VS = 0, +3 V, ±0.5 V 68 80 dB
DISABLE CHARACTERISTICS V
O
= 2 V p-p @ 10 MHz, G = +2
Turn-Off Time R
F
= RL = 2 kΩ 90 ns
Turn-On Time R
F
= RL = 2 kΩ 170 ns
Off Isolation (Pin 8 Tied to –V
S
)R
L
= 100 Ω, f = 5 MHz, G = +2, RF = 1 kΩ 70 dB
Off Voltage (Device Disabled) <V
S
– 2.5 V
On Voltage (Device Enabled) Open or +V
S
V
Specifications subject to change without notice.
AD8041A
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
–3 dB Small Signal Bandwidth, V
O
< 0.5 V p-p G = +1 140 170 MHz
Bandwidth for 0.1 dB Flatness G = +2, R
L
= 150 Ω 32 MHz
Slew Rate G = –1, V
O
= 2 V Step 140 170 V/µs
Full Power Response V
O
= 2 V p-p 26 MHz
Settling Time to 0.1% G = –1, V
O
= 2 V Step 30 ns
Settling Time to 0.01% 50 ns
NOISE/DISTORTION PERFORMANCE
Total Harmonic Distortion f
C
= 5 MHz, VO = 2 V p-p, G = +2, RL = 1 kΩ –77 dB
Input Voltage Noise f = 10 kHz 16 nV/√Hz
Input Current Noise f = 10 kHz 600 fA/√Hz
Differential Gain Error (NTSC) G = +2, R
L
= 150 Ω 0.02 %
G = +2, R
L
= 75 Ω 0.02 %
Differential Phase Error (NTSC) G = +2, R
L
= 150 Ω 0.03 Degrees
G = +2, RL = 75 Ω 0.10 Degrees
DC PERFORMANCE
Input Offset Voltage 27mV
T
MIN
to T
MAX
8mV
Offset Drift 10 µV/°C
Input Bias Current 1.2 3.2 µA
T
MIN
to T
MAX
3.5 µA
Input Offset Current 0.2 0.6 µA
Open-Loop Gain R
L
= 1 kΩ 90 99 dB
T
MIN
to T
MAX
95 dB
INPUT CHARACTERISTICS
Input Resistance 160 kΩ
Input Capacitance 1.8 pF
Input Common-Mode Voltage Range –5.2 to +4 V
Common-Mode Rejection Ratio VCM = –5 V to +3.5 V 72 80 dB
OUTPUT CHARACTERISTICS
Output Voltage Swing: R
L
= 10 kΩ –4.95 to +4.95 V
Output Voltage Swing: R
L
= 1 kΩ –4.45 to +4.6 –4.8 to +4.8 V
Output Voltage Swing: R
L
= 50 Ω –4.3 to +3.2 –4.5 to +3.8 V
Output Current V
OUT
= –4.5 V to +4.5 V 50 mA
Short Circuit Current Sourcing 100 mA
Sinking 160 mA
Capacitive Load Drive G = +1 50 pF
POWER SUPPLY
Operating Range 312V
Quiescent Current 5.8 6.5 mA
Quiescent Current (Disabled) 1.6 2.2 mA
Power Supply Rejection Ratio VS = –5 V, +5 V, ±1 V 68 80 dB
DISABLE CHARACTERISTICS V
O
= 2 V p-p @ 10 MHz, G = +2
Turn-Off Time R
F
= 2 kΩ 120 ns
Turn-On Time R
F
= 2 kΩ 320 ns
Off Isolation (Pin 8 Tied to –V
S
)R
L
= 100 Ω, f = 5 MHz, G = +2, RF = 1 kΩ 70 dB
Off Voltage (Device Disabled) <V
S
– 2.5 V
On Voltage (Device Enabled) Open or +V
S
Specifications subject to change without notice.
(@ TA = 25ⴗC, VS = ⴞ5 V, RL = 2 k⍀ to 0 V, unless otherwise noted)
REV. A
–4–
AD8041–SPECIFICATIONS
AD8041
REV. A
–5–
ABSOLUTE MAXIMUM RATINGS
1
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.6 V
Internal Power Dissipation
2
Plastic DIP Package (N) . . . . . . . . . . . . . . . . . . . 1.3 Watts
Small Outline Package (R) . . . . . . . . . . . . . . . . . . 0.9 Watts
Input Voltage (Common Mode) . . . . . . . . . . . . . . . . . . . . ± V
S
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
1
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. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
2
Specification 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 DISSIPATION
The 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 temperature (150°C) is not exceeded under all conditions. To
ensure proper operation, it is necessary to observe the maximum
power derating curves.
MAXIMUM POWER DISSIPATION – Watts
AMBIENT TEMPERATURE – ⴗC
2.0
1.5
0
–50 90–40 –30 –20 –10 0 102030 506070 8040
1.0
0.5
8-LEAD PLASTIC DIP PACKAGE
8-LEAD SOIC PACKAGE
TJ = 150ⴗC
Figure 3. Maximum Power Dissipation vs. Temperature
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 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
Temperature Package Package
Model Range Description Options
AD8041AN –40°C to +85°C 8-Lead Plastic DIP N-8
AD8041AR –40°C to +85°C 8-Lead Plastic SOIC SO-8
AD8041AR-REEL –40°C to +85°C 13" Tape and Reel SO-8
AD8041AR-REEL7 –40°C to +85°C 7" Tape and Reel SO-8
AD8041-EB Evaluation Board
5962-9683901MPA* –55°C to +125°C 8-Lead Cerdip Q-8
*Refer to official DSCC drawing for tested specifications.
WARNING!
ESD SENSITIVE DEVICE
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